Adair County, Kentucky

Adair County
Adair County
County
	Adair County Courthouse in Columbia
	Location within the U.S. state of Kentucky
	Kentucky's location within the U.S.
	Coordinates: 37°07′N 85°17′W / 37.11°N 85.28°W
Country	United States
State	Kentucky
Founded	1801
Named for	John Adair
Seat	Columbia
Largest city	Columbia
Area
• Total	412 sq mi (1,070 km2)
• Land	405 sq mi (1,050 km2)
• Water	7.1 sq mi (18 km2) 1.7%
Population (2020)
• Total	18,903
• Estimate (2023)	19,264
• Density	46/sq mi (18/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	1st
Website	www.columbia-adaircounty.com

Adair County is a county located in the U.S. state of Kentucky. As of the 2020 census, the population was 18,903.^[1] Its county seat and only municipality is Columbia.^[2] The county was founded in 1801 and named for John Adair, then Speaker of the House in Kentucky and later Governor of Kentucky (1820 – 1824).^[3] Adair County has some of the few surviving American Chestnut trees in the United States.^[4]^[5]

^ "State & County QuickFacts". United States Census Bureau. Retrieved February 24, 2023.
^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
^ Adair County Government (June 6, 2007). "Kentucky: Adair County – Overview". Commonwealth of Kentucky. Archived from the original on March 4, 2016. Retrieved November 10, 2011.
^ "State's largest historic Chestnut tree stands on an Adair County farm.", Columbia Magazine, June 17, 2005; Retrieved October 5, 2015.
^ Flavell, John. "American tale: Bringing back the perfect tree.", Daily Independent, July 24, 2009.