Chelsea is a city in Shelby County, Alabama, United States. It is part of the Birmingham metropolitan area. Chelsea was incorporated on March 1, 1996, with a population of 906. At the 2020 census, the population was 14,023. The city is known for its family-friendly atmosphere, high-quality schools, and rapid growth. It’s also home to numerous parks and outdoor attractions such as the Chelsea Community Center, which offers sports facilities, fitness classes, and community events.