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Where am ILOCATED

Warren County, Ohio

Warren County, Ohio, has 257,181 residents (July 2025 estimate). Its county seat is Lebanon. It uses Eastern Time and covers 401 sq mi (1,040 km²) of land.

ColumbusClevelandCincinnati
Warren County in Ohio
Butler CountyClinton CountyMiddletownMasonLebanonSpringboroMonroe
Warren County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
257,181
Land area
401 sq mi (1,040 km²)
County seat or government
Lebanon
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$110,132 ± $2,685
Median home value
$349,400 ± $6,361
Median rent, with utilities
$1,361 ± $44
Homes lived in by their owners
79.4% ± 0.8 points
County type
County
Metro or micro area
Cincinnati, OH-KY-IN metro areaCentral county
Water area
6.07 sq mi (15.7 km²)
State
Ohio
County code (FIPS)
39165
Coordinates (central point)
39.425663, -84.169940
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Warren County

Time zoneLocal time and UTC offsetNext clock change
Eastern TimeAmerica/New_YorkUTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 4504059,518 people
  2. 4514057,211 people
  3. 4504456,217 people
  4. 4503642,204 people
  5. 4545838,712 people
  6. 4534236,152 people
  7. 4500532,251 people
  8. 4503928,335 people
  9. 4504227,652 people
  10. 4506627,545 people
  11. 4524123,955 people
  12. 4515214,850 people
All 24
  1. 4524914,490 people
  2. 4505012,248 people
  3. 4506811,597 people
  4. 4512210,977 people
  5. 453279,315 people
  6. 451079,190 people
  7. 450657,053 people
  8. 451133,877 people
  9. 451622,754 people
  10. 450542,693 people
  11. 45034968 people
  12. 45032683 people

24 ZIP Code areas overlap Warren County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address 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.

Townships in Warren County, largest first

  1. Deerfield Township42,241 people
  2. Clear Creek Township37,399 people
  3. Franklin Township32,364 people
  4. Hamilton Township31,938 people
  5. Turtlecreek Township17,832 people
  6. Wayne Township9,007 people
  7. Union Township6,437 people
  8. Salem Township5,423 people
  9. Harlan Township5,132 people
  10. Washington Township2,874 people
  11. Massie Township1,356 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Ohio, by county

School districts in Warren County, largest first

  1. Mason City School District55,241 people
  2. Middletown City School District51,096 people
  3. Princeton City School District43,145 people
  4. Lebanon City School District42,123 people
  5. Little Miami Local School District38,694 people
  6. Springboro Community City School District37,060 people
  7. Xenia Community City School District37,048 people
  8. Kings Local School District31,904 people
  9. Loveland City School District26,522 people
  10. Franklin City School District20,606 people
  11. Bellbrook-Sugarcreek Local School District17,385 people
  12. Goshen Local School District16,761 people
All 17
  1. Monroe Local School District15,775 people
  2. Clinton-Massie Local School District11,351 people
  3. Carlisle Local School District10,456 people
  4. Wayne Local School District9,926 people
  5. Blanchester Local School District8,796 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Middletown, Ohio (city)51,617 people
  2. Mason, Ohio (city)35,509 people
  3. Lebanon, Ohio (city)21,501 people
  4. Springboro, Ohio (city)19,980 people
  5. Monroe, Ohio (city)15,401 people
  6. Loveland, Ohio (city)13,197 people
  7. Franklin, Ohio (city)11,712 people
  8. Landen, Ohio (CDP)7,499 people
  9. South Lebanon, Ohio (city)6,712 people
  10. Carlisle, Ohio (city)5,543 people
  11. Blanchester, Ohio (village)4,538 people
  12. Hunter, Ohio (CDP)3,551 people
All 23
  1. Waynesville, Ohio (village)2,777 people
  2. Morrow, Ohio (village)2,523 people
  3. Maineville, Ohio (village)2,070 people
  4. Five Points, Ohio (CDP)2,031 people
  5. Loveland Park, Ohio (CDP)1,700 people
  6. Kings Mills, Ohio (CDP)1,175 people
  7. Harveysburg, Ohio (village)837 people
  8. Corwin, Ohio (village)753 people
  9. Roachester, Ohio (CDP)351 people
  10. Pleasant Plain, Ohio (village)190 people
  11. Butlerville, Ohio (village)178 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Clinton County, Ohio20 mi east
  2. Butler County, Ohio21 mi west
  3. Greene County, Ohio23 mi northeast
  4. Montgomery County, Ohio24 mi north
  5. Hamilton County, Ohio25 mi southwest
  6. Clermont County, Ohio26 mi south

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 where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.