Fairburn is a city in Fulton County, Georgia with a postal service area that used to extend into Fayette County, Georgia until the summer of 2009. The population was 5,464 at the 2000 census. Census Estimates for 2005 show a population of 8,564.
Fairburn is located along a railroad line and was once the county seat for Campbell County, Georgia starting in 1870. This occurred after the original seat of Campbellton refused to allow the Atlanta & West Point Railroad line though on account of the anticipated noise, then faded away as Fairburn grew. The government of Campbell County went bankrupt in 1931 during the Great Depression and it, along with Milton County to the north, was absorbed into Fulton County when 1932 began. Fairburn is also home to the Georgia Renaissance Festival, in operation during the springtime.
Fairburn is located at 33°33′45″N 84°34′53″W / 33.5625°N 84.58139°W / 33.5625; -84.58139 (33.562411, -84.581443).