COUNTY · 2020 ACS
St. Charles County
Missouri · 405,262 residents · 561 sq mi
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Part of the St. Louis metro area
The short version
St. Charles County is a county of 405,262 people in Missouri. That is roughly 53% ahead of the Missouri median. Owners hold 79% of the housing stock. The population is up 43% since 2000. 4% of people here were born outside the United States. Poverty is uncommon here, at 4.8% of people here.
At a glance
Wealthier
above the US median
US median: $66,278
Mid-age
median age 39.3
US median: 38.8
More educated
41% hold a bachelor's degree
US average: 33%
Stable housing
home values roughly flat, inflation adjusted
US median home: $265,253
Section 01
Population & growth
Land area
561 sq mi
Population, 1990 – 2024
2024415K
Age distribution, 2020
Under 55.7%(23,139)
5 to 96.5%(26,404)
10 to 146.9%(28,119)
15 to 196.8%(27,492)
20 to 245.7%(23,263)
25 to 3412.2%(49,608)
35 to 4413.6%(55,078)
45 to 5412.6%(50,918)
55 to 6413.9%(56,190)
65 to 749.6%(38,803)
75 to 844.7%(19,207)
85 and over1.7%(7,041)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$87,644
+2%inflation adjusted, since 2000
from $57,258 in 2000
US average: $66,278
1990 – 2024
Households earning $100K+
58.3%
+12.2 ptssince 2009
from 46.1% in 2009
US average: 43.9%
Workforce by industry, 2020
Retail trade12.6%
Information11.8%
Other services10.1%
Public administration8.2%
Wholesale trade7%
Finance & insurance4.3%
Professional, scientific, technical3.5%
Transportation & warehousing3.2%
Arts, entertainment, food2.1%
Education & health services0.8%
Agriculture, forestry, fishing0.6%
Construction0.4%
Manufacturing0.1%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03
Housing
$230,100
+25%inflation adjusted, since 2000
from $122,600 in 2000
US average: $265,253
1990 – 2024
2.6
−5%since 2009
from 2.8 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity
2000
White, non-Hispanic93.8%(266,158)
Black2.7%(7,573)
Hispanic / Latino1.5%(4,176)
Asian0.8%(2,397)
Other0%
2020
White, non-Hispanic82.9%(335,879)
Black5.1%(20,672)
Hispanic / Latino4%(16,011)
Asian2.7%(11,068)
Other3%(12,051)
20
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry
Hispanic origin
Mexican1.9%(7,631)
Puerto Rican0.3%(1,362)
Central American0.3%(1,147)
South American0.2%(843)
Guatemalan0.2%(617)
Cuban0.1%(475)
Spaniard0.1%(458)
Colombian0.1%(311)
Panamanian0.1%(277)
Peruvian0%(179)
Honduran0%(147)
Dominican0%(146)
+ 9 more hispanic origin groups with data
Venezuelan0%(115)
Argentine0%(99)
Costa Rican0%(65)
Ecuadorian0%(51)
Bolivian0%(38)
Chilean0%(28)
Salvadoran0%(26)
Nicaraguan0%(15)
Uruguayan0%(6)
Asian origin
Asian Indian1%(3,886)
Chinese0.4%(1,674)
Vietnamese0.4%(1,590)
Filipino0.3%(1,000)
Korean0.2%(720)
Japanese0.1%(315)
Pakistani0.1%(298)
Thai0.1%(292)
Laotian0%(69)
Cambodian0%(44)
Nepalese0%(34)
Malaysian0%(28)
+ 5 more asian origin groups with data
Ancestry
German33.2%(132,290)
Irish16.3%(65,094)
English10.4%(41,483)
American7.6%(30,249)
Italian6.9%(27,333)
French3.9%(15,372)
Polish3.2%(12,819)
Scottish1.8%(7,011)
Dutch1.3%(5,223)
Scotch-Irish0.9%(3,514)
Swedish0.8%(3,260)
Norwegian0.7%(2,738)
+ 45 more ancestry groups with data
British0.6%(2,303)
Welsh0.6%(2,207)
Czech0.5%(2,078)
Russian0.5%(1,866)
Hungarian0.4%(1,737)
Subsaharan African0.4%(1,425)
Swiss0.3%(1,311)
Austrian0.3%(1,086)
Danish0.3%(1,086)
French Canadian0.2%(964)
Greek0.2%(850)
Lithuanian0.2%(776)
Ukrainian0.2%(732)
Croatian0.2%(709)
Iranian0.1%(590)
Canadian0.1%(562)
Belgian0.1%(526)
Finnish0.1%(475)
Egyptian0.1%(401)
Portuguese0.1%(360)
Brazilian0.1%(340)
Slovak0.1%(335)
Romanian0.1%(334)
West Indian0.1%(298)
Lebanese0.1%(216)
Palestinian0%(187)
Armenian0%(134)
Israeli0%(126)
Macedonian0%(108)
Bulgarian0%(100)
Nigerian0%(100)
