alpharetta,_georgia | areaofwater | 10 (square kilometres) <sep> alpharetta is a city in northern fulton county, georgia, united states, and is a part of the atlanta metropolitan area as of the 2020 us census, alpharetta's population was 65,818; in 2010, the population was 57,551 
alpharetta. georgia has an area of water 1.0 sq km.no information