Duluth is known as a model city for Gwinnett County and, as the second largest city in the County, has earned the reputation of a suburban oasis, making it a very desirable address. Despite phenomenal growth, it has retained its small-town character, where personal camaraderie, spirited by annual holiday and festive events, is savored. Over 22,000 residents live, work and play in its 9.8 square-mile community.