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 14,982

Shelby County is located in the central portion of the U.S. state of Alabama. As of the 2020 census the population was 223,024. The county seat is Columbiana. Its largest city is Alabaster. The county is named in honor of Isaac Shelby, Governor of Kentucky from 1792 to 1796 and again from 1812 to 1816.

Alabama is a southeastern U.S. state that’s home to significant landmarks from the American Civil Rights Movement. The city of Birmingham's 16th Street Baptist Church, now a museum, was a protest headquarters in the 1960s. Martin Luther King, Jr.'s church and the Rosa Parks Museum, dedicated to the activist, can be found in the capital of Montgomery.