St. Charles, Missouri Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of St. Charles, Missouri is 71,048 as of the 2023 American Community Survey, making it the 9th-largest city in Missouri. The median household income is $85,522, the median home value is $280,800, and the median age is 38.9.
The population has grown 9.1% since 2010 (66,396 → 72,458).
71,048
Population
2818
People / sq mi
$85,522
Median Income
$280,800
Median Home Value
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St. Charles covers 25.2 sq mi of land at 2818 people per square mile.
About St. Charles, MO
The poverty rate is what most separates St. Charles from the typical city: 2.6% of residents live below the federal poverty line, against 12.4% nationally. With 71,048 residents, St. Charles is a city in Missouri. It is the #9-largest of all cities in Missouri nationally.
Median household income is $85,522, above the US median of $78,538. Only 2.6% of residents live in poverty, below the national 12.4%. Median home value is $280,800, with typical rent around $1,186.
College attainment is above the local norm at 44.2%, above the national 35.0%. Remote work is above the national 14.0% at 15.6%, and the average commute runs about 22 minutes each way.
St. Charles city Population History (2010-2024)
The city of St. Charles city had a population of 66,396 in 2010 and 72,458 in 2024, a 9.1% growth over 14 years. The peak was 72,458 in 2024. Average annual growth rate: 0.63%.
72,458
Population (2024)
66,396
Population (2010)
72,458
Peak (2024)
0.63%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 66,396 |
| 2011 | 66,633 |
| 2012 | 66,986 |
| 2013 | 68,151 |
| 2014 | 68,568 |
| 2015 | 69,120 |
| 2016 | 69,402 |
| 2017 | 70,390 |
| 2018 | 70,807 |
| 2019 | 71,028 |
| 2020 | 70,790 |
| 2021 | 71,102 |
| 2022 | 71,287 |
| 2023 | 72,040 |
| 2024 | 72,458 |
Race & Ethnicity
| White | 79.3% |
| Black or African American | 7.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.9% |
| Two or More Races | 0.0% |
Economy & Income
$85,522
Median Household Income
$49,196
Per Capita Income
2.6%
Poverty Rate
1.5%
Unemployment Rate
Housing
$280,800
Median Home Value
$1,186
Median Rent
67.9%
Owner-Occupied
Education
94.3%
High School+
44.2%
Bachelor's+
Commute
0.1%
Drive Alone
76.0%
Public Transit
15.6%
Work From Home
21.7 min
Avg Commute
Community Profile
28.5%
Foreign Born
91.6%
Non-English at Home
6.9%
Veterans
11.9%
With Disability
95.0%
Health Insurance
96.9%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 23.3% |
| Manufacturing | 13.6% |
| Finance, Insurance & Real Estate | 11.9% |
| Information | 9.1% |
| Education, Health Care & Social Services | 8.4% |
| Construction | 6.1% |
| Retail Trade | 5.8% |
| Arts, Entertainment & Food Services | 4.0% |
| Public Administration | 3.0% |
| Transportation & Warehousing | 1.8% |
| Agriculture & Mining | 0.5% |
Largest cities in Missouri
Largest counties in Missouri
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Metro areas in Missouri
City rankings
Frequently Asked Questions
St. Charles, Missouri has a population of 71,048 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 9th-largest city in Missouri.
The median household income in St. Charles, Missouri is $85,522, with 2.6% of residents living below the federal poverty level.
The median home value in St. Charles, Missouri is $280,800, with median monthly rent at $1,186 and a homeownership rate of 67.9%.
The median age in St. Charles, Missouri is 38.9 years. The population is 49.5% male and 50.5% female.
The population has grown 9.1% since 2010 (66,396 → 72,458).
St. Charles city, MO Climate
St. Charles city, MO has an average annual temperature of 12.9°C (55°F) and receives about 965 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
12.9°C
Avg Temp
965
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -2° / 29° | 47 mm |
| February | 1° / 34° | 53 mm |
| March | 7° / 44° | 87 mm |
| April | 13° / 56° | 95 mm |
| May | 19° / 65° | 105 mm |
| June | 24° / 74° | 90 mm |
| July | 26° / 79° | 98 mm |
| August | 25° / 77° | 81 mm |
| September | 21° / 69° | 82 mm |
| October | 14° / 57° | 72 mm |
| November | 7° / 45° | 84 mm |
| December | 1° / 34° | 71 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit St. Charles city, MO
The most comfortable months to visit St. Charles city, MO are typically September, June and May, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 32°C high). The coldest is January (near -7°C low). May is usually the wettest month.
Where to stay near St. Charles
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Population, race, income, age, and trends across Missouri
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.