Warren County, Ohio
Warren County is a county in Ohio. Its county FIPS code is 39165. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 39165
- Representative coordinates
- 39.425663, -84.169940
- County type
- County
- County seat or government
- Lebanon
- Resident population, July 2025
- 257,181
- Land area
- 1,039.659 km²
- Water area
- 15.712 km²
- State
- Ohio
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Warren County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| America/New_York | UTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Listed zones overlap the mapped area. A point lookup can distinguish sides of a boundary. Your device’s zone may differ.
Census ZIP areas
45005 · 45032 · 45034 · 45036 · 45039 · 45040 · 45042 · 45044 · 45050 · 45054 · 45065 · 45066 · 45068 · 45107 · 45113 · 45122 · 45140 · 45152 · 45162 · 45241 · 45249 · 45327 · 45342 · 45458
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details with USPS ZIP Code Lookup.
Official county information
Warren County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Cities, towns and communities
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Blanchester village, OH
- Butlerville village, OH
- Carlisle city, OH
- Corwin village, OH
- Five Points CDP, OH
- Franklin city, OH
- Harveysburg village, OH
- Hunter CDP, OH
- Kings Mills CDP, OH
- Landen CDP, OH
- Lebanon city, OH
- Loveland city, Ohio
- Loveland Park CDP, OH
- Maineville village, OH
- Mason city, OH
- Middletown city, OH
- Monroe city, OH
- Morrow village, OH
- Pleasant Plain village, OH
- Roachester CDP, OH
- South Lebanon city, OH
- Springboro city, OH
- Waynesville village, OH
Areas sharing the mapped boundary
These areas touch this mapped boundary.
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county at your current point, check its ZIP area, or find its physical time zone.