Calhoun County is a county located in the U.S. state of Florida. As of 2000, the population was 13,017. The U.S. Census Bureau 2006 estimate for the county was 13,410 [1]. Its county seat is Blountstown, Florida.

Calhoun County was created in 1838. It was named for John C. Calhoun, member of the United States Senate from South Carolina and the seventh U.S. vice president, serving under John Quincy Adams and Andrew Jackson. As is universal in the Florida Panhandle, a majority of Calhoun County's residents remain much more attached to Southern culture and lifestyle habits than is common in the Central and Southern regions of the state influenced by large amounts of migration, and the area holds much more in common with states such as Alabama, Georgia, or Mississippi than with much of Florida.

According to the 2000 census, the county has a total area of 574.34 square miles (1,487.5 km²), of which 567.31 square miles (1,469.3 km²) (or 98.78%) is land and 7.03 square miles (18.2 km²) (or 1.22%) is water. The county is bounded on the east by the Apalachicola River and is bisected by the Chipola River, site of Look and Tremble.

Florida (ⁱ/ˈflɒrɪdə/) is a state in the southeastern United States, bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. Florida is the 22nd most extensive, the 4th most populous, and the 8th most densely populated of the 50 United States. The state capital is Tallahassee, its largest city is Jacksonville, and the South Florida metropolitan area is the largest metropolitan area in the southeastern U.S.

Much of Florida is situated on a peninsula between the Gulf of Mexico, the Atlantic Ocean, and the Straits of Florida. Its geography is marked by a coastline, by the omnipresence of water and the threat of hurricanes. Florida has the longest coastline in the contiguous United States, encompassing approximately 1,350 miles (2,170 km), and is the only state to border both the Gulf of Mexico and the Atlantic Ocean. Much of the state is at or near sea level and its terrain is characterized by sedimentary soils. The climate varies from subtropical in the north to tropical in the south. Its symbolic animals like the American alligator, Florida panther and the manatee, can be found in the Everglades, one of the most famous national parks in the world.

Calhoun County is the name of several counties in the United States of America, mostly named after Senator John C. Calhoun: