city has a total land area of , of which is land and , or 0.44%, is water. The city's elevation is . Buford's city limits are west of the Eastern Continental Divide. Ridge Road, part of which uses Buford as a mailing address, runs along the Eastern Continental Divide, although the road itself is outside the city limits. Buford's primary water supply comes from Lake Lanier an impoundment on the Chattahoochee River. Climate The climate of Buford, as with most of the southeastern United States, is humid subtropical (Cfa) according to the Köppen classification, with four seasons including hot, humid summers and cool winters. July is generally the warmest month of the year with an average high of around . The coldest month is January which has an average high of around . The highest recorded temperature was in 1952, while the lowest recorded temperature was in 1985. Buford receives rainfall distributed fairly evenly throughout the year as typical of southeastern U.S. cities, with February on average having the highest average precipitation at , and April typically being the driest month with . Demographics 2020 census As of the 2020 United States census, there were 17,144 people, 5,003 households, and 3,607 families residing in the city. 2010 census As of 2010 Buford had a population of 12,225. The racial and ethnic composition of the population was 65.8% white, 13.8% black or African American, 0.3% Native American, 2.9% Asian, 14.7% reporting some other race and 2.5% reporting two or more races. 25.5% of the population was Hispanic or Latino of any race. There were 4,016 households, out of which 33.9% had children under the age of 18 living with them, 45.7% were married couples living together, 15.3% had a female householder with no husband present, and 31% were non-families. 28.3% of all households were made up of individuals, and 14.6% had someone living alone who was 65 years of age or older. The average household size was 2.74 and the average family size was 3.35. The median age was 35.1 years, and there were 5,973 males and 6,252 females. The median income for a household in the city was $42,546, and the median income for a family was $44,797. Males had a median income of $31,902 versus $32,218 for females. The per capita income for the city was $19,905. About 18.1% of families and 23.0% of the population were below