The city of Franklin began as a village around 1770, and became a city, and county seat of Heard County, on December 26, 1831. The Heard County Historical Center and Museum, built in 1912, is the headquarters for the Historical Society. The history of the county is depicted in exhibits at the Heard County Historical Center, or "Old Jail," which served as the county jail and sheriff's residence from 1912 to 1964. The museum offers a look into the past of this rural community. A major exhibit is dedicated to local personality Mahayley Lancaster. This legendary psychic is most remembered for her role in the murder trial of John Wallace which later became a best-selling book and movie, "Murder in Coweta County."
The Heard County Chamber of Commerce sponsors A Taste of a Chattahoochee Christmas in December and A Chattahoochee Independence Day in July. Powers' Crossroads Country Fair and Arts Festival, which is a national event each Labor Day weekend, is located at the Heard-Coweta line.