Grantville, Georgia  Grantville is a city in Coweta County, Georgia, United States. The 2010 census shows a population of 3,041. Grantville is located along the southern border of Coweta County at (33.237252, -84.827059). U.S. Route 29 runs through the city, passing south of the center, while Interstate 85 passes through the eastern part of the city, crossing US 29 at Exit 35. I-85 leads northeast to Atlanta and southwest to Montgomery, Alabama, while US 29, a more local road, leads north to Newnan, the Coweta County seat, and southwest to LaGrange. According to the United States Census Bureau, Grantville has a total area of , of which , or 0.31%, is water. As of the census of 2000, there were 1,309 people, 516 households, and 359 families residing in the city. The population density was 252.0 people per square mile (97.4/km²). There were 569 housing units at an average density of 109.6 per square mile (42.3/km²). The racial makeup of the city was 69.29% White, 28.50% African American, 0.31% Native American, 0.53% Asian, 1.15% from other races, and 0.23% from two or more races. Hispanic or Latino of any race were 1.45% of the population. There were 516 households out of which 32.2% had children under the age of 18 living with them, 47.7% were married couples living together, 17.2% had a female householder with no husband present, and 30.4% were non-families. 26.6% of all households were made up of individuals and 9.5% had someone living alone who was 65 years of age or older. The average household size was 2.54 and the average family size was 3.03. In the city, the population was spread out with 27.0% under the age of 18, 8.5% from 18 to 24, 30.2% from 25 to 44, 23.4% from 45 to 64, and 11.0% who were 65 years of age or older. The median age was 34 years. For every 100 females, there were 88.9 males. For every 100 females age 18 and over, there were 85.6 males. The median income for a household in the city was $28,929, and the median income for a family was $33,594.