Mobile County, Alabama

30°47′11″N 88°12′50″W / 30.78639°N 88.21389°W / 30.78639; -88.21389

Mobile County
Location within the U.S. state of Alabama
Alabama's location within the U.S.
Coordinates: 30°47′11″N 88°12′50″W / 30.7864°N 88.2139°W / 30.7864; -88.2139
Country United States
State Alabama
FoundedDecember 18, 1812
Named afterMobile Bay
SeatMobile
Largest cityMobile
Area
  Total
1,644 sq mi (4,260 km2)
  Land1,229 sq mi (3,180 km2)
  Water415 sq mi (1,070 km2)  25.2%
Population
 (2020)
  Total
414,809
  Estimate 
(2023)
411,640
  Density250/sq mi (97/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional districts1st, 2nd
Websitemobilecountyal.gov
  • County Number 02 on Alabama license plates
  • One of three counties shuffled to the top 3 numbers because of population size

Mobile County (/mˈbl/ moh-BEEL) is a county located in the southwestern corner of the U.S. state of Alabama. It is the third-most populous county in the state after Jefferson and Madison counties. As of the 2020 census, its population was 414,809. Its county seat is Mobile, which was founded as a deepwater port on the Mobile River. The only such port in Alabama, it has long been integral to the economy for providing access to inland waterways as well as the Gulf of Mexico.

The city, river, and county were named in honor of Maubila, a village of the paramount chief Tuskaloosa of the regional Mississippian culture. In 1540 he arranged an ambush of soldiers of Hernando de Soto's expedition in an effort to expel them from the territory. The Spaniards were armed with guns and killed many of the tribe. Mobile County and Washington County, Alabama make up the Mobile Metropolitan Statistical Area with a 2020 population of 430,197. The Mobile, AL MSA and Daphne-Fairhope-Foley, AL MSA make up the much larger Mobile-Daphne-Fairhope CSA with a 2020 population of 661,964.

The northern border of Mobile County and southern area of neighboring Washington County constitute the homeland of the state-recognized tribe of MOWA Band of Choctaw Indians, descendants of Choctaw and Creek who stayed in this area during the period of Indian Removal. They have organized to preserve their culture and language. They were the first of nine tribes to be recognized by the state.