St. Charles County, Missouri facts for kids
Quick facts for kids
St. Charles County
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![]() St. Charles County Courthouse in St. Charles
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![]() Location within the U.S. state of Missouri
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![]() Missouri's location within the U.S. |
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Country | ![]() |
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State | ![]() |
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Founded | October 1, 1812 | |
Named for | Charles Borromeo | |
Seat | St. Charles | |
Largest city | O'Fallon | |
Area | ||
• Total | 593 sq mi (1,540 km2) | |
• Land | 560 sq mi (1,500 km2) | |
• Water | 32 sq mi (80 km2) 5.4% | |
Population
(2020)
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• Total | 405,262 | |
• Density | 683.4/sq mi (263.87/km2) | |
Time zone | UTC−6 (Central) | |
• Summer (DST) | UTC−5 (CDT) | |
Congressional districts | 2nd, 3rd |
St. Charles County is in the central eastern part of the U.S. state of Missouri. As of the 2020 census, the population was 405,262, making it Missouri's third-most populous county. Its county seat is St. Charles. The county was organized October 1, 1812 and named for Saint Charles Borromeo, an Italian cardinal. The county executive is Steve Ehlmann, since January 2007.
St. Charles County is part of the St. Louis, MO-IL Metropolitan Statistical Area and contains many of the city's northwestern suburbs.
The wealthiest county in Missouri, St. Charles County is one of the nation's fastest-growing counties.
St. Charles County includes an area of vineyards and wineries whose distinction has been nationally recognized. On its rural outer edge along the south-facing bluffs above the Missouri River is an area of numerous wineries, so that Missouri Route 94 is sometimes called the Missouri Weinstrasse. The area includes the Augusta AVA, designated in 1980 as the first American Viticultural Area by the federal government.
Contents
Demographics
Historical population | |||
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Census | Pop. | %± | |
1810 | 3,505 | — | |
1820 | 3,970 | 13.3% | |
1830 | 4,320 | 8.8% | |
1840 | 7,911 | 83.1% | |
1850 | 11,454 | 44.8% | |
1860 | 16,523 | 44.3% | |
1870 | 21,304 | 28.9% | |
1880 | 23,065 | 8.3% | |
1890 | 22,977 | −0.4% | |
1900 | 24,474 | 6.5% | |
1910 | 24,695 | 0.9% | |
1920 | 22,828 | −7.6% | |
1930 | 24,354 | 6.7% | |
1940 | 25,562 | 5.0% | |
1950 | 29,834 | 16.7% | |
1960 | 52,970 | 77.5% | |
1970 | 92,954 | 75.5% | |
1980 | 144,107 | 55.0% | |
1990 | 212,907 | 47.7% | |
2000 | 283,883 | 33.3% | |
2010 | 360,485 | 27.0% | |
2020 | 405,262 | 12.4% | |
U.S. Decennial Census 1790–1960 1900–1990 1990–2000 2010–2020 |
As of 2020, there were 405,262 people and 150,668 households residing in the county. The population density was 643 people per square mile (1665/km2). There were 161,144 housing units. The racial makeup of the county was 83.8% White, 5.2% African American, 0.1% Native American, 2.8% Asian, 0.1% Pacific Islander, and 6.5% from two or more races. Hispanic or Latino made up 4.0% of the population.
There were 101,663 households, out of which 40.50% had children under the age of 18 living with them, 63.20% were married couples living together, 9.20% have a woman whose husband does not live with her, and 24.20% were non-families. 19.40% of all households were made up of individuals, and 5.90% had someone living alone who was 65 years of age or older. The average household size was 2.76 and the average family size was 3.18.
In the county, the population was spread out in age, with 29.00% under the age of 18, 8.20% from 18 to 24, 32.60% from 25 to 44, 21.60% from 45 to 64, and 8.80% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 97.10 males. For every 100 females age 18 and over, there were 94.10 males.
The median income for a household in the county was $71,458, and the median income for a family was $64,415. Males had a median income of $44,528 versus $29,405 for females. The per capita income for the county was $23,592. 4.00% of the population and 2.80% of families were below the poverty line. Out of the total people living in poverty, 4.90% are under the age of 18 and 5.10% are 65 or older.
