St. Charles County, MO Population Statistics: Density Map Data
Analyze local population trends, population density map, housing costs, and the local economy.
Area Snapshot Statistics
Key statistics on population, economy, housing, and commuting compared to state and national averages. Explore interactive maps for deeper analysis.
Population: density and quick facts
| Metric | St. Charles County | Missouri Avg | U.S. Average |
|---|---|---|---|
| Population | 413,284 | 6,177,646 | 334,821,731 |
| Population density (per sq mi) | 697.5 | 88.7 | 85.8 |
| Population growth (%/yr) | 1.08% | 0.26% | 0.57% |
| Median age | 38.4 | 37.3 | 37.1 |
| Households | 158,679 | 2,484,450 | 128,459,983 |
Population in St. Charles County grew by 19.4% from 2009 to 2023, reaching 409,812 in 2023.
Population Growth 2009–2023
Race & Ethnicity
Economy
St. Charles County has a the economy index of B, which means it is quite prosperous.
| Metric | St. Charles County | Missouri Avg | U.S. Average |
|---|---|---|---|
| Median household income | $103,668 | $69,051 | $78,145 |
| Income growth (%/yr) | 4.62% | 4.84% | 5.07% |
| Unemployment rate | 2.8% | 4.1% | 5.2% |
The median household income in St. Charles County is about 50% higher than in Missouri.
Housing
| Metric | St. Charles County | Missouri Avg | U.S. Average |
|---|---|---|---|
| Median home price | $258,961 | $136,017 | $242,182 |
| Median rent | $1,311 | $995 | $1,342 |
| Homeownership rate | 80.7% | 67.9% | 65.1% |
The median home price in St. Charles County is about 16.5 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,311 per month for that long.
Commute Time & Mobility
Commuters in St. Charles County spend about 46 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 191 hours, about 7.9 full days, spent commuting.
| Metric | St. Charles County | Missouri Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 22.9 | 21.0 | 22.5 |
| Round-trip commute (min) | 45.8 | 42.1 | 44.9 |
| Yearly time spent (hours) | 191 | 175 | 187 |
| Estimated yearly cost | $5,910 | $5,435 | $5,803 |
| Work from home | 16.0% | 11.6% | 13.4% |
| Highway traffic (vehicles/day) | 14,472 | 7,545 | 8,813 |
| Local road traffic (vehicles/day) | 2,159 | 923 | 1,355 |
Fastest commutes among counties in
Missouri:
Saline County (11.5 min), Nodaway County (11.9 min), Adair County (12.1 min).
Slowest:
Bollinger County (33.1 min), Dallas County (31.6 min), Caldwell County (31.0 min).
The average commute time in St. Charles County is 23 minutes, longer than the 21 minutes in Missouri.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
St. Charles County has a education index of B, which means it is quite educated.
| Metric | St. Charles County | Missouri Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 39.0% | 28.8% | 31.6% |
| Average household size | 2.54 | 2.42 | 2.54 |
Highest education index among counties in
Missouri:
St. Louis County (0.4), Platte County (0.4), Boone County (0.4).
Lowest:
Bollinger County (0.2), Wayne County (0.2), Ripley County (0.2).
Health
St. Charles County has a health index of B, which means it is quite healthy.
| Metric | St. Charles County | Missouri Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 79.9 | 76.9 | 78.3 |
| Self-rated poor health | 11.5% | 19.0% | 16.3% |
| Smokers | 16.0% | 22.8% | 19.0% |
Highest health index among counties in
Missouri:
St. Charles County (0.8), Platte County (0.8), Boone County (0.8).
Lowest:
Scotland County (0.7), Ripley County (0.7), Pemiscot County (0.8).
Frequently Asked Questions
Common questions about St. Charles County, Missouri.
What is the population of St. Charles County, Missouri?
The population of St. Charles County, Missouri is 413,284, compared to the U.S. total of 334,821,731.
What is the population density of St. Charles County, Missouri?
The population density of St. Charles County, Missouri is 697.5 people per square mile, compared to the U.S. average of 85.8 people per square mile.
What is the median household income in St. Charles County, Missouri?
The median household income in St. Charles County, Missouri is $103,668, compared to the U.S. median of $78,145.
What is the median home price in St. Charles County, Missouri?
The median home price in St. Charles County, Missouri is $258,961, compared to the U.S. median of $242,182.
What is the unemployment rate in St. Charles County, Missouri?
The unemployment rate in St. Charles County, Missouri is 2.8%, compared to the U.S. average of 5.2%.