Monticello is the largest city and the county seat of Jasper County, Georgia, United States. The city includes historic buildings such as the Jasper County Courthouse, Monticello High School and the Monticello Historic District. The population was 2,428 at the 2000 census.
Monticello was founded in 1808 as seat of the newly formed Jasper County. It was incorporated as a town in 1810 and as a city in 1901.On January 14, 1915, about 100 white men of Monticello formed a lynch mob and lynched a black family of four, including two married women. They took Dan Barber, his son Jesse Barber, and two married daughters Bula and Ella (Barber) Charles from the county jail, where they had been put after being arrested for attacking the chief of police. He had challenged Dan Barber in his house for making liquor illegally. The mob shot and hanged each of the four.