County · code 39135
Preble CountyOhio
Preble County is a county in Ohio with its county seat in Eaton, formed in 1808.
- Founded1808
- County seatEaton
- Named forEdward Preble
- Land area424 sq mi + 2.3 sq mi water
- Population40,999 2020 Census
- Parcels mapped38,250 checked 14 October 2026
Where it is
Preble on the map of Ohio
Ohio has 88 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1808 from Butler County and Montgomery County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Preble County was created on March 1, 1808, from parts of Butler and Montgomery counties. The county is named after Edward Preble.
- 1808Preble County created Preble created from Butler and Montgomery. · Ohio Laws 1807, 6th assy., ch. 51, secs. 1-2, 5/pp. 164-166; Chase, 3:ch. 369/p. 2109
Land and parcels
What the maps cover in Preble
Who publishes each layer, how good it is, and when we last checked.
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Parcels Fallback
Lot lines and tax-map numbers for 38,250 parcels from Ohio Geographically Referenced Information Program (OGRIP, Ohio DAS) statewide compilation of county auditor parcels. Drawn for tax purposes: usually within a few feet of a survey, but not a survey. This copy is a fallback, not the county's own: use it as a guide and check the official record.
edited 23 September 2026 · checked 14 October 2026 -
Address points Official
One point per address, 19,904 in all from Ohio Geographically Referenced Information Program (OGRIP), Ohio DAS/OIT (state GIS office).
edited 24 June 2025 · checked 13 October 2026 -
Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Preble by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Who to ask before you build, dig or sell
Official county pages only. We link to them; we do not copy them, because they change.
Inside a city or town, permits usually come from that city rather than the county.
Records
Permits
Zoning and code
- Planning and zoning
Building & Grounds Maintenance
- Zoning Appeals
- Planning & Zoning
GIS and maps
County government
- County government
The official website of Preble County.
See your own lot on these maps
Open Preble County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Preble County
- When was Preble County founded?
- Preble County was founded in 1808, formed from Butler County and Montgomery County, and named after Edward Preble.
- What is the county seat of Preble County?
- The county seat of Preble County is Eaton.
- Is there an online parcel map for Preble County?
- Yes. Ohio Geographically Referenced Information Program (OGRIP, Ohio DAS) statewide compilation of county auditor parcels publishes a parcel map of 38,250 parcels, rated fallback here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Preble County's boundary or name changed?
- Preble County was created in 1808 from Butler County and Montgomery County. The Atlas of Historical County Boundaries records no boundary change since.
- Who issues building permits in Preble County?
- The county's page on building permits: Building and Zoning Fee Schedule (PDF). Inside a city or town, ask that city first.
- Is my lot in a flood zone?
- We do not have flood maps for Preble County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby