Brookville is a town in Brookville Township, Franklin County, Indiana, United States. The population was 2,596 at the 2010 census. The town is the county seat of and the largest community entirely within Franklin County. History Brookville was platted in 1808 by Thomas Manwarring. The town derives its name from Brooks, the maiden name of a settler's mother. A post office has been in operation at Brookville since 1816. The Brookville Historic District, Franklin County Seminary, The Hermitage, and Whitewater Canal Historic District are listed on the National Register of Historic Places. Geography Brookville is located at (39.422328, -85.009509). It contains the confluence of the East and West forks of the Whitewater River; the East Fork forms a portion of the eastern boundary of the town. Brookville is also at the southern end of Brookville Lake, impounded in 1974 by the United States Army Corps of Engineers. According to the 2010 census, Brookville has a total area of , of which (or 97.4%) is land and (or 2.6%) is water. Climate The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen Climate Classification system, Brookville has a humid subtropical climate, abbreviated "Cfa" on climate maps. Demographics 2010 census As of the census of 2010, there were 2,596 people, 1,160 households, and 673 families living in the town. The population density was . There were 1,307 housing units at an average density of . The racial makeup of the town was 97.5% White, 0.3% African American, 0.3% Native American, 0.2% Asian, 0.8% from other races, and 0.9% from two or more races. Hispanic or Latino of any race were 1.6% of the population. There were 1,160 households, of which 29.2% had children under the age of 18 living with them, 39.4% were married couples living together, 12.7% had a female householder with no husband present, 5.9% had a male householder with no wife present, and 42.0% were non-families. 37.8% of all households were made up of individuals, and 20.7% had someone living alone who was 65 years of age or older. The average household size was 2.24 and the average family size was 2.91. The median age in the town was 39.6 years. 24.1% of residents were under the age of 18; 9.2% were between the ages of 18 and 24; 22.4% were from 25 to 44; 24% were from