2,000. Most of Jasper's present buildings were built during this 40-year period. Since the 1920s Jasper has seen many economic changes. The leading cotton industry gave way to the turpentine industry, turpentine to lumber, lumber to tobacco, and finally tobacco to phosphate mining. The completion of Interstate 75 in the late 1950s caused further decline as tourists and shipping bypassed the town. In 2002 town officials extended the city limits and infrastructure to the intersection of US 129 and Interstate 75, and built infrastructure (water and sewer) with the help of county officials to the Hamilton County Industrial Park along US 41 in order to encourage economic growth and development. Since that time several new businesses have moved into the area, and the new high school has been built along the route. The large jump in population between 2000 (1,780) and 2010 (4,546) was due to the incorporation of land containing the Hamilton County Correctional Facility into the city limits. The first settlement in Hamilton County was called Micco Town or more accurately Hala-at-aha Micco which is interpreted as "Chief of the Miccosukee"; therefore, it is strongly believed to have been the home of Chief Billy Bowlegs who signed the Treaty of Moultrie, 1823. Demographics 2020 census As of the 2020 United States census, there were 3,621 people, 703 households, and 450 families residing in the city. 2000 census As of the census of 2000, there were 1,780 people, 742 households, and 488 families residing in the city. The population density was . There were 878 housing units at an average density of . The racial makeup of the city was 52.25% White, 45.67% African American, 0.06% Native American, 0.28% Asian, 0.73% from other races, and 1.01% from two or more races. Hispanic or Latino of any race were 3.09% of the population. There were 742 households, out of which 28.4% had children under the age of 18 living with them, 37.7% were married couples living together, 23.5% had a female householder with no husband present, and 34.2% were non-families. 31.5% of all households were made up of individuals, and 15.0% had someone living alone who was 65 years of age or older. The average household size was 2.40 and the average family size was 3.01. In the city, the population was spread out, with 29.3% under the age of 18, 8.3% from 18 to 24, 23.3% from 25 to