Jonesboro is a city in and the county seat of Clayton County, Georgia, United States. The population was 4,724 as of the 2010 census. 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 at Marietta 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. Geography Jonesboro is located at (33.524512, -84.354290). According to the United States Census Bureau, the city has a total area of , of which is land and (1.89%) is water. The railroad through Jonesboro is built on the Eastern Continental Divide and there are no bridges for the tracks for many miles in either direction. Climate Infrastructure Transit systems MARTA and Xpress GA/Georgia RTA buses serve the city. Demographics 2020 census As of the 2020 United States census, there were 4,235 people, 1,195 households, and 771 families residing in the city. 2000 census As of the census of 2000, there were 3,829 people, 1,466 households, and 1,023 families residing in the city. The population density was . There were 1,561 housing units at an average density of . The racial composition of the city was 72.79% African American, 20.63% White, 0.21% Native American, 0.73% Asian, 0.31% Pacific Islander, 3.45% from other races, and 1.88% from two or more races. Hispanic or Latino of any race were 7.55% of the population. In the past 2 years that population has doubled to about 15.86%. There were 1,466 households, out of which 34.1% had children under the age of 18 living with them, 38.6% were married couples living together, 25.6% had a female householder with no husband present, and 30.2% were non-families. 25.5% of all households were made up of individuals, and 11.5% had someone living alone who was 65 years of age or older. The average household size was 2.60 and the average family size was 3.09. In the city, the population was spread out, with 29.2% under the age of 18, 9.6% from 18 to 24, 29.6% from 25 to 44, 19.2% from 45 to 64, and 12.4% who were 65 years of age or