Local events in Defiance
31 events in the next 90 days from 7 public calendars. All local events in Defiance
Checked October 20; the events page is refreshed daily.
Notable people from Defiance
Ohioans tied to this place, each with a sourced profile. All notable Ohioans
History from Defiance
People and inventions tied to this place, each with its sources. All people · All inventions
How Defiance began
Defiance was laid out in 1822 on the site of Fort Defiance, the stronghold General Anthony Wayne built in August 1794 at the confluence of the Maumee and Auglaize rivers after destroying the Native settlement cluster called the Glaize. The town became Defiance County's seat when the county organized in 1845, incorporated as a city in 1881, and grew around the Miami and Erie Canal's turn south toward Cincinnati and, later, Defiance College. Today it is the county's largest city and its government and commercial center.
Settled 1794 (Fort Defiance, military), platted 1822, incorporated 1881.
Where the name comes from
Named for Fort Defiance, built by Anthony Wayne's army in August 1794. Sources disagree on the exact origin of the name: Wikipedia's article on the city has Wayne telling General Charles Scott, "I defy the English, Indians, and all the devils of hell to take it," while Wikipedia's article on the fort attributes the same declaration to Scott himself.
Before the town
Modern Defiance occupies the site of the Glaize, a cluster of at least seven Shawnee, Delaware (Lenape) and Miami villages at the Maumee-Auglaize confluence that reached a peak population of about two thousand people in 1792 and hosted a major multi-nation council that October. Blue Jacket's own village stood a mile up the Auglaize from its mouth; the principal village, on the point where Fort Defiance was later built, held the community's British and French-Canadian traders, among them George Ironsides. An Iroquois widow and priestess named Cooh-coo-che lived in a bark cabin on the north bank of the Maumee directly across from that point, and it was in her household that eleven-year-old captive O. M. Spencer spent eight months in 1792. Wayne's army destroyed the Glaize in August 1794 and built Fort Defiance on its ashes; the 1795 Treaty of Greenville then reserved a six-square-mile enclave around the new fort to the United States, the seed of the town platted there in 1822. A local tradition, commemorated by the city's own Pontiac Park at the confluence, holds that the Ottawa leader Pontiac was born at this spot or at a nearby Odawa village on the Maumee -- Wikipedia's article on Pontiac treats this as one of several unverifiable traditions about a birth year and place no contemporary document records.
Nations recorded here: Shawnee, Lenape (Delaware), Miami, Mingo (Seneca-Cayuga), Ottawa (Odawa), Mohawk (Haudenosaunee).
- The Glaize principal village / Fort Defiance site (village) — Fort Defiance Park, confluence of the Maumee and Auglaize rivers, 1780s-1794 (encyclopedia.com)
- Cooh-coo-che's cabin (camp) — north bank of the Maumee River, opposite Fort Defiance Park, 1792 (archive.org)
- Pontiac Park birthplace tradition (other) — Pontiac Park, confluence of Maumee and Auglaize rivers, tradition, disputed (en.wikipedia.org)
Timeline
- — Anthony Wayne's army begins building Fort Defiance on the site of the destroyed Glaize villages; construction finishes August 17.
- — The Treaty of Greenville reserves a six-square-mile enclave around Fort Defiance to the United States.
- — Fort Defiance is abandoned.
- — William Henry Harrison's forces build Fort Winchester on and near the old Fort Defiance ground as a War of 1812 staging post.
- — Defiance is laid out as a town on the fort site.
- — Johnny Appleseed starts a nursery about a mile above town, near the mouth of the Tiffin River.
- — Defiance becomes county seat of the newly organized Defiance County.
- — The Christian Connection opens Defiance Female Seminary, later Defiance College.
- — Defiance incorporates as a city.
- — Defiance Female Seminary is renamed Defiance College.
- — Fort Defiance Park is listed on the National Register of Historic Places.
Stories
A fort built on a ruined capital
Where downtown Defiance now sits, the Maumee and Auglaize rivers meet at a point the French called Au Glaize, and by the early 1790s it was one of the most important Native settlements in the Northwest: a cluster of at least seven villages of Shawnee, Delaware and Miami people, with British and French-Canadian traders living among them, that had grown to roughly two thousand residents by 1792. That October it hosted a council chiefs of dozens of nations attended, one of the largest Indian gatherings on record for the era. General Anthony Wayne's army ended it in August 1794, finding the villages abandoned, burning their cornfields and cabins, and building a stockade strong enough, Wayne wrote, "to defy the English, Indians, and all the devils of hell to take it" -- or so one telling of the fort's naming goes; a second version credits the line to Kentucky militia officer Charles Scott instead. The fort held through the War of 1812 as Fort Winchester before it was abandoned for good, and in 1822 a town was laid out on the same ground. It became Defiance County's seat in 1845 and a city in 1881, and Pontiac Park, at the exact point where the old villages stood, now carries a local tradition -- unverified but long repeated -- that the Ottawa leader Pontiac himself was born there.
Eight months with Cooh-coo-che
In July 1792, eleven-year-old O. M. Spencer was seized a short walk from his family's Cincinnati home and marched six days north to the Glaize. His Shawnee captor handed him off to a Mohawk man named White Loon, who left the boy in a small bark cabin on the Maumee's north bank, directly across the water from the point where Fort Defiance would rise two years later. The cabin belonged to White Loon's mother-in-law, an Iroquois widow named Cooh-coo-che -- described in the county's 1883 history as a princess of her people and a medicine woman whom warriors consulted before going to war. Her own husband, a Mohawk war chief who had left the St. Lawrence after his people's defeat in the Revolution, had been killed in 1790 fighting Josiah Harmar's army; she later moved his remains to a grave near the war path and buried him sitting upright, facing west, with his weapons and moccasins beside him. Spencer spent eight months in her household, across corn fields that by his account stretched more than a mile up the Auglaize, before an American prisoner at large helped arrange his release -- leaving behind one of the few detailed accounts of daily life at the Glaize in the years just before Wayne's army destroyed it.
