Demographics in Arnold, MO

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

Where is Arnold?

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Population

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

Total Population

20,884

Male

10,352

49.6%

Female

10,532

50.4%

Median Age

39.9

Race & Ethnicity

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

White

90.9%

Black

0.2%

Hispanic

2.2%

Asian

1.0%

Two or More

7.4%

Other

0.4%

Education & Household

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

Bachelor's or Higher

17.9%

High School or Higher

42.4%

Foreign Born

5.6%

Veterans

5.3%

Married

44.1%

Avg Household Size

2.4

Marital Status by Age

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

Arnold, MO has a population of 20,884 with a median age of 39.9. The racial makeup is 90.9% White, 2.2% Hispanic, 0.2% Black, 1.0% Asian. About 17.9% of residents hold a bachelor's degree or higher. The foreign-born population is 5.6%.