Jonesboro is a city in Clayton County, Georgia, United States. The population was 4,724 as of the 2010 census. The city is the county seat of Clayton County.
Jonesboro was founded as Leaksville in 1823. In 1846, the Macon and Western Railroad arrived into the area and the town was renamed in honor of railroad official Samuel G. Jones.Jonesboro was incorporated in 1859. The city's name was originally spelled Jonesborough. During the Civil War, the final skirmish in the Atlanta Campaign was fought here south of Atlanta, cutting off the city and forcing the mayor of Atlanta to surrender atMarietta in early September 1864. The final fall of Atlanta in the Battle of Jonesborough ended up being a decisive point in the nation's history, propelling Abraham Lincoln to re-election two months later, and continuing the war until the Confederacy finally surrendered the following year.