Photographs
Photo: Columbus Metropolitan Library, via Digital Public Library of America, public domain · Wikimedia Commons
Photo: Chris Light, CC BY-SA 4.0 · Wikimedia Commons
Local history sources: en.wikipedia.org · en.wikipedia.org · en.wikipedia.org · en.wikipedia.org · en.wikipedia.org · encyclopedia.com · archive.org · commons.wikimedia.org · commons.wikimedia.org
Historic places
7 places in Defiance on the National Register of Historic Places. Press a pin or a name for its whole record.
-
Defiance Public LibraryBuilding · Defiance · listed 1985
- Address
- 320 Fort St.
- Where
- Defiance, Defiance County · ZIP 43512
- What it is
- Building
- Listed on the National Register
- 1985
- NRIS reference number
- 85003446
- Coordinates
- 41.28785, -84.35858
National Register file (NPS) ↗ Search Wikipedia ↗ Street map and directions ↗ On the Cracked Buckeye map
-
Dey Road BridgeStructure · Defiance · listed 1999
- Address
- 0.35 mi. E of US 24
- Where
- Defiance, Defiance County · ZIP 43512
- What it is
- Structure
- Listed on the National Register
- 1999
- NRIS reference number
- 99000095
- Coordinates
- 41.29036, -84.38559
National Register file (NPS) ↗ Search Wikipedia ↗ Street map and directions ↗ On the Cracked Buckeye map
-
East Side Fire StationBuilding · Defiance · listed 1976
- Address
- Douglas and Hopkins Sts.
- Where
- Defiance, Defiance County · ZIP 43512
- What it is
- Building
- Listed on the National Register
- 1976
- NRIS reference number
- 76001413
- Coordinates
- 41.28102, -84.35122
National Register file (NPS) ↗ Search Wikipedia ↗ Street map and directions ↗ On the Cracked Buckeye map
-
Fort Defiance ParkSite · Defiance · listed 1980
- Address
- Fort St.
- Where
- Defiance, Defiance County · ZIP 43512
- What it is
- Site
- Listed on the National Register
- 1980
- NRIS reference number
- 80002989
- Coordinates
- 41.28754, -84.35668
National Register file (NPS) ↗ Search Wikipedia ↗ Street map and directions ↗ On the Cracked Buckeye map
-
Latty, Judge Alexander, HouseBuilding · Defiance · listed 1991
- Address
- 718 Perry St.
- Where
- Defiance, Defiance County · ZIP 43512
- What it is
- Building
- Listed on the National Register
- 1991
- NRIS reference number
- 90002214
- Coordinates
- 41.28066, -84.37284
National Register file (NPS) ↗ Search Wikipedia ↗ Street map and directions ↗ On the Cracked Buckeye map
-
Riverside ChapelBuilding · Defiance · listed 1977
- Address
- S. Clinton St. in Riverside Cemetery
- Where
- Defiance, Defiance County · ZIP 43512
- What it is
- Building
- Listed on the National Register
- 1977
- NRIS reference number
- 77001058
- Coordinates
- 41.27344, -84.37826
National Register file (NPS) ↗ Search Wikipedia ↗ Street map and directions ↗ On the Cracked Buckeye map
-
Speaker, Charles, HouseBuilding · Defiance · listed 1997
- Address
- 912 Holgate Ave.
- Where
- Defiance, Defiance County · ZIP 43512
- What it is
- Building
- Listed on the National Register
- 1997
- NRIS reference number
- 97000374
- Coordinates
- 41.28267, -84.37431
National Register file (NPS) ↗ Search Wikipedia ↗ Street map and directions ↗ On the Cracked Buckeye map
Source: National Park Service, National Register of Historic Places point file. The listing year is shown where NPS's certification date agrees with the listing's reference number. Listing recognizes significance; it does not restrict a private owner.
Water
Maumee River water pulled through two river intakes and stored in a 74-acre upground (off-channel) reservoir before treatment, near the Maumee/Auglaize/Tiffin River confluence at Defiance The water here
- Defiance City94% of residentsMaumee River (via 74-acre upground reservoir)
- Ayersville Water and Sewer District3% of residentsMaumee River (via 74-acre upground reservoir)
- Christi Water System Inc2% of residentsMaumee River (via 74-acre upground reservoir)
- Brunersburg Wd - Brunersburg1% of residentsMaumee River (via 74-acre upground reservoir)
- Brunersburg Wd - Airport0% of residentsMaumee River (via 74-acre upground reservoir)
Hospitals, fire stations and more
Inside Defiance's boundary: 2 hospitals, 1 health center, 2 dialysis centers, 2 nursing homes, 1 fire or EMS station, 1 college, 1 power plant, 3 public schools, 2 private schools, 1 library, 3 museums, 2 police stations, 4 public charging sites, 3 Superfund sites, 12 Toxics Release Inventory facilities and 27 spill cases. Press a pin or a name for its whole record and its source.
Hospitals (2)
-
Defiance Regional Medical Center Trauma level IIIGeneral hospital · Defiance
- What it is
- General hospital
- Address
- 1200 Ralston Avenue, Defiance, OH 43512
- County
- Defiance County
- Beds
- 51
- Trauma center
- Level IIi
- Helipad
- Yes
- Ownership
- Non-profit
- Medicare overall rating
- 5 of 5 stars
- Emergency department (Medicare)
- Yes
- Medicare reports it as
- Promedica Defiance Regional Hospital
- Phone
- (419) 783-4493
- Medicare ID
- 361328
Medicare Care Compare ↗ Where HIFLD got this record ↗ HIFLD hospitals (source) ↗ Street map and directions ↗
-
Mercy Health - Defiance Hospital, LlcGeneral hospital · Defiance
- What it is
- General hospital
- Address
- 1404 East Second Street, Defiance, OH 43512
- County
- Defiance County
- Beds
- 23
- Helipad
- Yes
- Ownership
- Non-profit
- Medicare overall rating
- 4 of 5 stars
- Emergency department (Medicare)
- Yes
- Medicare reports it as
- Mercy Health - Defiance Hospital
- Phone
- (419) 782-8444
- Medicare ID
- 360270
Medicare Care Compare ↗ Hospital's website ↗ Where HIFLD got this record ↗ HIFLD hospitals (source) ↗ Street map and directions ↗
Source: HIFLD hospitals inventory via FEMA (closed hospitals it still lists left out, hospitals opened since added), with Medicare Care Compare ratings matched by name and address.
