Franklin is a city in Johnson County, Indiana, United States. The population was 23,712 at the 2010 census. Located about 20 miles south of Indianapolis, the city is the county seat of Johnson County. It was named after Benjamin Franklin. The site of Franklin College, the city attracts numerous regional sports fans for the college teams, as well as audiences for its art events.
Franklin is located at 39°29′23″N 86°3′24″W / 39.48972°N 86.05667°W / 39.48972; -86.05667 (39.489585, -86.056784), 20 miles (32 km) south of Indianapolis and 90 miles (140 km) north of Louisville, Kentucky, on I-65 and U.S. 31.
According to the United States Census Bureau, the city has a total area of 11.3 square miles (29 km2), all of it land.