St. Clair County, Illinois

The median household income in St. Clair County, Illinois is $70,178, according to U.S. Census Bureau American Community Survey 2019-2023 5-Year Estimates. This represents the midpoint of all household incomes in the county.

The per capita income in St. Clair County is $37,824, which represents the average income per person across the entire county population. The median household income — which accounts for all earners in a household — is $70,178.

St. Clair County's median household income of $70,178 is higher than the Illinois state average of $68,580. The per capita income is $37,824, compared to the state average of $36,009.

The per capita income in St. Clair County, Illinois is $37,824, according to U.S. Census Bureau American Community Survey 2019-2023 5-Year Estimates. Per capita income is calculated by dividing total personal income by total population, providing an average income figure per resident.

St. Clair County's median household income of $70,178 is higher than the Illinois average of $68,580. This difference of $1,598 can be attributed to factors such as local industry mix, proximity to major employment centers, educational attainment levels, and cost of living. Counties with higher incomes often have a greater concentration of professional and technical occupations.

St. Clair County ranks #35 out of 102 counties in Illinois by median household income (1 = highest). With a median household income of $70,178 and per capita income of $37,824, it falls in the middle third of counties statewide.