Community health centers (1)
-
Defiance Community Health CenterHealth center · Defiance
- Run by
- a federally qualified health center
- Setting
- Clinic
- City
- Defiance
- Coordinates
- 41.29773, -84.37186
Find a Health Center (HRSA) ↗ HRSA data (source) ↗ Street map and directions ↗
Source: HRSA health center service delivery sites, active, September 2026 (school-based sites left out). Health centers see patients whether or not they have insurance, with fees on a sliding scale.
Dialysis centers (2)
-
Fmc - DefianceDialysis · Defiance
- Address
- 1850 East Second Street, Suites 1850 & 1846, Defiance, OH 43512
- Dialysis stations
- 12
- Medicare star rating
- 3 of 5 stars
- Services
- in-center hemodialysis, peritoneal dialysis, home hemodialysis training
- Ownership
- for profit
- Chain
- Fresenius Medical Care
- Medicare certified since
- 2003-12-01
- Phone
- (419) 782-9090
- Medicare ID
- 362665
Medicare Care Compare ↗ CMS dialysis facility list (source) ↗ Street map and directions ↗
-
Usrc Defiance DialysisDialysis · Defiance
- Address
- 220 Stadium Drive, Defiance, OH 43512
- Dialysis stations
- 12
- Medicare star rating
- 4 of 5 stars
- Services
- in-center hemodialysis
- Ownership
- for profit
- Chain
- US Renal Care, Inc.
- Medicare certified since
- 2003-02-12
- Phone
- (419) 784-2100
- Medicare ID
- 362654
Medicare Care Compare ↗ CMS dialysis facility list (source) ↗ Street map and directions ↗
Source: CMS dialysis facility list, September 2026, geocoded with the Census Bureau batch geocoder (an address it could not place sits at its ZIP center).
Nursing homes (2)
-
Brookview Healthcare Center2 of 5 stars · Defiance
- Address
- 214 Harding Street, Defiance, OH 43512
- Certified beds
- 89
- Residents on an average day
- 74
- Medicare overall rating
- 2 of 5 stars
- Health inspections
- 3 of 5 stars
- Staffing
- 1 of 5 stars
- Quality measures
- 4 of 5 stars
- Penalties since 2023
- none
- Ownership
- For profit - Limited Liability company
- Chain
- LIONSTONE CARE
- Takes
- Medicare and Medicaid
- Phone
- (419) 784-1014
- Medicare ID
- 365447
Medicare Care Compare ↗ CMS nursing home data (source) ↗ Street map and directions ↗
-
Laurels of Defiance The4 of 5 stars · Defiance
- Address
- 1701 S Jefferson Ave, Defiance, OH 43512
- Certified beds
- 107
- Residents on an average day
- 93
- Medicare overall rating
- 4 of 5 stars
- Health inspections
- 4 of 5 stars
- Staffing
- 3 of 5 stars
- Quality measures
- 4 of 5 stars
- Penalties since 2023
- none
- Ownership
- For profit - Corporation
- Chain
- CIENA HEALTHCARE/LAUREL HEALTH CARE
- Takes
- Medicare and Medicaid
- Phone
- (419) 782-7879
- Medicare ID
- 365389
Medicare Care Compare ↗ CMS nursing home data (source) ↗ Street map and directions ↗
Source: CMS Care Compare nursing home provider and penalties files; Medicare star ratings run 1 to 5.
Fire and EMS stations (1)
-
Defiance Fire and Rescue Central Fire StationDefiance
- Address
- 702 West 3rd Street, Defiance, OH 43512
- Coordinates
- 41.28657, -84.36425
USGS National Map structures (source) ↗ Street map and directions ↗
Source: USGS National Map structures (most Ohio records last updated 2019 to 2022), checked against the Columbus and Cleveland station lists. The department that answers a call is set by jurisdiction and mutual aid, not by distance.
Colleges (1)
-
Defiance CollegePrivate nonprofit college · Defiance
- What it is
- Private nonprofit college
- City
- Defiance
- Students, 2023-24 (12-month count)
- 572
- Tuition and fees, in state
- $38,778
- Graduation rate
- 37% of bachelor's students, within six years (a class of 150)
- IPEDS unit ID
- 202514
College Navigator (NCES) ↗ IPEDS data (source) ↗ Street map and directions ↗
Source: NCES IPEDS 2024 directory, 2023-24 enrollment and tuition, graduation rates for the 2017 (four-year) and 2020 (two-year) entering classes.
Power plants (1)
-
Richland 100 MW or moreNatural gas · 369 MW
- Capacity
- 369 MW
- By fuel
- natural gas 358 MW, oil 11 MW
- Main source
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine; Petroleum Liquids;
- Operator
- Richland-Stryker Generation LLC
- Sector
- IPP Non-CHP
- Where
- Defiance, Defiance County
- Generating units
- 6
- Built
- 1965 (first unit); newest unit 2001
- EIA plant code
- 2880
EIA plant page ↗ EIA-860 (source) ↗ Street map and directions ↗
Source: EIA-860 power plant inventory via HIFLD (February 2025), with plant codes, units and years from EIA-860 2025.
