St. Charles County Summary

Life in St. Charles County research summary. HomeSnacks has been researching the quality of life in St. Charles County over the past eight years using Census data, FBI crime data, cost of living data, and other primary sources. Based on the most recently available data, we found the following about life in St. Charles County:

  • The population in St. Charles County is 406,262.

  • The median home value in St. Charles County is $331,696.

  • The median income in St. Charles County is $99,596.

  • The median rent in St. Charles County is $1,209.

  • The unemployment rate in St. Charles County is 3.1%.

  • The poverty rate in St. Charles County is 4.5%.

  • The average high in St. Charles County is 73.1° and there are 98.0 inches of rainfall annually.

Cities & Towns in St. Charles County

List Of Cities & Towns in St. Charles County

O'Fallon, MO Population 91,825

St. Charles, MO Population 70,687

St. Peters, MO Population 57,692

Wentzville, MO Population 44,584

Lake St. Louis, MO Population 17,088

Dardenne Prairie, MO Population 12,903

Cottleville, MO Population 5,584

Weldon Spring, MO Population 5,320

St. Paul, MO Population 3,149

Flint Hill, MO Population 1,041

Foristell, MO Population 750

Josephville, MO Population 728

West Alton, MO Population 513

New Melle, MO Population 418

Portage Des Sioux, MO Population 330

Augusta, MO Population 290

Weldon Spring Heights, MO Population 145

Defiance, MO Population 81

Map Of St. Charles County

St. Charles County, MO Weather

  • The average high in St. Charles County is 73.1°.

  • There are 80.13 nice days each year.

  • Expect an average of 98.0 inches of rain each year with 5.3 inches of snow.

  • There is an average of 5:12 hours of sun each day in St. Charles County.

StatSt. Charles County
Mean High73.1
Nice Days80.13
Rainfall98.0
Snowfall5.3
Sunny_hours5:12
73.1°
Average High
98.0
Inches of Rain

St. Charles County Photos

Greaterstl
Source: Public Domain
Greaterstl
Source: Wikipedia
Greaterstl
Source: Public Domain
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Source: Wikipedia User Shane52sk at English Wiki | GFDL
St
Source: Wikipedia
Greaterstl
Source: Public Domain

St. Charles County Demographics

Population over time in St. Charles County

The current population in St. Charles County is 406,262. The population has increased 2.1% from 2019.

Year Population % Change
2022 402,377 1.0%
2021 398,472 1.1%
2020 394,290 -

Gender in St. Charles County

  • St. Charles County is 50.5% female with 205,131 female residents.

  • St. Charles County is 49.5% male with 201,130 male residents.

Female
50.5% (205,131)
Male
49.5% (201,130)
Gender St. Charles County MO USA
Female 50.5% 50.6% 50.4%
Male 49.5% 49.4% 49.6%

Race / Ethnicity in St. Charles County

St. Charles County is:

  • 85.0% White with 345,496 White residents.

  • 4.9% African American with 20,000 African American residents.

  • 0.1% American Indian with 233 American Indian residents.

  • 2.7% Asian with 11,025 Asian residents.

  • 0.0% Hawaiian with 170 Hawaiian residents.

  • 0.3% Other with 1,157 Other residents.

  • 3.4% Two Or More with 13,708 Two Or More residents.

  • 3.6% Hispanic with 14,473 Hispanic residents.

White
85.0% (345,496)
African American
4.9% (20,000)
American Indian
0.1% (233)
Asian
2.7% (11,025)
Hawaiian
0.0% (170)
Other
0.3% (1,157)
Two Or More
3.4% (13,708)
Hispanic
3.6% (14,473)

Table: St. Charles County By Race

Race St. Charles County MO USA
White 85.0% 77.6% 58.9%
African American 4.9% 11.2% 12.1%
American Indian 0.1% 0.2% 0.6%
Asian 2.7% 2.0% 5.7%
Hawaiian 0.0% 0.1% 0.2%
Other 0.3% 0.3% 0.4%
Two Or More 3.4% 4.0% 3.5%
Hispanic 3.6% 4.6% 18.7%

Household Income For St. Charles County, Missouri

  • 2.3% of households in St. Charles County earn Less than $10,000.

  • 1.2% of households in St. Charles County earn $10,000 to $14,999.

  • 3.6% of households in St. Charles County earn $15,000 to $24,999.

  • 4.7% of households in St. Charles County earn $25,000 to $34,999.

  • 9.4% of households in St. Charles County earn $35,000 to $49,999.

  • 15.1% of households in St. Charles County earn $50,000 to $74,999.

  • 13.9% of households in St. Charles County earn $75,000 to $99,999.

  • 22.5% of households in St. Charles County earn $100,000 to $149,999.

  • 14.0% of households in St. Charles County earn $150,000 to $199,999.

  • 13.2% of households in St. Charles County earn $200,000 or more.

Less than $10,000
2.3% (9,173)
$10,000 to $14,999
1.2% (5,063)
$15,000 to $24,999
3.6% (14,756)
$25,000 to $34,999
4.7% (19,291)
$35,000 to $49,999
9.4% (38,235)
$50,000 to $74,999
15.1% (61,271)
$75,000 to $99,999
13.9% (56,410)
$100,000 to $149,999
22.5% (91,529)
$150,000 to $199,999
14.0% (56,816)
$200,000 or more
13.2% (53,714)
Income St. Charles County MO USA
Less than $10,000 2.3% 5.0% 4.9%
$10,000 to $14,999 1.2% 4.3% 3.8%
$15,000 to $24,999 3.6% 8.0% 7.0%
$25,000 to $34,999 4.7% 8.6% 7.4%
$35,000 to $49,999 9.4% 12.3% 10.7%
$50,000 to $74,999 15.1% 17.7% 16.1%
$75,000 to $99,999 13.9% 13.4% 12.8%
$100,000 to $149,999 22.5% 16.1% 17.1%
$150,000 to $199,999 14.0% 7.2% 8.8%
$200,000 or more 13.2% 7.3% 11.4%

Highest level of educational attainment in St. Charles County for adults over 25

  • 2.0% of adults in St. Charles County completed < 9th grade.

  • 3.0% of adults in St. Charles County completed 9-12th grade.

  • 23.0% of adults in St. Charles County completed high school / ged.

  • 22.0% of adults in St. Charles County completed some college.

  • 9.0% of adults in St. Charles County completed associate's degree.

  • 26.0% of adults in St. Charles County completed bachelor's degree.

  • 12.0% of adults in St. Charles County completed master's degree.

  • 2.0% of adults in St. Charles County completed professional degree.

  • 1.0% of adults in St. Charles County completed doctorate degree.

< 9th Grade
2% (8,125)
9-12th Grade
3% (12,187)
High School / GED
23% (93,440)
Some College
22% (89,377)
Associate's Degree
9% (36,563)
Bachelor's Degree
26% (105,628)
Master's Degree
12% (48,751)
Professional Degree
2% (8,125)
Doctorate Degree
1% (4,062)
Education St. Charles County MO USA
< 9th Grade 2% 4% 3%
9-12th Grade 3% 6% 6%
High School / GED 23% 30% 26%
Some College 22% 21% 20%
Associate's Degree 9% 8% 9%
Bachelor's Degree 26% 19% 21%
Master's Degree 12% 9% 10%
Professional Degree 2% 2% 2%
Doctorate Degree 1% 1% 2%

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