Fairfield County, Ohio

Fairfield County: County in Ohio, United States


Fairfield County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 146,156 and a population density of 111 people per km². After 10 years in 2020 county had an estimated population of 159,709 inhabitants. Its county seat is Lancaster. The county was created 222 years ago in 1800.

Quick Facts about Fairfield County

Population : 159,709 (2020)
Country : United States of America
State : Ohio (United States)
Different from : Fairfield County, Fairfield County
Twitter username : fairfieldco
Plate code : 23
Area : 1317 km2
Water as percent of area : 0.8%
Land as percent of area : 99.2%
Capital : Lancaster
Establishment : December 12, 1800
Time Zone : America/New_York
Local time : 08:33:49 (5th June 2023)
Density : 121 Pop. per km² as of 2020
Population growth : 8.49% (2010-2020)
Fairfield County locator map
Location of Fairfield County on Ohio map.
Fairfield County 'Ohio' Courhouse image
Fairfield County 'Ohio' Courhouse
Fairfield County 'Ohio' Courhouse image


Fairfield County is located at 39°45'6"N 82°37'50"W (39.7516000, -82.6305900). It has 4 neighbors: Hocking County, Perry County, Pickaway County and Licking County.

Fairfield County map

The largest city of Fairfield County is Lancaster with a population of 40,932. Other cities include, Pickerington population 22,835, Geneva population 5,899, Waterloo population 2,605 and Lithopolis population 1,916. See all Fairfield County cities & populated places.

Fairfield County Populated Places (more)

Cities, Towns, Neighborhoods & Other Populated Places in Fairfield County.

City Name Population Title
Lancaster 40,932 City in Fairfield County, Ohio, United States
Pickerington 22,835 City in Fairfield and Franklin counties, Ohio, United States
Geneva 5,899 City in Ashtabula County, Ohio, United States
Baltimore 3,026 Village in Ohio, United States
Waterloo 2,605 Human settlement in Ohio, United States
Carroll 2,073 Village in Fairfield County, Ohio, United States
Lithopolis 1,916 Human settlement in Ohio, United States of America
Jefferson 1,821 County in Ohio, United States
Bremen 1,466 Town in Ohio, United States
Royalton 1,454 Human settlement in Ohio, United States of America
Fairfield Beach 1,292 Census-designated place in Fairfield County, Ohio
Pleasant Hill 1,258 Human settlement in Miami County, Ohio, United States of America
Millersport 1,081 Human settlement in Fairfield County, Ohio, United States of America
Pleasantville 963 Village in Fairfield County, Ohio
Amanda 746 Town
Thurston 607 Place in Ohio

Fairfield County has 4 neighbours.


The population of Fairfield County increased by 8.49% in 10 years.

Year Population % Change Method
2010 146,156 - census
2011 147,174 0.69% estimation process
2012 147,301 0.09% estimation process
2013 148,796 1% estimation process
2014 150,360 1.04% estimation process
2015 151,254 0.59% estimation process
2016 152,789 1% estimation process
2017 154,686 1.23% estimation process
2018 155,982 0.83% estimation process
2019 157,574 1.01% estimation process
2020 159,709 1.34% estimation process

Comitatul Fairfield, Comte de Fairfield, Comté de Fairfield, Condado de Fairfield, Condado han Fairfield, Contea di Fairfield, Fairfield, Fairfield Comitatus, Fairfield Kun, Fairfield Kūn, Fairfield konderria, Fairfield megye, Fairfieldin piirikunta, Fehrfild, Ferfild, Feurfijld, Hrabstwo Fairfield, Okrug Ferfild, Quan Fairfield, Quận Fairfield, feafirudo jun, fei er fei er de xian, mqatʿt fyrfyld, pheyaraphilda ka'unti, shhrstan fyrfyld awhayw, Округ Ферфилд, Ферфілд, Феърфийлд, Фэрфилд, شهرستان فیرفیلد، اوهایو, فیئرفیلڈ کاؤنٹی، اوہائیو, فیرفیلڈ کاؤنٹی، اوہائیو, مقاطعة فيرفيلد, ফেয়ারফিল্ড কাউন্টি, フェアフィールド郡, 費爾菲爾德縣

People born in Fairfield County (10)

People born in Fairfield County, including politician George Washington Glick, philanthropist Eleanor Sherman Thackara, Union United States Army officer Hoyt Sherman, .


  • Festus Walters (American judge) he was born in 30/09/1849
  • Jacob Parrott (United States Army Medal of Honor recipient) he was born in 17/07/1843
  • Moses B. Walker (Union Army general) he was born in 16/07/1819
  • Fred L. Walker (U.S. Army general) he was born in 11/06/1887
  • Samuel Jackson Swartz (former mayor of Columbus, Ohio) he was born in 08/02/1859
  • James A. Lantz (American politician) he was born in 15/09/1921
  • Tullius Clinton O'Kane (hymnwriter) he was born in 10/03/1830

Other places with the same name (3)

Ohio Other Counties (more counties)

County Name Population Title
Franklin County 1,324,624 County in Massachusetts, United States
Cuyahoga County 1,227,883 County in Ohio, United States
Columbus 884,356 Capital city of Ohio, United States
Hamilton County 817,985 County in New York, United States
Summit County 538,866 County in northern Utah, United States
Montgomery County 531,610 County in Ohio, United States
Lucas County 428,294 County in Ohio, United States
Butler County 385,648 County in Ohio, United States of America
Cleveland 378,589 City in Ohio, United States
Stark County 369,772 County in Ohio, United States
Lorain County 312,172 County in Ohio, United States
Cincinnati 304,548 City in Ohio, United States; county seat of Hamilton County
Toledo 271,455 County seat of Lucas County, Ohio, United States
Warren County 238,412 County in New York, United States
Lake County 229,569 County in Ohio, United States
Mahoning County 226,075 County in Ohio, United States