Public schools (3)
-
Defiance Elementary School4 of 5 stars · Defiance
- Address
- 400 Carter Rd, Defiance, OH 43512
- School district
- Defiance City School District
- Kind (NCES)
- Regular School
- Students, 2023-24
- 1,053
- Teachers (full-time equivalent)
- 63.84
- Report card, 2025-26
- 4 of 5 stars
- Performance index
- 77.5%
- Ohio building IRN
- 011430
- NCES school ID
- 390438605516
NCES school record ↗ Ohio School Report Card ↗ Street map and directions ↗
-
Defiance High School3.5 of 5 stars · Defiance
- Address
- 1755 Palmer Dr, Defiance, OH 43512
- School district
- Defiance City School District
- Kind (NCES)
- Regular School
- Students, 2023-24
- 713
- Teachers (full-time equivalent)
- 44.18
- Report card, 2025-26
- 3.5 of 5 stars
- Performance index
- 76%
- Four-year graduation rate
- 97.9%
- Ohio building IRN
- 008300
- NCES school ID
- 390438600841
NCES school record ↗ Ohio School Report Card ↗ Street map and directions ↗
-
Defiance Middle School4 of 5 stars · Defiance
- Address
- 1755 Palmer Dr, Defiance, OH 43512
- School district
- Defiance City School District
- Kind (NCES)
- Regular School
- Students, 2023-24
- 557
- Teachers (full-time equivalent)
- 33
- Report card, 2025-26
- 4 of 5 stars
- Performance index
- 77%
- Ohio building IRN
- 008292
- NCES school ID
- 390438600840
NCES school record ↗ Ohio School Report Card ↗ Street map and directions ↗
Source: NCES EDGE public school locations 2024-25 and Common Core of Data 2023-24 (type, students, teachers); Ohio School Report Cards 2025-26 (Department of Education and Workforce), matched by name within the district.
Private schools (2)
-
Holy Cross Catholic SchoolPrivate, Catholic · Defiance
- Address
- 1745 S Clinton St, Defiance, OH 43512
- Kind
- Catholic
- Students, 2023-24
- 84
- Teachers (full-time equivalent)
- 7.8
- Students per teacher
- 10.7692
- Phone
- (419) 784-2021
- NCES private school ID
- 01060761
-
St John Lutheran SchoolPrivate, religious, denomination-affiliated · Defiance
- Address
- 655 Wayne Ave, Defiance, OH 43512
- Kind
- religious, denomination-affiliated
- Students, 2023-24
- 79
- Teachers (full-time equivalent)
- 8.4
- Students per teacher
- 9.40476
- Phone
- (419) 782-1751
- NCES private school ID
- 01063343
Source: NCES Private School Survey 2023-24.
Public libraries (1)
-
Defiance Public LibraryCentral library · Defiance
- Address
- 320 Fort St., Defiance, OH 43512
- What it is
- Central library
- Library system
- Defiance Public Library
- Open
- 2,321 hours a year, 51 weeks
- Building
- 19,290 sq ft
- System's visits, FY2024
- 86,060
- System's loans, FY2024
- 374,214
- People the system serves
- 38,286
- Phone
- (419) 782-1456
IMLS Public Libraries Survey (source) ↗ Street map and directions ↗
Source: IMLS Public Libraries Survey FY2024 (outlets and their systems). Any Ohio resident can get a free card at any Ohio public library.
Museums, historical societies, gardens and zoos (3)
-
Defiance County Historical SocietyHistorical society · Defiance
- What it is
- Historical society
- City
- Defiance
- Coordinates
- 41.28600, -84.36155
Search Wikipedia ↗ IMLS Museum Data Files (source) ↗ Street map and directions ↗
The museum list is IMLS's 2018 file; a museum may have closed or moved since.
-
Historic Homes Of DefianceHistorical society · Defiance
- What it is
- Historical society
- City
- Defiance
- Coordinates
- 41.28295, -84.36511
Search Wikipedia ↗ IMLS Museum Data Files (source) ↗ Street map and directions ↗
The museum list is IMLS's 2018 file; a museum may have closed or moved since.
-
Women'S Commission Art GalleryArt museum · Defiance
- What it is
- Art museum
- City
- Defiance
- Coordinates
- 41.29578, -84.36063
Search Wikipedia ↗ IMLS Museum Data Files (source) ↗ Street map and directions ↗
The museum list is IMLS's 2018 file; a museum may have closed or moved since.
Source: IMLS Museum Data Files, 2018.
Police stations (2)
-
Defiance County Sheriff's OfficeDefiance
- Address
- 113 Biede Avenue, Defiance, OH 43512
- Coordinates
- 41.28588, -84.34312
USGS National Map structures (source) ↗ Street map and directions ↗
-
Defiance Police DepartmentDefiance
- Address
- 324 Perry Street, Defiance, OH 43512
- Coordinates
- 41.28673, -84.36406
USGS National Map structures (source) ↗ Street map and directions ↗
Source: USGS National Map structures, police stations, corrected and completed by hand (September 2026). The department that answers a call is set by jurisdiction, not by distance.
