St. Clair County, Alabama Demographics 2026

Population Overview

St. Clair County is located in Alabama with a total population of 92,903. It is the 16th most populous county out of 67 in Alabama.

Age Demographics

The median age in St. Clair County is 41.0 years. This is 4% higher than the state median of 39.3 years.

Economy, Income & Housing

The median household income in St. Clair County is $78,993. This is 27% higher than the state median of $62,027. Compared to the national median of $78,538, household income here is about average. The poverty rate stands at 11.2%. This is 29% lower than the state poverty rate of 15.6%. The unemployment rate is 4.5%. This is 8% lower than the state rate of 4.8%. The median home value is $218,500. Housing costs are 12% higher than the state median of $195,100. With a home-value-to-income ratio of just 2.8x, St. Clair County is one of the most affordable housing markets in the area. 82.5% of occupied housing units are owner-occupied. This homeownership rate is 18% higher than the state average of 69.9%.

Race & Ethnicity

The largest racial or ethnic group in St. Clair County is White (non-Hispanic), making up 83.6% of the population. Black or African American residents account for 9.6%. The Black or African American population (9.6%) is well below the state average of 25.9%. The Asian population (0.5%) is well below the state average of 1.4%.

Education

19.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 28% lower than the state rate of 27.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 87.6%.