Tallahassee is the capital of the U.S. state of Florida. It is the county seat and only incorporated municipality in Leon County, and is the 126th largest city in the United States. Tallahassee became the capital of Florida, then the Florida Territory, in 1824. In 2010, the population was 181,376, and the Tallahassee metropolitan area is 375,751 as of 2014. Tallahassee is the largest city in the Northwest Florida region.