Public EV charging (4)
-
Estle Cadillac DC fast2 DC fast · Defiance
- Address
- 1515 N. Clinton St., Defiance, OH 43512
- Ports
- 2 DC fast
- Plugs
- CCS
- Network
- EV Connect
- Hours
- 24 hours daily
- Phone
- 866-816-7584
Station Locator (NREL) ↗ Alternative Fuels Data Center (source) ↗ Street map and directions ↗
-
EVPassport - FriendsOffice1 Level 2 · Defiance
- Address
- 1041 Perry St, Defiance, OH 45840
- Ports
- 1 Level 2
- Plugs
- J1772
- Network
- Non-Networked
- Hours
- 24 hours daily
- Price
- $0.35 per kWh
- Phone
- 888-702-2124
Station Locator (NREL) ↗ Alternative Fuels Data Center (source) ↗ Street map and directions ↗
-
Mark Moats Ford Inc1 Level 2 · Defiance
- Address
- 20793 County Rd 424, Defiance, OH 43512
- Ports
- 1 Level 2
- Plugs
- J1772
- Network
- Non-Networked
- Hours
- 24 hours daily
- Price
- Free
- Phone
- 419-784-5444
Station Locator (NREL) ↗ Alternative Fuels Data Center (source) ↗ Street map and directions ↗
-
Stykemain Buick GMC LTD. DC fast1 DC fast · Defiance
- Address
- 25124 Elliot Rd, Defiance, OH 43512
- Ports
- 1 DC fast
- Plugs
- CCS
- Network
- EV Connect
- Hours
- 24 hours daily
- Phone
- 866-816-7584
Station Locator (NREL) ↗ Alternative Fuels Data Center (source) ↗ Street map and directions ↗
Source: NREL Alternative Fuels Data Center station list (May 2026), public and open stations, the posts at one address counted as one site.
Superfund sites (3)
-
Defiance Precision Products SiteSuperfund program · Defiance
- Address
- 723 and 733 Perry Street, Defiance, OH 43512
- County
- Defiance County
- Status
- Superfund program site, not on the National Priorities List
- EPA program ID
- OHN000508905
- EPA registry ID
- 110071101964
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
-
Glycerin Traders LlcSuperfund program · Defiance
- Address
- 815 Greenler St, Defiance, OH 43512
- County
- Defiance County
- Status
- Superfund program site, not on the National Priorities List
- EPA program ID
- OHN000522240
- EPA registry ID
- 110004679786
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
-
Zeller 1Superfund program · Defiance
- Address
- 1307 Baltimore Street, Defiance, OH 43512
- County
- Defiance County
- Status
- Superfund program site, not on the National Priorities List
- EPA program ID
- OHN000509939
- EPA registry ID
- 110000383567
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
Source: EPA Facility Registry Service, Superfund (SEMS) and National Priorities List sites. Many program sites were assessed and needed no cleanup.
Facilities reporting toxic releases (12)
-
Defiance Metal Products CoToxics Release Inventory · Defiance
- Address
- 21 Seneca St, Defiance, OH 43512
- County
- Defiance County
- Status
- Reports to the Toxics Release Inventory
- EPA program ID
- 4351WDFNCM21SEN
- EPA registry ID
- 110004597829
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
-
Defiance Precision ProductsToxics Release Inventory · Defiance
- Address
- 1190 Precision Way, Defiance, OH 43512
- County
- Defiance County
- Status
- Reports to the Toxics Release Inventory (active)
- EPA program ID
- 43512DFNCP1190P
- EPA registry ID
- 110002346202
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
-
Defiance Stamping CoToxics Release Inventory · Defiance
- Address
- 1090 Perry St., Defiance, OH 43512
- County
- Defiance County
- Status
- Reports to the Toxics Release Inventory (active)
- EPA program ID
- 43512DFNCS1090P
- EPA registry ID
- 110002109637
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
-
Diehl IncToxics Release Inventory · Defiance
- Address
- 24 N. Clinton St., Defiance, OH 43512
- County
- Defiance County
- Status
- Reports to the Toxics Release Inventory (active)
- EPA program ID
- 43512DHLNC24NOR
- EPA registry ID
- 110001129430
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
-
Gt TechnologiesToxics Release Inventory · Defiance
- Address
- 1125 Precision Way, Defiance, OH 43512
- County
- Defiance County
- Status
- Reports to the Toxics Release Inventory (active)
- EPA program ID
- 43512DFNCP1125P
- EPA registry ID
- 110000383512
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
-
Johns Manville International Inc Plant No 8Toxics Release Inventory · Defiance
- Address
- 925 Carpenter Road, Defiance, OH 43512
- County
- Defiance County
- Status
- Reports to the Toxics Release Inventory (active)
- EPA program ID
- 43512MNVLLCARPE
- EPA registry ID
- 110000383549
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
-
Johns Manville Plant No 2Toxics Release Inventory · Defiance
- Address
- 408 Perry Street, Defiance, OH 43512
- County
- Defiance County
- Status
- Reports to the Toxics Release Inventory (active)
- EPA program ID
- 43512MNVLLTHIRD
- EPA registry ID
- 110000745739
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
-
Koester Metals, Inc.Toxics Release Inventory · Defiance
- Address
- 1441 Quality Dr., Defiance, OH 43512
- County
- Defiance County
- Status
- Reports to the Toxics Release Inventory (active)
- EPA program ID
- 43512KSTRM1441Q
- EPA registry ID
- 110000383530
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
-
Standridge Color CorpToxics Release Inventory · Defiance
- Address
- 1160 Integrity Dr, Defiance, OH 43512
- County
- Defiance County
- Status
- Reports to the Toxics Release Inventory (active)
- EPA program ID
- 43512STNDR116IN
- EPA registry ID
- 110025332691
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
-
Tessenderlo KerleyToxics Release Inventory · Defiance
- Address
- 1655 Quality Dr, Defiance, OH 43512
- County
- Defiance County County
- Status
- Reports to the Toxics Release Inventory (***unchanged***)
- EPA program ID
- 4351WTSSND1655Q
- EPA registry ID
- 110072215068
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
-
Tessenderlo Kerley IncToxics Release Inventory · Defiance
- Address
- 1655 Plummer Dr, Defiance, OH 43512
- County
- Defiance County
- Status
- Reports to the Toxics Release Inventory (***unchanged***)
- EPA program ID
- 4351WTSSND1655P
- EPA registry ID
- 110072053610
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
-
Zeller 1Toxics Release Inventory · Defiance
- Address
- 1307 Baltimore Street, Defiance, OH 43512
- County
- Defiance County
- Status
- Reports to the Toxics Release Inventory (active)
- EPA program ID
- 43512ZLLRC1307B
- EPA registry ID
- 110000383567
EPA facility record ↗ EPA Facility Registry Service (source) ↗ Street map and directions ↗
Source: EPA Facility Registry Service, Toxics Release Inventory reporters. Reporting a release is required of large users of listed chemicals; it is not by itself a violation.