St. Charles County has had one of the fastest-growing populations in the state for many decades, with 55% growth in the 1970s, 48% in the 1980s, 33% in the 1990s, and another 27% in the 2000s. The county sits at a cross-section of industry, as well as extensive retail and some agriculture. With the Missouri River on the south and east and the Mississippi River on the north, the county is bisected east to west by Interstate 70. After St. Charles Airport closed in 2010, the county has one remaining small airport, St. Charles County Smartt Airport. Two ferries cross the Mississippi River from St. Charles County.
Racial composition | 2010 | 2018 |
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White | 91.3% | 89.9% |
—Non-Hispanic | 89.1% | 86.9% |
Black or African American | 4.4% | 5.1% |
Hispanic or Latino (of any race) | 2.9% | 3.4% |
Asian | 2.3% | 2.7% |
Two or More Races | 1.6% | 2.0% |
Education
Public schools
- Fort Zumwalt R-II School District – O'Fallon
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- Joseph L. Mudd Elementary School – (K-02) – O'Fallon
- St. Peters Elementary School – (K-02) – St. Peters
- Dardenne Elementary School – (K-05) – O'Fallon
- Emge Elementary School – (K-05) – O'Fallon
- Hawthorn Elementary School – (K-05) – St. Peters
- Mid Rivers Elementary School – (K-05) – St. Peters
- Mount Hope Elementary School – (K-05) – O'Fallon
- Ostmann Elementary School – (K-05) – O'Fallon
- Pheasant Point Elementary School – (K-05) – O'Fallon
- Progress South Elementary School – (K-05) – St. Peters
- Rock Creek Elementary School – (K-05) – O'Fallon
- Twin Chimneys Elementary School – (K-05) – O'Fallon
- Westhoff Elementary School – (K-05) – O'Fallon
- Forest Park Elementary School – (03-05) – O'Fallon
- Lewis & Clark Elementary School – (03-05) – St. Peters
- Dr. Bernard J. DuBray Middle School – (06-08) – St. Peters
- Ft. Zumwalt North Middle School – (06-08) – O'Fallon
- Ft. Zumwalt South Middle School – (06-08) – St. Peters
- Ft. Zumwalt West Middle School – (06-08) – O'Fallon
- Fort Zumwalt East High School – (09-12) – St. Peters
- Fort Zumwalt North High School – (09-12) – O'Fallon
- Fort Zumwalt South High School – (09-12) – St. Peters
- Fort Zumwalt West High School – (09-12) – O'Fallon
- Francis Howell R-III School District – St. Peters
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- Early Childhood Family Education Center – (PK) – St. Peters
- Early Childhood Family Education Center – (PK) – St. Peters
- Early Childhood Family Education Center – (PK) – Weldon Spring
- Becky-David Elementary School – (K-05) – St. Peters
- Castlio Elementary School – (K-05) – St. Peters
- Central Elementary School – (K-05) – St. Peters
- Daniel Boone Elementary School – (K-05) – New Melle
- Fairmount Elementary School – (K-05) – St. Peters
- Harvest Ridge Elementary School – (K-05) – St. Charles
- Henderson Elementary School – (K-05) – St. Peters
- Independence Elementary School – (K-05) – Weldon Spring
- John Weldon Elementary School – (K-05) – Dardenne Prairie
- Warren Elementary School – (K-05) – Cottleville
- Barnwell Middle School – (06-08) – St. Peters
- Bryan Middle School – (06-08) – Weldon Spring
- Francis Howell Middle School – (06-08) – Weldon Spring
- Hollenbeck Middle School – (06-08) – St. Peters
- Saeger Middle School – (06-08) – Cottleville
- Francis Howell Central High School – (09-12) – Cottleville
- Francis Howell North High School – (09-12) – St. Peters
- Francis Howell High School – (09-12) – Weldon Spring Heights
- Orchard Farm R-V School District – St. Charles
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- Discovery Elementary School – (PK-02) – St. Charles
- Orchard Farm Elementary School – (K-05) – St. Charles
- Orchard Farm Middle School – (06-08) – St. Charles
- Orchard Farm High School – (09-12) – St. Charles
- St. Charles R-VI School District – St. Charles
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- Coverdell Elementary School – (K-04) – St. Charles
- George M. Null Elementary School – (K-04) – St. Charles
- Harris Elementary School – (K-04) – St. Charles
