In 2023, St. Clair County, MO had a population of 9.45k people with a median age of 47.2 and a median household income of $46,731. Between 2022 and 2023 the population of St. Clair County, MO grew from 9,330 to 9,451, a 1.3% increase and its median household income grew from $43,483 to $46,731, a 7.47% increase.
The 5 largest ethnic groups in St. Clair County, MO are White (Non-Hispanic) (92.9%), Two+ (Non-Hispanic) (3.79%), Other (Hispanic) (0.794%), Black or African American (Non-Hispanic) (0.783%), and Two+ (Hispanic) (0.72%).
None of the households in St. Clair County, MO reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
99.3% of the residents in St. Clair County, MO are U.S. citizens.
In 2023, the median property value in St. Clair County, MO was $142,500, and the homeownership rate was 75.7%.
Most people in St. Clair County, MO drove alone to work, and the average commute time was 28.8 minutes. The average car ownership in St. Clair County, MO was 3 cars per household.
St. Clair County, MO borders Bates County, MO, Benton County, MO, Cedar County, MO, Henry County, MO, Hickory County, MO, Polk County, MO, and Vernon County, MO.