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St. Charles County

File:St._Charles_County_Missouri_Courthouse_20141018_A.jpg · Wikimedia Commons · See Wikimedia Commons

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St. Charles County

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Also known as St. Charles County, Missouri, Saint Charles County, Missouri, St. Charles County, MO

county in Missouri, United States

Key facts

Country
United States
State
Missouri
Founded
October 1, 1812
Named after
Charles Borromeo
Seat
St. Charles
Largest city
O'Fallon
County executive
Steve Ehlmann ( R )
Total
593 sq mi (1,540 km )
Land
560 sq mi (1,500 km )
Water
32 sq mi (83 km ) 5.4%
Estimate 2025
426,499
Density
720/sq mi (280/km )
Time zone
UTC−6 ( Central )
Summer dst
UTC−5 ( CDT )
Congressional districts
2nd , 3rd
Website
www .sccmo .org

via Wikipedia infobox

Wikidata facts

Population
405262
Area
1534
Official website
www.sccmo.org
Image
St. Charles County Missouri Courthouse 20141018 A.jpg
Households
149472
Show 5 more facts
Commons category
St. Charles County, Missouri
water as percent of area
5.4
inception
1812-10-01
native label
St. Charles County
per capita income
40738
Sources (10)

via Wikidata · CC0

~19 min read

Article

St. Charles County is located 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.

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.

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