Buford is a city in Gwinnett and Hall counties in the U.S. state of Georgia. As of the 2020 census, the city had a population of 17,144. Most of the city is in Gwinnett County, which is part of the Atlanta-Sandy Springs-Marietta Metropolitan Statistical Area. The northern sliver of the city is in Hall County, which comprises the Gainesville, Georgia Metropolitan Statistical Area and is part of the larger Atlanta-Athens-Clarke-Sandy Springs Combined Statistical Area.