Liberty is a town in Center Township, Union County, Indiana, United States of America. The population was 2,000 at the 2020 census. It is the county seat of Union County. History The Liberty post office has been in operation since 1824. The Liberty Courthouse Square Historic District, Liberty Residential Historic District, and Union County Courthouse are listed on the National Register of Historic Places. Geography According to the 2010 census, Liberty has a total area of , all of it land. Demographics 2010 census As of the census of 2010, there were 2,133 people, 832 households, and 558 families living in the town. The population density was . There were 930 housing units at an average density of . The racial makeup of the town was 96.8% White, 0.8% African American, 0.3% Native American, 0.4% Asian, 0.1% Pacific Islander, 0.8% from other races, and 0.9% from two or more races. Hispanic or Latino people of any race were 1.5% of the population. There were 832 households, of which 39.1% had children under the age of 18 living with them, 44.1% were married couples living together, 18.1% had a female householder with no husband present, 4.8% had a male householder with no wife present, and 32.9% were non-families. 28.8% of all households were made up of individuals, and 12.7% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.06. The median age in the town was 34.7 years. 28.6% of residents were under the age of 18; 8.3% were between the ages of 18 and 24; 24.7% were from 25 to 44; 23.6% were from 45 to 64; and 14.6% were 65 years of age or older. The gender makeup of the town was 46.6% male and 53.4% female. 2000 census As of the census of 2000, there were 2,061 people, 858 households, and 548 families living in the town. The population density was . There were 916 housing units at an average density of . The racial makeup of the town was 98.30% White, 0.39% African American, 0.29% Native American, 0.19% Asian, 0.19% from other races, and 0.63% from two or more races. Hispanic or Latino people of any race were 0.44% of the population. There were 858 households, out of which 30.8% had children under the age of 18 living with them, 48.8% were