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Where am ILOCATED

Preble County, Ohio

Preble County, Ohio, has 40,664 residents (July 2025 estimate). Its county seat is Eaton. It uses Eastern Time and covers 424 sq mi (1,099 km²) of land.

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Preble County in Ohio
Union CountyWayne CountyMontgomery CountyEatonLake LakengrenCamdenLewisburgNew Paris
Preble County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
40,664
Land area
424 sq mi (1,099 km²)
County seat or government
Eaton
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$69,223 ± $3,243
Median home value
$180,900 ± $7,668
Median rent, with utilities
$794 ± $39
Homes lived in by their owners
79.7% ± 2.1 points
County type
County
Metro or micro area
Outside any metro or micro areaNext to: Richmond, IN micro area, Dayton-Kettering-Beavercreek, OH metro area, Greenville, OH micro area, and Cincinnati, OH-KY-IN metro area
Water area
2.34 sq mi (6.06 km²)
State
Ohio
County code (FIPS)
39135
Coordinates (central point)
39.738810, -84.644758
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 Preble 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. 4504227,652 people
  2. 4532015,454 people
  3. 4530911,876 people
  4. 453279,315 people
  5. 453047,599 people
  6. 453115,701 people
  7. 453815,626 people
  8. 453384,761 people
  9. 453474,095 people
  10. 450643,373 people
  11. 453211,272 people
  12. 453821,154 people
All 16
  1. 45003839 people
  2. 45330710 people
  3. 45378539 people
  4. 45070142 people

16 ZIP Code areas overlap Preble 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

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Preble County, largest first

  1. Harrison Township4,278 people
  2. Gratis Township4,204 people
  3. Gasper Township3,895 people
  4. Somers Township3,802 people
  5. Lanier Township3,706 people
  6. Jefferson Township3,212 people
  7. Twin Township2,653 people
  8. Monroe Township2,345 people
  9. Washington Township1,622 people
  10. Jackson Township1,506 people
  11. Israel Township773 people
  12. Dixon Township430 people

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

School districts in Preble County, largest first

  1. Talawanda City School District36,027 people
  2. Edgewood City School District20,502 people
  3. Eaton Community City School District13,014 people
  4. Valley View Local School District10,626 people
  5. Preble Shawnee Local School District9,352 people
  6. Brookville Local School District9,117 people
  7. National Trail Local School District7,311 people
  8. Tri-County North Local School District5,816 people
  9. Twin Valley Community Local School District5,465 people
  10. College Corner Local School District599 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. Eaton, Ohio (city)8,339 people
  2. Lake Lakengren, Ohio (CDP)3,445 people
  3. Camden, Ohio (village)2,029 people
  4. Lewisburg, Ohio (village)1,927 people
  5. New Paris, Ohio (village)1,582 people
  6. West Alexandria, Ohio (village)1,340 people
  7. Eldorado, Ohio (village)841 people
  8. Gratis, Ohio (village)725 people
  9. Verona, Ohio (village)653 people
  10. College Corner, Ohio (village)429 people
  11. West Manchester, Ohio (village)341 people
  12. West Elkton, Ohio (village)148 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Union County, Indiana17 mi southwest
  2. Montgomery County, Ohio19 mi east
  3. Wayne County, Indiana21 mi northwest
  4. Butler County, Ohio21 mi south
  5. Darke County, Ohio27 mi north

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.