Brookville is a town in Brookville Township, Franklin County, Indiana, United States. The population was 2,625 at the 2000 census. The town is the county seat of Franklin County. As of the census of 2000, there were 2,652 people, 1,145 households, and 683 families residing in the town. The population density was 1,982.4 people per square mile (764.1/km²). There were 1,276 housing units at an average density of 953.8/mi² (367.7/km²). The racial makeup of the town was 98.91% White, 0.04% African American, 0.19% Native American, 0.34% Asian, 0.19% from other races, and 0.34% from two or more races. Hispanic or Latino of any race were 0.53% of the population.