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Where am ILOCATED

Fairfield County, Ohio

Fairfield County, Ohio, has 169,752 residents (July 2025 estimate). Its county seat is Lancaster. It uses Eastern Time and covers 504 sq mi (1,306 km²) of land.

ColumbusClevelandCincinnati
Fairfield County in Ohio
Perry CountyPickaway CountyLancasterPickeringtonCanal Winchester
Fairfield County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
169,752
Land area
504 sq mi (1,306 km²)
County seat or government
Lancaster
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$90,966 ± $2,392
Median home value
$298,800 ± $5,981
Median rent, with utilities
$1,172 ± $29
Homes lived in by their owners
74.9% ± 1.2 points
County type
County
Metro or micro area
Columbus, OH metro areaCentral county
Water area
4.2 sq mi (10.9 km²)
State
Ohio
County code (FIPS)
39045
Coordinates (central point)
39.747694, -82.626685
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 Fairfield 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. 4313062,933 people
  2. 4306860,148 people
  3. 4314746,963 people
  4. 4311043,544 people
  5. 4306232,037 people
  6. 4311324,480 people
  7. 4310313,130 people
  8. 430769,456 people
  9. 431058,982 people
  10. 431124,909 people
  11. 431073,791 people
  12. 431023,711 people
All 19
  1. 431543,367 people
  2. 430462,946 people
  3. 431552,361 people
  4. 431502,300 people
  5. 431362,216 people
  6. 431481,898 people
  7. 43157597 people

19 ZIP Code areas overlap Fairfield 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 Fairfield County, largest first

  1. Violet Township48,117 people
  2. Lancaster City Township41,151 people
  3. Bloom Township10,759 people
  4. Liberty Township8,395 people
  5. Walnut Township6,763 people
  6. Pleasant Township6,267 people
  7. Greenfield Township5,836 people
  8. Berne Township5,096 people
  9. Hocking Township4,896 people
  10. Clearcreek Township4,125 people
  11. Rush Creek Township4,040 people
  12. Amanda Township2,720 people
All 14
  1. Richland Township2,611 people
  2. Madison Township1,516 people

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

School districts in Fairfield County, largest first

  1. Pickerington Local School District58,052 people
  2. Lancaster City School District50,491 people
  3. Reynoldsburg City School District43,659 people
  4. Southwest Licking Local School District28,669 people
  5. Teays Valley Local School District26,370 people
  6. Canal Winchester Local School District22,902 people
  7. Northern Local School District14,777 people
  8. Bloom-Carroll Local School District13,068 people
  9. Fairfield Union Local School District10,652 people
  10. Amanda-Clearcreek Local School District8,352 people
  11. Liberty Union-Thurston Local School District7,784 people
  12. Berne Union Local School District4,923 people
All 13
  1. Walnut Township Local School District4,198 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. Columbus, Ohio (city)914,802 people
  2. Lancaster, Ohio (city)41,249 people
  3. Reynoldsburg, Ohio (city)41,224 people
  4. Pickerington, Ohio (city)24,477 people
  5. Canal Winchester, Ohio (city)10,170 people
  6. Baltimore, Ohio (village)3,050 people
  7. Buckeye Lake, Ohio (village)2,525 people
  8. Lithopolis, Ohio (village)2,522 people
  9. Bremen, Ohio (village)2,001 people
  10. Fairfield Beach, Ohio (CDP)1,432 people
  11. Pleasantville, Ohio (village)908 people
  12. Millersport, Ohio (village)838 people
All 22
  1. Stoutsville, Ohio (village)647 people
  2. Hide-A-Way Hills, Ohio (CDP)646 people
  3. Thurston, Ohio (village)597 people
  4. Carroll, Ohio (village)595 people
  5. Amanda, Ohio (village)541 people
  6. Hamburg, Ohio (CDP)461 people
  7. Sugar Grove, Ohio (village)402 people
  8. Rushville, Ohio (village)294 people
  9. Tarlton, Ohio (village)261 people
  10. West Rushville, Ohio (village)212 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Hocking County, Ohio19 mi southeast
  2. Perry County, Ohio21 mi east
  3. Pickaway County, Ohio24 mi west
  4. Licking County, Ohio25 mi north
  5. Franklin County, Ohio25 mi northwest

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.