US Census Data

O'Fallon vs St. Charles

A side-by-side comparison of O'Fallon and St. Charles: population, income, housing, and more.

O'Fallon and St. Charles are places in Missouri. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

O'Fallon has the higher population (92,697 vs 71,048 in St. Charles). O'Fallon has the higher median household income ($107,203 vs $85,522 in St. Charles). O'Fallon has the higher median home value ($305,100 vs $280,800 in St. Charles).

Population, income & housing

O'FallonSt. Charles
Population92,69771,048
Median age38.2 yrs38.9 yrs
Median household income$107,203$85,522
Median home value$305,100$280,800
Median gross rent$1,400$1,186
Housing units35,55332,204
Homeownership rate80.2%67.9%
Bachelor's degree or higher42.4%44.2%
Unemployment rate2.7%2.3%

Trends (ACS 5-year, 2019–2023)

O'FallonSt. Charles
Population87,242 → 92,697 (+6.3%)70,171 → 71,048 (+1.2%)
Median household income$90,025 → $107,203 (+19.1%)$68,486 → $85,522 (+24.9%)
Median home value$226,300 → $305,100 (+34.8%)$200,400 → $280,800 (+40.1%)
Median gross rent$1,103 → $1,400 (+26.9%)$985 → $1,186 (+20.4%)

O'Fallon

Population
87,24292,697
Median household income
$90,025$107,203
Median home value
$226,300$305,100
Median gross rent
$1,103$1,400

St. Charles

Population
70,17171,048
Median household income
$68,486$85,522
Median home value
$200,400$280,800
Median gross rent
$985$1,186

Age & race/ethnicity

Age distribution (share)

O'FallonSt. Charles
Under 56.3%4.8%
5 to 1718.2%12.7%
18 to 247.1%12.4%
25 to 3413.7%14.8%
35 to 4413.9%12.9%
45 to 5414.5%9.7%
55 to 6412.3%14.0%
65 to 748.4%10.9%
75 and over5.5%7.7%

Race & ethnicity (share)

O'FallonSt. Charles
White (non-Hispanic)81.4%77.5%
Black or African American5.0%7.7%
American Indian & Alaska Native0.1%0.1%
Asian4.1%3.9%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.5%0.3%
Two or more races3.8%4.0%
Hispanic or Latino5.1%6.6%

Educational attainment (age 25+)

Share of adults 25+

O'FallonSt. Charles
No high school diploma4.5%5.7%
High school graduate23.0%21.5%
Some college or associate's30.1%28.6%
Bachelor's degree27.5%26.8%
Graduate or professional degree14.9%17.4%

Commute to work

How workers get to work (share)

O'FallonSt. Charles
Drove alone77.7%76.0%
Carpooled4.5%5.8%
Public transit0.1%0.1%
Walked0.6%1.5%
Bicycle0.0%0.1%
Worked from home15.7%15.6%
Other means1.5%0.9%

Housing

Units in structure (share)

O'FallonSt. Charles
1-unit, detached74.5%58.3%
1-unit, attached9.2%7.9%
2 to 4 units2.4%7.3%
5 to 19 units5.7%14.1%
20 or more units5.0%6.8%
Mobile home & other3.3%5.6%

Poverty & households

O'FallonSt. Charles
Poverty rate4.7%6.0%
Average household size2.662.19
Mean commute (minutes)2622
Median year structure built20001986

Full profiles

2

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O'Fallon vs St. Charles: Compare Population & Demographics | US Census Data