Spills reported since 2021 (27)
-
Anhydrous Ammonia (Nh3)2025-10-02 · Defiance
- Reported
- 2025-10-02
- What spilled
- Anhydrous Ammonia (Nh3)
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2510EPA0001632
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Algae / Algae Bloom Reached water2025-08-16 · Defiance
- Reported
- 2025-08-16
- What spilled
- Algae / Algae Bloom
- Reached a waterway
- 20 - Maumee River
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2508EPA0001383
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Fuel Gasoline ( 25% Ethanol Not E85)2025-04-08 · Defiance
- Reported
- 2025-04-08
- What spilled
- Fuel Gasoline ( 25% Ethanol Not E85)
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2504EPA0000527
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Oil Transformer Non Pcb2024-05-23 · Defiance
- Reported
- 2024-05-23
- What spilled
- Oil Transformer Non Pcb
- Largest amount reported
- 40 gallons
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2405EPA0000861
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Oil Cutting /Cutting Oil / Coolant / Lubricant2024-04-09 · Defiance
- Reported
- 2024-04-09
- What spilled
- Oil Cutting /Cutting Oil / Coolant / Lubricant
- Largest amount reported
- 300 gallons
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2404EPA0000568
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Natural Gas Condensate / Condensate / Gas Condensate2024-03-20 · Defiance
- Reported
- 2024-03-20
- What spilled
- Natural Gas Condensate / Condensate / Gas Condensate
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2403EPA0000439
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Oil Hydraulic Fluid(S)2024-02-29 · Defiance
- Reported
- 2024-02-29
- What spilled
- Oil Hydraulic Fluid(S)
- Largest amount reported
- 200 gallons
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2402EPA0000314
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Other / All Other / Trade Name / Mixture / Solution Etc2023-12-21 · Defiance
- Reported
- 2023-12-21
- What spilled
- Other / All Other / Trade Name / Mixture / Solution Etc
- Largest amount reported
- 35 gallons
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2312EPA0002077
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Fuel Diesel / Diesel Fuel (Vehicle On Or Off Road)2023-07-10 · Defiance
- Reported
- 2023-07-10
- What spilled
- Fuel Diesel / Diesel Fuel (Vehicle On Or Off Road)
- Largest amount reported
- 200 gallons
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2307EPA0001141
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Sewage Human Reached water2023-06-16 · Defiance
- Reported
- 2023-06-16
- What spilled
- Sewage Human
- Reached a waterway
- 20 - Tiffin River
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2306EPA0000999
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Oil Crude2023-04-17 · Defiance
- Reported
- 2023-04-17
- What spilled
- Oil Crude
- Largest amount reported
- 165 gallons
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2304EPA0000611
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Oil Transformer Non Pcb2023-03-27 · Defiance
- Reported
- 2023-03-27
- What spilled
- Oil Transformer Non Pcb
- Largest amount reported
- 45 gallons
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2303EPA0000459
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Fuel Diesel / Diesel Fuel (Vehicle On Or Off Road)2023-01-05 · Defiance
- Reported
- 2023-01-05
- What spilled
- Fuel Diesel / Diesel Fuel (Vehicle On Or Off Road)
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2301EPA0000026
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Material Unknown Reached water2022-12-14 · Defiance
- Reported
- 2022-12-14
- What spilled
- Material Unknown
- Reached a waterway
- Maumee River
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2212EPA0001857
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Material Undetermined / Other2022-06-05 · Defiance Twp
- Reported
- 2022-06-05
- What spilled
- Material Undetermined / Other
- Largest amount reported
- 2,500 gallons
- Where
- Defiance Twp, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2206EPA0000837
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Other / All Other / Trade Name / Mixture / Solution Etc2022-03-09 · Defiance
- Reported
- 2022-03-09
- What spilled
- Other / All Other / Trade Name / Mixture / Solution Etc
- Largest amount reported
- 5,000 gallons
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2203EPA0000303
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Fuel Gasoline ( 25% Ethanol Not E85)2022-03-02 · Defiance
- Reported
- 2022-03-02
- What spilled
- Fuel Gasoline ( 25% Ethanol Not E85)
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2203EPA0000263
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Other / All Other / Trade Name / Mixture / Solution Etc2022-01-15 · Defiance
- Reported
- 2022-01-15
- What spilled
- Other / All Other / Trade Name / Mixture / Solution Etc
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2201EPA0000049
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Sheen Rainbow / Hydrocarbon Reached water2022-01-14 · Defiance
- Reported
- 2022-01-14
- What spilled
- Sheen Rainbow / Hydrocarbon
- Largest amount reported
- 6 gallons
- Reached a waterway
- 99 - Unnamed
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2201EPA0000047
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Material Unknown Reached water2021-10-27 · Defiance
- Reported
- 2021-10-27
- What spilled
- Material Unknown
- Reached a waterway
- 20 - Auglaize River
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2110EPA0001666
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Food Grade Product Liquid Reached water2021-10-15 · Defiance
- Reported
- 2021-10-15
- What spilled
- Food Grade Product Liquid
- Reached a waterway
- 20 - Maumee River
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2110EPA0001624
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Oil Crude Reached water2021-09-30 · Defiance
- Reported
- 2021-09-30
- What spilled
- Oil Crude
- Reached a waterway
- 20 - Auglaize River
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2109EPA0001549
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Fuel Diesel / Diesel Fuel (Vehicle On Or Off Road)2021-02-04 · Defiance
- Reported
- 2021-02-04
- What spilled
- Fuel Diesel / Diesel Fuel (Vehicle On Or Off Road)
- Largest amount reported
- 150 gallons
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2102EPA0000165
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Oil Transformer Non Pcb2026-04-06 · Defiance
- Reported
- 2026-04-06
- What spilled
- Oil Transformer Non Pcb
- Largest amount reported
- 50 gallons
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2604EPA0000577
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Oil Transformer Non Pcb2026-04-04 · Defiance
- Reported
- 2026-04-04
- What spilled
- Oil Transformer Non Pcb
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2604EPA0000572
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Sewage Human Reached water2026-03-31 · Defiance
- Reported
- 2026-03-31
- What spilled
- Sewage Human
- Reached a waterway
- 20 - Maumee River
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2603EPA0000530
Ohio EPA spill reports (source) ↗ Street map and directions ↗
-
Fuel Gasoline ( 25% Ethanol Not E85)2026-03-17 · Defiance
- Reported
- 2026-03-17
- What spilled
- Fuel Gasoline ( 25% Ethanol Not E85)
- Largest amount reported
- 25 gallons
- Where
- Defiance, Defiance County
- Ohio EPA district office
- NWDO
- Ohio EPA case number
- 2603EPA0000422
Ohio EPA spill reports (source) ↗ Street map and directions ↗
Source: Ohio EPA emergency response spill reports, 2021 to September 2026, one point per case where Ohio EPA placed it. A report is what the caller or responder recorded; amounts are often blank or estimated.
