The story
Local history for this place is being researched county by county outward from Franklin County; here is what the records say.
Water
Groundwater from 8 wells across 3 wellfields in the glacial sand-and-gravel aquifer near Eaton; all wells feed one blended municipal treatment and distribution system The water here
- Eaton Public Water System70% of residentsSand and gravel (Pleistocene) aquifer wells, Preble County
- Lakengren Water Authority29% of residentsGroundwater wells (3 wells)
- Eldorado, Village Of1% of residentsGroundwater wells (2 wells)
- Gratis Village0% of residentsGroundwater wells (2 wells)
Its ZIP codes
Each ZIP code that touches Washington Township, Preble County, 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 |
|---|---|---|---|---|---|---|
| 45320 Eaton | 12% | Groundwater from 8 wells across 3 wellfields in the glacial sand-and-gravel aquifer near Eaton; all wells feed one blended municipal treatment and distribution system | 3.7 pCi/L average radon | Parcel list only | Eaton Community Schools City · 4 stars overall | 1.5% of residents in the 1% floodplain |
| 45321 Eldorado | 2% | Groundwater wells (2 wells) | 3.1 pCi/L average radon | Parcel list only | National Trail Local · 3.5 stars overall | 0.0% of residents in the 1% floodplain |
The county
Preble County: 12 ZIP codes, 23 cities, villages and townships, 43,242 people.
Nearby places
Cite this page
Cite this page as:
Cracked Buckeye (Open Shower Co), "Washington Township, Preble County", https://crackedbuckeye.com/place/washington-township-preble-county/, built 2026-09-16, accessed [date].
Machine-readable: /api/place/washington-township-preble-county.json (open JSON, CC BY 4.0 for the compilation; the underlying records keep their own terms) · How to cite · Report a correction · Built 2026-09-16