The City Of Suwanee is Located about 30 miles north of Atlanta. Suwanee is well-known around the region for its distinctive parks. Voted among the “Top 10 Best Places to Live” by “Money Magazine” in 2007. Suwanee is a city in Gwinnett County, Georgia. Portions of Forsyth County and Fulton County also have Suwanee and its zip code-30024. The city has a total area of 9.9 square miles and is home to approximately 16,000 residents.