Its ZIP codes
Each ZIP code that touches Defiance, with the share of its residents who live here and the same headline figures as the ZIP page.
| ZIP | Share | Water | Radon | Home value | Schools | Flood |
|---|---|---|---|---|---|---|
| 43512 Defiance | 60% | Maumee River water pulled through two river intakes and stored in a 74-acre upground (off-channel) reservoir before treatment, near the Maumee/Auglaize/Tiffin River confluence at Defiance | 3.6 pCi/L average radon | Median year built 1964 | Defiance City · 4 stars overall | 4.2% of residents in the 1% floodplain |
Local government
Who holds office in Defiance, how its elections and ballot issues came out, and the state auditor's record.
Ballot issues
| Date | Issue | For | Against | Result |
|---|---|---|---|---|
| 2019-11-05 | Issue: PROPOSED CHARTER AMENDMENT City of Defiance | 1,627 | 637 | Passed (71.86% for) |
| 2019-11-05 | Issue: PROPOSED CHARTER AMENDMENT City of Defiance | 1,671 | 579 | Passed (74.27% for) |
| 2019-11-05 | Issue: PROPOSED CHARTER AMENDMENT City of Defiance | 1,721 | 539 | Passed (76.15% for) |
| 2019-11-05 | Issue: PROPOSED CHARTER AMENDMENT City of Defiance | 1,763 | 491 | Passed (78.22% for) |
Elections for office
| Date | Office | Candidates and votes |
|---|---|---|
| 2023-11-07 | Member of Council, Ward 4 | Chris Engel 782, 100.0% |
| 2023-11-07 | Member of Council, Ward 3 | Josh Mast 1,079, 100.0% |
| 2023-11-07 | Member of Council, Ward 2 | John R. Hancock 885, 100.0% |
| 2023-11-07 | Member of Council, Ward 1 | Stephen Corbitt 1,118, 100.0% |
| 2019-11-05 | Mayor | Mike McCann (REP) 1,829, 100.0% |
| 2015-11-03 | Ward 4 | Christopher L. Engel 780, 100.0% |
| 2015-11-03 | Ward 3 | Jake E. Oberlin 936, 100.0% |
| 2015-11-03 | Ward 2 | Joe L. Eureste 460, 39.62%; Steve Waxler 701, 60.38% |
| 2015-11-03 | Ward 1 | Peter M. Lundberg 814, 60.39%; Ronnie D. Posey 534, 39.61% |
| 2015-11-03 | School Board of Education (number of seats not on file, so winners are not marked) | Wesley C. Moats 2,716, 26.42%; Christine M. Oberlin 2,859, 27.81%; Garry Rodenberger 2,706, 26.32%; Jim Williams 1,999, 19.45% |
| 2015-11-03 | Mayor | Bob Armstrong 1,637, 32.71%; Brian Brown 667, 13.33%; Mike McCann 2,700, 53.96% |
Winners in bold. Results from the county board of elections' official canvass unless marked.
Auditor of State record
- No fiscal caution, watch or emergency on the Auditor of State's lists.
- Financial Health Indicators (the Auditor of State's 17 measures; critical / cautionary / positive): 2020 3 / 2 / 12; 2021 0 / 0 / 17; 2022 3 / 2 / 12; 2023 0 / 3 / 14; 2024 0 / 1 / 16; 2025 0 / 2 / 14.
- Financial Audit, 2024, released 2025-07-10
The county
Defiance County: 8 ZIP codes, 16 cities, villages and townships, 37,942 people.
Nearby places
Rain and snow
How much has actually fallen on Defiance, day by day, from 1893 to now. Daily totals, not averages.
- rain, last 30 days
- 1.68 in
- 2026-09-30 to 2026-10-29
- rain so far in 2026
- 33.9 in
- about normal for the date
- snow so far in 2026
- 21.4 in
- a normal year brings 25.9 in
- a normal year
- 38.1 in
- average of 30 years, 1991-2020
| Month | Rain (in) | Snow (in) | Days counted |
|---|---|---|---|
| October 2026 | 1.68 | — | 29 |
| September 2026 | 4.32 | — | 30 |
| August 2026 | 5.81 | — | 31 |
| July 2026 | 1.14 | — | 31 |
| June 2026 | 3.46 | — | 30 |
| May 2026 | 2.82 | — | 31 |
| April 2026 | 10.06 | — | 30 |
| March 2026 | 3.19 | — | 31 |
| February 2026 | 0.44 | 6.0 | 28 |
| January 2026 | 0.98 | 15.4 | 31 |
| December 2025 | 2.03 | 6.9 | 31 |
| November 2025 | 1.83 | 5.6 | 30 |
| Wettest year | 2011 — 57.3 in |
|---|---|
| Driest year | 1941 — 21.6 in |
| Snowiest year | 2014 — 69.3 in |
| Wettest day on record | 18 September 1907 — 4.63 in |
| Heaviest snowfall in a day | 28 February 1900 — 12.01 in |
| Deepest snow on the ground | 12 January 1918 — 22.01 in |
88% of these days are measurements from a gauge inside Defiance; the rest are estimated from the nearest gauges around it.