Australian0%(93)
Turkish0%(85)
Slovene0%(84)
Serbian0%(82)
Haitian0%(81)
Latvian0%(70)
Jamaican0%(61)
Kenyan0%(53)
Ethiopian0%(26)
Syrian0%(16)
Somali0%(11)
Jordanian0%(10)
Ghanaian0%(9)
Moroccan0%(3)
Section 05
Education
High school or higher
95.0%
+5.9 ptssince 2000
from 89.1% in 2000
US average: 88.5%
Section 06
Commute & transportation
Section 07
Work & employment
Women 20-64 in the labor force
79.6%
US average: 73.3%
Section 08
People & community
Computer in household
95.8%
US average: 91.9%
Marital status (2024)
Men 15+
Never married30.5%(50,668)
Married59%(98,118)
Widowed2.1%(3,562)
Divorced8.3%(13,854)
Women 15+
Never married25.4%(43,713)
Married55%(94,825)
Widowed7.7%(13,298)
Divorced11.9%(20,538)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage
Direct-purchase
12.4%
US average: 13.7%
VA health care
1.6%
US average: 2.3%
Any private
85.3%
US average: 68.1%
Any public
21.1%
US average: 35.2%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2020
Gulf War (2001 or later)16.1%(3,705)
Gulf War (1990s)20.3%(4,673)
Vietnam era37.8%(8,714)
Korean War7.9%(1,815)
World War II2.5%(580)
Share of the 23,046 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to St. Charles County
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Pop 433,415
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Pop 486,444
Mercer County
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Places similar to St. Charles CountyHead to head
Compare St. Charles County to nearby counties
ST. CHARLES COUNTY VS
St. Louis County
Income$82,936−5%
Home value$276,800+20%
Population990,911+132%
SEE FULL COMPARISON →
ST. CHARLES COUNTY VS
Lincoln County
Income$89,278+2%
Home value$244,300+6%
Population66,676−84%
SEE FULL COMPARISON →
ST. CHARLES COUNTY VS
St. Louis
Income$56,160−36%
Home value$197,500−14%
Population278,144−35%
SEE FULL COMPARISON →
ST. CHARLES COUNTY VS
Warren County
Income$81,209−7%
Home value$260,400+13%
Population39,016−91%
SEE FULL COMPARISON →
Frequently asked
How many people live in St. Charles County, Missouri?
St. Charles County, Missouri has about 405,262 residents according to the 2020 American Community Survey.
What is the median household income in St. Charles County, Missouri?
The typical household in St. Charles County, Missouri earns about $87,644 a year. Half of households make more than that, and half make less.
Is St. Charles County, Missouri expensive?
In St. Charles County, Missouri, the median home is worth about $230,100, and the typical rent is about $1,069 a month.
How educated are people in St. Charles County, Missouri?
About 40.8% of adults age 25 and over in St. Charles County, Missouri hold a bachelor's degree or higher.
What is the poverty rate in St. Charles County, Missouri?
About 4.8% of people in St. Charles County, Missouri live below the federal poverty line.
Has St. Charles County, Missouri grown since 1990?
Yes, St. Charles County, Missouri has grown since 1990. The population has added about 192,355 residents, a change of about 90 percent over that period.
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85 census tracts (top 20 by population)
Census Tract 3120.96Census Tract 3121.93Census Tract 3113.12Census Tract 3120.95Census Tract 3102.01Census Tract 3111.53Census Tract 3121.92Census Tract 3120.03Census Tract 3111.24Census Tract 3119.04Census Tract 3111.22Census Tract 3117.32Census Tract 3111.03Census Tract 3114.22Census Tract 3108.02Census Tract 3119.03Census Tract 3118.02Census Tract 3118.01Census Tract 3111.51Census Tract 3120.9414 ZIP codes
ZIP 63376ZIP 63366ZIP 63301ZIP 63385ZIP 63368ZIP 63303ZIP 63304ZIP 63367ZIP 63348ZIP 63341ZIP 63332ZIP 63373ZIP 63386ZIP 63365Up the hierarchy
All counties in MissouriDATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024