Counties
Ohio's 88 counties
11,900,510 people in the Census Bureau's July 2025 estimates · 1,233 ZIP codes · 2,232 cities, villages and townships
Ohio keeps many of its records county by county: health rankings, cancer and overdose counts, jobs and wages, storms and drought, air and water. Each county page gathers them in numbers, then lists the county's places and ZIP codes.
All 88, A to Z
The small number is the July 2025 population estimate.
- Adams County27,865
- Allen County100,881
- Ashland County52,523
- Ashtabula County96,713
- Athens County63,197
- Auglaize County45,909
- Belmont County64,434
- Brown County44,397
- Butler County400,128
- Carroll County26,475
- Champaign County38,820
- Clark County135,340
- Clermont County216,977
- Clinton County42,301
- Columbiana County99,377
- Coshocton County37,188
- Crawford County41,896
- Cuyahoga County1,232,925
- Darke County51,520
- Defiance County38,292
- Delaware County242,032
- Erie County73,296
- Fairfield County169,752
- Fayette County28,552
- Franklin County1,361,536
- Fulton County41,853
- Gallia County29,072
- Geauga County95,676
- Greene County174,322
- Guernsey County38,379
- Hamilton County838,418
- Hancock County75,034
- Hardin County30,072
- Harrison County14,070
- Henry County27,598
- Highland County43,823
- Hocking County27,512
- Holmes County44,970
- Huron County58,250
- Jackson County32,817
- Jefferson County63,597
- Knox County64,002
- Lake County232,217
- Lawrence County55,710
- Licking County185,564
- Logan County46,302
- Lorain County323,219
- Lucas County423,347
- Madison County46,985
- Mahoning County224,706
- Marion County65,115
- Medina County185,025
- Meigs County21,587
- Mercer County42,737
- Miami County112,634
- Monroe County12,994
- Montgomery County539,598
- Morgan County13,626
- Morrow County36,305
- Muskingum County87,014
- Noble County14,276
- Ottawa County39,481
- Paulding County18,727
- Perry County35,918
- Pickaway County62,978
- Pike County27,061
- Portage County163,404
- Preble County40,664
- Putnam County34,380
- Richland County124,893
- Ross County76,429
- Sandusky County58,655
- Scioto County71,365
- Seneca County54,522
- Shelby County48,065
- Stark County373,771
- Summit County538,376
- Trumbull County198,972
- Tuscarawas County92,373
- Union County73,446
- Van Wert County29,013
- Vinton County12,645
- Warren County257,181
- Washington County58,389
- Wayne County116,758
- Williams County36,549
- Wood County134,176
- Wyandot County21,567
By population
Source: Census Bureau Population Estimates Program, vintage 2025 · Census population estimates. A ZIP code is placed in the county where most of its residents live; a city, village or township in the county holding most of its ZIP residents.
Cite and data
Cite this page as:
Ohio Hometown Atlas (Open Shower Co), "Ohio's 88 counties", https://hometownatlas.openshowerco.com/county/, built 2026-09-15, accessed [date].
Machine-readable: /api/counties.json (open JSON, CC BY 4.0 for the compilation; the underlying records keep their own terms) · How to cite · Report a correction · Built 2026-09-15