St. Clair County, Alabama

St. Clair County
St. Clair County Courthouse in Pell City
Location within the U.S. state of Alabama
Alabama's location within the U.S.
Coordinates: 33°42′57″N 86°19′05″W / 33.71583°N 86.31806°W / 33.71583; -86.31806
Country United States
State Alabama
FoundedNovember 20, 1818
Named afterArthur St. Clair
SeatAshville & Pell City
Largest cityMoody
Area
  Total
654 sq mi (1,690 km2)
  Land632 sq mi (1,640 km2)
  Water22 sq mi (60 km2)  3.3%
Population
 (2020)
  Total
91,103
  Estimate 
(2023)
95,552
  Density140/sq mi (54/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district3rd
Websitewww.stclairco.com
  • County Number 59 on Alabama Licence Plates

St. Clair County is a county located in the central portion of the U.S. state of Alabama. As of the 2020 census, the population was 91,103. It has two county seats: Ashville and Pell City. It is one of two counties in Alabama, and one of 33 in the United States, with more than one county seat. Its name is in honor of General Arthur St. Clair, an officer in the French and Indian War. St. Clair County is included in the Birmingham, Alabama Metropolitan Statistical Area.