Mobile ( moh-BEEL, French: [mɔbil] ) is a city and the county seat of Mobile County, Alabama, United States. The population was 187,041 at the 2020 census. After a successful vote to annex areas west of the city limits in July 2023, Mobile’s population increased to 204,689 residents, making it the second-most populous city in Alabama. Mobile is the principal municipality of the Mobile metropolitan area. Alabama’s only saltwater port, Mobile is located on the Mobile River at the head of Mobile Bay on the north-central Gulf Coast. The Port of Mobile has always played a key role in the economic health of the city, beginning with the settlement as an important trading center between the French colonists and Native Americans, down to its current role as the 12th-largest port in the United States. During the American Civil War, the city surrendered to Federal forces on April 12, 1865, after Union victories at two forts protecting the city. Considered one of the Gulf Coast’s cultural centers, Mobile has several art museums, a symphony orchestra, professional opera, professional ballet company, and a large concentration of historic architecture. Mobile is known for having the oldest organized Carnival or Mardi Gras celebrations in the United States. Alabama’s French Creole population celebrated this festival from the first decade of the 18th century. Beginning in 1830, Mobile was host to the first formally organized Carnival mystic society to celebrate with a parade in the United States. (In New Orleans, such a group is called a krewe.)