Hamilton County is a county located in the north central portion of the U.S. state of Florida. As of the 2020 census, the population was 14,004, down from 14,799 at the 2010 census. Its county seat is Jasper. History Hamilton County was created in 1827 from portions of Jefferson County. It was named for Alexander Hamilton, first United States Secretary of the Treasury. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (1.0%) is water. It is the only county in Florida entirely north of Interstate 10. Adjacent counties Echols County, Georgia - north Columbia County - east Suwannee County - south Madison County - west Lowndes County, Georgia - northwest Major Highway Interstate 75 U.S. Route 41 U.S. Route 129 State Road 6 State Road 100 State Road 136 State Road 143 Politics Voter Registration According to the Secretary of State's Office, as of September 30, 2022 Republicans hold a plurality of registered voters in Hamilton County for the first time in over a century. The county has radically shifted from being a Democratic stronghold to becoming a Republican one during the 21st century. Demographics 2020 census As of the 2020 United States census, there were 14,004 people, 4,381 households, and 3,082 families residing in the county. 2000 census As of the census of 2000, there were 13,327 people, 4,161 households, and 2,995 families residing in the county. The population density was 26 people per square mile (10/km2). There were 4,966 housing units at an average density of 10 per square mile (4/km2). The racial makeup of the county was 58.79% White, 37.72% Black or African American, 0.42% Native American, 0.20% Asian, 0.02% Pacific Islander, 1.69% from other races, and 1.17% from two or more races. 6.36% of the population were Hispanic or Latino of any race. There were 4,161 households, out of which 32.90% had children under the age of 18 living with them, 50.30% were married couples living together, 16.80% had a female householder with no husband present, and 28.00% were non-families. 24.10% of all households were made up of individuals, and 9.10% had someone living alone who was 65 years of age or older. The average household size was 2.60 and the average family size was 3.07. In the county, the population was spread out, with 23.50% under the age of 18, 10.80% from 18