St. Charles, MO Census Data
The 9th largest city in Missouri by population · 13 cities ranked
St. Charles is the 9th largest city in Missouri by population and ranks 4th of 13 for median household income. With 71,048 residents, it has a lower poverty rate than 9 other Missouri cities. This snapshot draws from the 2023 American Community Survey (ACS) 5-year estimates.
Updated: 2026-04-13 · Source: U.S. Census Bureau, ACS 2023
Population
71,048
49.5% male · 50.5% female
Median Age
38.9
0.2 above the national average (38.7 yrs)
Median Household Income
$85,522
$6,984 above the national average ($78,538)
Bachelor's Degree or Higher
44.2%
9.2% above the national average (35.0%)
HS diploma or higher: 94.3%
Poverty Rate
6.0%
6.4% below the national average (12.4%)
Uninsured: 5.0%
Broadband Access
96.9%
7.2% above the national average (89.7%)
Median Home Value
$280,800
Median rent: $1,186 · 68% owner-occupied
Unemployment Rate
2.3%
Labor force participation: 63.3%
Per Capita Income
$51,995
Individual average income (not household)
Veteran Population
6.9%
Disability rate: 11.9%
How St. Charles Compares to Other Missouri Cities
Rankings among all 13 Missouri cities tracked in the 2023 ACS.
| Ranking | Position | Tier |
|---|---|---|
| Largest by Population | 9th of 13 | Bottom half |
| Highest Median Income | 4th of 13 | Top half |
| Lowest Poverty Rate | 4th of 13 | Top half |
| Highest Bachelor's Attainment | 3rd of 13 | Top 25% |
| Highest Home Value | 3rd of 13 | Top 25% |
Demographics
Race & Ethnicity
Age Distribution
Commute to Work
St. Charles, MO Frequently Asked Questions
What is the population of St. Charles, MO?
The population of St. Charles, MO is 71,048 according to the 2023 American Community Survey 5-year estimates. The median age is 38.9 years.
What is the median household income in St. Charles?
The median household income in St. Charles, MO is $85,522, above the national average of $78,538. Per capita income is $51,995.
What is the poverty rate in St. Charles?
The poverty rate in St. Charles, MO is 6.0%, compared to the national average of 12.4%. About 5.0% of residents lack health insurance.
What percentage of St. Charles residents have a college degree?
44.2% of adults (25+) in St. Charles hold a bachelor's degree or higher, and 94.3% have at least a high school diploma. The national average for bachelor's degree holders is 35.0%.
What is the median home value in St. Charles?
The median home value in St. Charles, MO is $280,800. Median rent is $1,186 per month, with 68% of housing units owner-occupied.
What is the racial makeup of St. Charles?
St. Charles's population is 79.3% White, 7.7% Black, 6.6% Hispanic or Latino, and 4.0% Asian (source: 2023 ACS).
How does St. Charles rank among Missouri cities?
St. Charles is the 9th largest city in Missouri by population, the 4th highest for median household income, the 4th lowest for poverty rate, the 3rd highest for bachelor's degree attainment among 13 ranked Missouri cities.
What is the unemployment rate in St. Charles?
The unemployment rate in St. Charles, MO is 2.3%, with a labor force participation rate of 63.3%. Per capita income is $51,995.
Cities Similar to St. Charles
Other Missouri cities with comparable population and income levels.