Adair County, Kentucky

Adair County: County in Kentucky, United States


Adair County is a county located in the U.S. state of Kentucky. As of the 2010 census, the population was 18,656 and a population density of 17 people per km². After 10 years in 2020 county had an estimated population of 19,555 inhabitants. Its county seat is Columbia. The county was created 221 years ago in 1801.

Quick Facts about Adair County

Population : 19,555 (2020)
Country : United States of America
State : Kentucky (United States)
Different from : Adair County, Adair County, Adair County
Area : 1068 km2
Water as percent of area : 1.7%
Land as percent of area : 98.3%
Named for : John Adair
Capital : Columbia
Establishment : December 12, 1801
Time Zone : Central Time Zone
Local time : 19:54:45 (1st June 2023)
Density : 18 Pop. per km² as of 2020
Population growth : 4.6% (2010-2020)
Adair County locator map
Location of Adair County on Kentucky map.
Adair County Kentucky courthouse image
Adair County Kentucky courthouse
Adair County Kentucky courthouse image


Adair County is located at 37°6'15"N 85°16'50"W (37.1041600, -85.2806500). It has 6 neighbors: Casey County, Cumberland County, Green County, Metcalfe County, Russell County and Taylor County.

Adair County map

The largest city of Adair County is Columbia with a population of 4,902. . See all Adair County cities & populated places.

Adair County Populated Places

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

City Name Population Title
Columbia 4,902 City in Adair County, Kentucky, United States

Adair County has 6 neighbours.

  • Columbia


The population of Adair County increased by 4.6% in 10 years.

Year Population % Change Method
2010 18,656 - census
2011 18,987 1.74% estimation process
2012 18,934 -0.28% estimation process
2013 19,124 0.99% estimation process
2014 19,262 0.72% estimation process
2015 19,162 -0.52% estimation process
2016 19,259 0.5% estimation process
2017 19,287 0.15% estimation process
2018 19,199 -0.46% estimation process
2019 19,202 0.02% estimation process
2020 19,555 1.81% estimation process

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People born in Adair County (5)

People born in Adair County, including politician Robert Porter Caldwell, burlesque performer Evelyn West, politician and educator Vernie McGaha, .


Other places with the same name (4)

Kentucky Other Counties (more counties)

County Name Population Title
Jefferson County 767,452 County in Alabama, United States
Louisville 760,026 County seat of Jefferson County, Kentucky, United States
Fayette County 324,735 County in West Virginia, United States
Lexington-Fayette 314,488 Consolidated city-county in Kentucky, United States
Meads 288,649 Unincorporated community in Boyd County, Kentucky
Ironville 288,649 Unincorporated community in Boyd County, Kentucky
Lexington 225,366 City in Fayette County, Kentucky, United States
Kenton County 167,949 County in Kentucky, United States
Boone County 135,396 County in Kentucky, United States
Warren County 134,510 County in Kentucky, United States
Hardin County 111,309 County in Tennessee, United States
Daviess County 101,978 County in Kentucky, United States
Madison County 94,265 County in Kentucky, United States
Campbell County 94,020 County in northeastern Wyoming, United States
Bullitt County 82,182 County in Kentucky, United States
Christian County 71,478 County in Missouri, United States