Columbia is a city in and the county seat of Maury County, Tennessee, United States. The population was 34,681 at the 2010 census and in 2019 the population was 40,335. Columbia is included in the Nashville metropolitan area.
The self-proclaimed "mule capital of the world," Columbia annually celebrates the city-designated Mule Day each April. Columbia and Maury County are acknowledged as the "Antebellum Homes Capital of Tennessee"; the county has more antebellum houses than any other county in the state. The city is home to one of the last two surviving residences of James Knox Polk, the 11th President of the United States; the other is the White House.