St. Charles County, Missouri
MO · FIPS 29183 · ACS 2024 5-Year Estimates
| Metric | Value | vs National | Rank | Percentile |
|---|---|---|---|---|
| Total Population | 414,535 | — | #178 / 3,222 | |
| Median Household Income | $104,692 | +39.3% | #125 / 3,222 | |
| Median Age | 39.8 years | +2.3% | #2,178 / 3,222 | |
| Median Home Value | $320,800 | +13.8% | #532 / 3,222 | |
| Median Gross Rent | $1,370 | +17.8% | #343 / 3,222 | |
| Poverty Rate | 5.2% | -58.7% | #60 / 3,222 | |
Demographics
St. Charles County has a population of 414,535, making it the #178 most populous county in the US. The median age is 39.8 years, which is 2.3% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Household Type
Economy
The median household income in St. Charles County is $104,692, ranking #125 out of 3,222 counties — 39.3% above the national median. The poverty rate is 5.2% and unemployment stands at 2.9%.
Median Household Income Trend
Rankings →Poverty Rate Trend
Rankings →Housing
The median home value in St. Charles County is $320,800 (+13.8% vs national). Renters pay a median of $1,370/mo and the homeownership rate is 80.5%.
Median Home Value Trend
Rankings →Health
95.8% of residents in St. Charles County have health insurance coverage, which is 4.5% above the national rate.
About St. Charles County, Missouri
St. Charles County, Missouri has a total population of 414,535, making it the 178th most populous county in the United States. The median age in St. Charles County is 39.8 years, which is 2.3% above the national median of 38.9 years.
The median household income in St. Charles County is $104,692, which ranks #125 of 3,222 counties nationwide. This is 39.3% above the national median of $75,149. The poverty rate is 5.2%, lower than the national rate of 12.6%. The unemployment rate stands at 2.9%.
The median home value in St. Charles County is $320,800, 13.8% above the national median. Renters in St. Charles County pay a median gross rent of $1,370 per month. The homeownership rate is 80.5%, compared to the national rate of 64.4%.
In St. Charles County, 42.7% of residents aged 25 and older hold a bachelor's degree or higher, 26.8% above the national average of 33.7%. Health insurance coverage stands at 95.8% of the population. The average commute time for workers is 26.8 min.
St. Charles County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 83.0% of the population, followed by Black (non-Hispanic) (5.0%) and Two or More Races (4.3%).
All data for St. Charles County, Missouri comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.