- Monroe Elementary School – (K-04) – St. Charles
- Lincoln Elementary School – (K-04) – St. Charles
- Jefferson Intermediate School – (05-06) – St. Charles
- Hardin Middle School – (07-08) – St. Charles
- St. Charles High School – (09-12) – St. Charles
- St. Charles West High School – (09-12) – St. Charles
- Wentzville R-IV School District – Wentzville
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- Early Childhood Center – (PK) – Wentzville
- Heritage Primary School – (K-02) – Wentzville
- Boone Trail Elementary School – (K-05) – Wentzville
- Crossroads Elementary School – (K-05) – O'Fallon
- Duello Elementary School – (K-05) – Lake St. Louis
- Discovery Ridge Elementary School – (K-05) – Lake St. Louis
- Green Tree Elementary School – (K-05) – Lake St. Louis
- Peine Ridge Elementary School – (K-05) – Wentzville
- Prairie View Elementary School – (K-05) – Dardenne Prairie
- Stone Creek Elementary School – (K-05) – Wentzville
- Wabash Elementary School – (K-05) – Wentzville
- Heritage Intermediate School – (03-05) – Wentzville
- Frontier Middle School – (06-08)– O'Fallon
- Wentzville Middle School – (06-08) – Wentzville
- Wentzville South Middle School – (06-08) – Wentzville
- Liberty High School – (09-12) – Lake St. Louis
- Emil E. Holt High School – (09-12) – Wentzville
- Timberland High School – (09-12) – Wentzville
Private schools
- Academy of the Sacred Heart – St. Charles – (PK-08) – Roman Catholic
- All Saints School – St. Peters – (K-08) – Roman Catholic
- Assumption Catholic Grade School – O'Fallon – (K-08) – Roman Catholic
- Duchesne High School– St. Charles– (09-12)– Roman Catholic
- First Baptist Christian Academy – O'Fallon – (PK-07) – Non-denominational Christian
- Foristell Baptist Academy – Foristell – (K-09) – Baptist
- Hope Montessori Academy – Lake St. Louis – (PK-K) – Nonsectarian
- Immaculate Conception Catholic School – Dardenne Prairie – (K-08) – Roman Catholic
- Immanuel Lutheran School – St. Charles – (PK-08) – Lutheran
- Immanuel Lutheran School – Wentzville – (PK-08) – Lutheran
- Liberty Classical School – O'Fallon – (07-12) – Non-denominational Christian
- Living Word Christian School District – O'Fallon and St. Peters– (PK-12) – Non-denominational Christian
- Lutheran High School of St. Charles County – St. Peters – (09-12) – Lutheran
- Messiah Lutheran School – Weldon Spring – (PK-08) – Lutheran
- Mid Rivers Seventh-day Adventist School – St. Peters – (03-08) – Seventh-day Adventist
- St. Charles Borromeo – St. Charles – (K-08) – Roman Catholic
- St. Cletus School – St. Charles – (K-08) – Roman Catholic
- St. Dominic High School – O'Fallon – (09-12) – Roman Catholic
- St. Elizabeth St. Robert Regional School – St. Charles – (PK-08) – Roman Catholic
- St. Joseph School – Cottleville – (K-08) – Roman Catholic
- St. Joseph School – Wentzville – (PK-08) – Roman Catholic
- St. Patrick Elementary School – Wentzville – (K-08) – Roman Catholic
- St. Paul Elementary School – St. Paul – (PK-08) – Roman Catholic
- St. Peter Catholic School – St. Charles – (PK-08) – Roman Catholic
- St. Theodore School – Wentzville – (K-08) – Roman Catholic
- Sts. Joachim & Ann School – St. Charles – (PK-08) – Roman Catholic
- Trinity Lutheran School – St. Charles – (01-08) – Lutheran
- Willott Road Christian Academy – St. Peters – (NS-09) – Baptist
- Zion Lutheran School – St. Charles – (PK-08) – Lutheran
Alternative schools
- Boonslick State School – St. Peters – Special Education
- Fort Zumwalt Hope High School – O'Fallon – Other/Alternative School – (09-12)
- Francis Howell Union High School – St. Charles – Other/Alternative School – (09-12)
- Heritage Landing – St. Peters – Other/Alternative School – (06-12)
- The Lead School – O'Fallon – Other/Alternative School – (K-12)
- Lewis & Clark Career Center – St. Charles – Vocational/Technical School – (09-12)
- Quest Day Treatment Center – St. Charles – Other/Alternative School – (06-12)
- Success Campus – St. Charles – Other/Alternative School – (09-12)
Higher education
- Lindenwood University – St. Charles
- St. Charles Community College – Cottleville
Public libraries
- St. Charles City-County Library District