St. Clair County Flag

St. Clair County

State:
Alabama
County Seat:
Ashville

St. Clair County's estimated 2025 population is 98,894 with a growth rate of 1.72% in the past year according to the most recent United States census data. St. Clair County is the 15th largest county in Alabama. The 2010 population was 83,587 and has seen a growth of 18.31% since that time.

98,894
Total Population
156
Population Density (mi²)
15
Population Rank (State)
1.7K 1.72%
Annual Population Growth

St. Clair County Population

Demographics

Economics and Income Statistics