Demographics in O'Fallon, MO

Population, age, race, ethnicity, and household statistics — 2023 ACS Data

Where is O'Fallon?

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Population

Source: U.S. Census Bureau ACS (2023)

Total Population

92,697

Male

45,575

49.2%

Female

47,122

50.8%

Median Age

38.2

Race & Ethnicity

Source: U.S. Census Bureau ACS (2023)

White

82.5%

Black

5.1%

Hispanic

5.0%

Asian

4.2%

Two or More

6.8%

Other

1.2%

Education & Household

Source: U.S. Census Bureau ACS (2023)

Bachelor's or Higher

29.0%

High School or Higher

44.7%

Foreign Born

5.4%

Veterans

4.7%

Married

46.5%

Avg Household Size

2.7

Marital Status by Age

Source: U.S. Census Bureau ACS (2023)

O'Fallon, MO has a population of 92,697 with a median age of 38.2. The racial makeup is 82.5% White, 5.0% Hispanic, 5.1% Black, 4.2% Asian. About 29.0% of residents hold a bachelor's degree or higher. The foreign-born population is 5.4%.