In 2023, St. Charles County, MO had a population of 410k people with a median age of 39.6 and a median household income of $102,912. Between 2022 and 2023 the population of St. Charles County, MO grew from 406,262 to 409,830, a 0.878% increase and its median household income grew from $99,596 to $102,912, a 3.33% increase.
The 5 largest ethnic groups in St. Charles County, MO are White (Non-Hispanic) (83.9%), Black or African American (Non-Hispanic) (4.94%), Two+ (Non-Hispanic) (3.94%), Asian (Non-Hispanic) (2.83%), and Two+ (Hispanic) (1.78%).
None of the households in St. Charles 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.
98.1% of the residents in St. Charles County, MO are U.S. citizens.
In 2023, the median property value in St. Charles County, MO was $296,800, and the homeownership rate was 80.7%.
Most people in St. Charles County, MO drove alone to work, and the average commute time was 24.9 minutes. The average car ownership in St. Charles County, MO was 2 cars per household.
St. Charles County, MO borders Calhoun County, IL, Jersey County, IL, Madison County, IL, Franklin County, MO, Lincoln County, MO, St. Louis County, MO, and Warren County, MO.