Calhoun County, Mississippi  Calhoun County is a county located in the U.S. state of Mississippi. As of the 2010 census, the population was 14,962. Its county seat is Pittsboro. The county is named after John C. Calhoun, the U.S. Vice President and U.S. Senator from South Carolina. According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.2%) is water. The Calhoun County Airport is a county-owned public-use airport located one nautical mile (1.2 mi, 1.9 km) southwest of the central business district of Pittsboro, Mississippi. As of the census of 2000, there were 15,069 people, 6,019 households, and 4,255 families residing in the county. The population density was 26 people per square mile (10/km²). There were 6,902 housing units at an average density of 12 per square mile (5/km²). The racial makeup of the county was 69.41% White or Caucasian, 28.65% Black or African American, 0.13% Native American, 0.06% Asian, 0.03% Pacific Islander, 1.11% from other races, and 0.59% from two or more races. 2.11% of the population were Hispanic or Latino of any race. According to the census of 2000, the largest ancestry groups in Calhoun County were English 64.4%, African 29% and Scots-Irish 4.5%  There were 6,019 households out of which 31.60% had children under the age of 18 living with them, 51.00% were married couples living together, 15.40% had a female householder with no husband present, and 29.30% were non-families. 27.10% of all households were made up of individuals and 13.90% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 2.97. In the county, the population was spread out with 25.20% under the age of 18, 8.40% from 18 to 24, 27.00% from 25 to 44, 22.70% from 45 to 64, and 16.70% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 90.70 males.