Peachtree City is the largest city in Fayette County, Georgia, United States. As of the 2010 United States Census, it had a population of 34,364. Peachtree City is located in South Metro Atlanta. Peachtree City is noted for its extensive use of golf carts. Over 10,000 households in the city own golf carts, and most areas of the city can be reached via more than 90 miles of golf cart paths.