Hartsville is a town in Haw Creek and Clifty townships, Bartholomew County, Indiana, United States. The population was 362 at the 2010 census. It is part of the Columbus, Indiana metropolitan statistical area. History Hartsville was founded in 1832. It was named for Gideon B. Hart, a pioneer settler. The first post office at Hartsville was established in 1838. Geography Hartsville is located at (39.267039, -85.698689). According to the 2010 census, Hartsville has a total area of , all land. Demographics 2010 census As of the census of 2010, there were 362 people, 132 households, and 98 families living in the town. The population density was . There were 148 housing units at an average density of . The racial makeup of the town was 97.0% White, 1.1% African American, and 1.9% from two or more races. Hispanic or Latino of any race were 1.1% of the population. There were 132 households, of which 39.4% had children under the age of 18 living with them, 57.6% were married couples living together, 12.1% had a female householder with no husband present, 4.5% had a male householder with no wife present, and 25.8% were non-families. 20.5% of all households were made up of individuals, and 12.8% had someone living alone who was 65 years of age or older. The average household size was 2.74 and the average family size was 3.16. The median age in the town was 36.5 years. 26.8% of residents were under the age of 18; 8.2% were between the ages of 18 and 24; 26.1% were from 25 to 44; 26.1% were from 45 to 64; and 12.7% were 65 years of age or older. The gender makeup of the town was 47.0% male and 53.0% female. 2000 census As of the census of 2000, there were 376 people, 137 households, and 103 families living in the town. The population density was . There were 146 housing units at an average density of . The racial makeup of the town was 98.67% White, 0.53% Native American, 0.27% Pacific Islander, 0.27% from other races, and 0.27% from two or more races. Hispanic or Latino of any race were 1.86% of the population. There were 137 households, out of which 35.8% had children under the age of 18 living with them, 60.6% were married couples living together, 7.3% had a female householder with no husband present, and 24.1% were non-families.