Saint Charles County , Missouri

Saint Charles County: County in Missouri, United States

Saint Charles County locator map
Location of Saint Charles County on Missouri map.

About

Saint Charles County is a county located in the U.S. state of Missouri. As of the 2010 census, the population was 360,485 and a population density of 235 people per km². After 10 years in 2020 county had an estimated population of 406,204 inhabitants. Its county seat is St. Charles. The county was created 209 years ago in 1811.

St. Charles County Missouri Courthouse 20141018 A image
St. Charles County Missouri Courthouse 20141018 A
St. Charles County Missouri Courthouse 20141018 A image

Geography

Saint Charles County is located at 38°46'55"N 90°40'30"W (38.7819200, -90.6749000). It has 2 neighbors: Calhoun County and Jersey County.

Saint Charles County map

The largest city of Saint Charles County is O'Fallon with a population of 89,769. Other cities include, Saint Charles population 71,761, Saint Peters population 58,043, Wentzville population 43,109 and Lake Saint Louis population 17,186. See all Saint Charles County cities & populated places.

Saint Charles County Quick Facts

Population : 406,204 (2020)
Country : United States of America
State : Missouri (United States)
Different from : St. Charles Parish
Area : 1534 km2
Water as percent of area : 5.4%
Land as percent of area : 94.6%
Named for : Charles Borromeo
Altitude : 623 feet / 190 meters
Capital : St. Charles
Establishment : January 01, 1812
Time Zone : America/Chicago
Local time : 20:25:08 (25th September 2021)
Density : 265 Pop. per km² as of 2020
Population growth : 11.26% (2010-2020)

Saint Charles County has 2 neighbours.

  • St. Charles

Demographics

The population of Saint Charles County increased by 11.26% in 10 years.

Year Population % Change Method
2010 360,485 - census
2011 365,582 1.39% estimation process
2012 369,111 0.96% estimation process
2013 374,288 1.38% estimation process
2014 379,844 1.46% estimation process
2015 384,978 1.33% estimation process
2016 390,541 1.42% estimation process
2017 395,130 1.16% estimation process
2018 398,780 0.92% estimation process
2019 402,022 0.81% estimation process
2020 406,204 1.03% estimation process

Comte de Saint Charles, Comté de Saint Charles, Saint Charles

People born in Saint Charles County (6)

People born in Saint Charles County, including baseball player Ken Heintzelman, 3rd Chief of Staff of the United States Army John C. Bates, soccer player-coach Wendy Dillinger, you can see a list of people who born in Saint Charles County.

Other places with the same name (1)

Saint Charles County Populated Places (more)

Cities, Towns, Neighborhoods & Other Populated Places in Saint Charles County.

City Name Population Title
O'Fallon 89,769 City in St.
Saint Charles 71,761 City in St.
Saint Peters 58,043 City in Missouri
Wentzville 43,109 City in Saint Charles County, Missouri, United States
Lake Saint Louis 17,186 City in Saint Charles County, Missouri, United States
Dardenne Prairie 13,397 City in Saint Charles County, Missouri, United States
Cottleville 5,925 City in Saint Charles County, Missouri, United States
Weldon Spring 5,546 City in Saint Charles County, Missouri, United States
Saint Paul 2,796 City in St.
Foristell 618 City in Saint Charles County, Missouri, United States
West Alton 529 City in Saint Charles County, Missouri, United States
New Melle 506 City in Saint Charles County, Missouri, United States
Josephville 485 Human settlement in St.
Portage Des Sioux 329 City in St.
Augusta 267 City in St.
Weldon Spring Heights 90 Village in the United States

Missouri Other Counties (more counties)

County Name Population Title
Saint Louis County 994,020 County in Minnesota, United States
Jackson County 705,925 County in Oregon, United States
Kansas City 495,327 Largest municipality in the U.
St. Louis 315,685 City in Missouri, United States
Greene County 294,997 County in Tennessee, United States
Clay County 253,463 County in North Carolina, United States
Jefferson County 226,543 County in Missouri, United States
Boone County 182,991 County in West Virginia, United States
Columbia 124,769 City in Missouri, United States
Jasper County 121,648 County in South Carolina, United States
Independence 116,774 County seat of Jackson County, Missouri, United States
East Independence 110,675 City in Jackson County, Missouri, United States of America
Cass County 106,806 County in Missouri, United States
Platte County 106,532 County in Wyoming, United States
Franklin County 104,469 County in Missouri, United States
Lee's Summit 101,467 City in Missouri, United States