48,879 days of records, 1893-01-01 to 2026-10-29. Source: NOAA NCEI GHCN-Daily, 3,240 gauges in and around Ohio. A day is "gauged" when a gauge standing inside the boundary reported it, and the value is the mean of those gauges. Otherwise it is interpolated by inverse distance from every gauge reporting within 50 miles. Nothing is carried forward, back-filled or smoothed. Against NOAA nClimDiv county monthly precipitation over 136,848 complete county-months (checked 2026-10-31): correlation 0.9515, median absolute difference 0.217 in a month. Built 2026-10-31 from the Cracked Buckeye precipitation archive. Snow is the softer number — snowfall is measured by hand with a ruler, no agency publishes a gridded county snowfall series, and blowing snow defeats every observer.
Environmental permits and filings
What Ohio EPA has on file for Defiance: permits, inspections, violations, cleanups and the state loans behind sewer and water work. Every line links to the agency's own document.
- facilities and sites on file
- 84
- those placed on the map inside Defiance
Data centers, power and big tech here. Ohio EPA files that name a data-center company, a power plant or substation, or a large technology firm:
- AYERSVILLE 69 KV SUBSTATION (wastewater and stormwater discharge, latest Apr 29, 2026)
| Program | Facilities and sites |
|---|---|
| State sewer loans | 28 |
| Hazardous waste | 21 |
| Wastewater and stormwater discharge | 14 |
| Air pollution | 8 |
| Brownfield | 3 |
| State water loans | 3 |
| Sewer and water-line construction | 2 |
| Composting | 1 |
| Public drinking water | 1 |
| Scrap tires | 1 |
| Voluntary cleanup | 1 |
| Wetland and stream fill | 1 |
| Date | Facility or site | What |
|---|---|---|
| DEFIANCE CITY PWS | Public drinking water compliance letter | |
| JOHNS MANVILLE PLANT 8 | Air pollution inspection | |
| DEFIANCE CITY PWS | Public drinking water compliance letter | |
| DEFIANCE CITY PWS | Public drinking water compliance letter | |
| JOHNS MANVILLE PLANT 8 | Air pollution director's approval | |
| WHISPERING PINES TOWNHOUSE DEVELOPMENT | Wastewater and stormwater discharge permit | |
| WILDWOOD DRIVE DEVELOPMENT | Wastewater and stormwater discharge permit | |
| DEFIANCE CITY PWS | Public drinking water compliance letter | |
| DEFIANCE METAL PRODUCTS CO | Hazardous waste violation resolved | |
| DEFIANCE METAL PRODUCTS CO | Hazardous waste notice of violation | |
| SENSORY EFFECTS INC DBA BALCHEM INGREDIENTS SOL | Air pollution report | |
| DEFIANCE CITY PWS | Public drinking water director's approval | |
| FORT WINCHESTER INVESTMENTS 2 LLC - DECKED POWDER COATING | Wastewater and stormwater discharge permit | |
| RICHLAND STRYKER GENERATION LLC | Air pollution inspection | |
| DEFIANCE CITY PWS | Public drinking water plan | |
| DEFIANCE CITY PWS | Public drinking water compliance letter | |
| JOHNS MANVILLE PLANT 8 | Air pollution permit | |
| JOHNS MANVILLE PLANT 8 | Air pollution permit | |
| DEFIANCE WWTP | Composting inspection | |
| DEF-SR15-1358 RALSTON AVE ROUNDABOUTS PID 120036 | Wastewater and stormwater discharge permit | |
| DEFIANCE CITY PWS | Public drinking water report | |
| DEFIANCE WWTP | Composting report | |
| JOHNS MANVILLE PLANT 8 | Air pollution permit | |
| AYERSVILLE 69 KV SUBSTATION | Wastewater and stormwater discharge permit | |
| DEFIANCE COUNTY WPCLF HSTS ASSISTANCE PROGRAM | State sewer loans |
Source: Ohio EPA eDocument portal (edocpub.epa.ohio.gov), indexed 2026-10-14. Facilities are placed on the map from Ohio EPA's own map layers, EPA's Facility Registry, coordinates written in the filings, or a geocoded street address. A permit filed under a private person's name (most are household septic systems) is counted but never named, placed or linked; licenses for individual workers and open-burning notices are left out entirely.
Quick answers
What county is Defiance, Ohio in?
Defiance is a city in Defiance County, Ohio, with 17,066 residents.
When was Defiance, Ohio founded?
Defiance was settled 1794 (Fort Defiance, military); laid out 1822; incorporated 1881. Source
How did Defiance, Ohio get its name?
Named for Fort Defiance, built by Anthony Wayne's army in August 1794. Source
What ZIP code is Defiance, Ohio?
Most of Defiance is in ZIP code 43512.
Where does Defiance, Ohio get its water?
The main water source for Defiance (Defiance City): Maumee River water pulled through two river intakes and stored in a 74-acre upground (off-channel) reservoir before treatment, near the Maumee/Auglaize/Tiffin River confluence at Defiance.
Cite this page
Cite this page as:
Cracked Buckeye, "Defiance, Defiance County", https://crackedbuckeye.com/place/defiance/, built 2026-10-31, accessed [date].
How to cite · Report a correction · Built 2026-10-31

