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St. Charles city, MO

ZIP 63303 — People & Community

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLow Snow AreaRemote Work Hub

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 63303

63303 has a population of 46,627 with a median age of 41.2 yrs (49.3% male).

Race & Ethnicity
White
79.8%+30% vs US avg
x
Black
6.5%-47% vs US avg
x
Asian
5.6%-6% vs US avg
x
Hispanic
4.9%-74% vs US avg
x
Other / Two+
3.2%
x
Age Groups
0–17
18.8%-15% vs US avg
x
18–64
62.5%+1% vs US avg
x
65+
18.8%+15% vs US avg
x
Education
Less than HS
4.3%-62% vs US avg
x
High school
19.9%-24% vs US avg
x
Some college
25.7%-11% vs US avg
x
Bachelor's+
50.1%+49% vs US avg
x
Marital Status
Married
57.7%+20% vs US avg
x
Never married
25.8%-24% vs US avg
x
Divorced
11.1%+8% vs US avg
x
Widowed / Separated
5.5%
x
Diversity Index
35/100

Higher = more diverse (Simpson index from race/ethnicity)

Social & household profile

Poverty, nativity, veterans, disability, family structure, and births (ACS).

Poverty Rate
4.5%-61% vs US avg
x
Foreign Born
39.4%+184% vs US avg
x
Veterans
6.4%+7% vs US avg
x
Disability
11.3%-16% vs US avg
x
Single Parent
5.9%-28% vs US avg
x
Recent Births
71.6%+1135% vs US avg
x
Top ancestry
GermanIrishEnglish

Health & Community Indicators in 63303

Poverty Rate
4.5%-61% vs US avg
x
Veterans
6.4%+7% vs US avg
x
Foreign Born
39.4%+184% vs US avg
x
Single Parent
5.9%-28% vs US avg
x
Disability
11.3%-16% vs US avg
x
Uninsured
4.2%-48% vs US avg
x
SNAP Benefits
2.5%-79% vs US avg
x
Private School
0.4%-96% vs US avg
x
Recent Births
71.6%+1135% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population46,627
Median age41.2
Poverty rate4.5%
Demographics statistics
Demographics
White79.8%
Hispanic4.9%
Black6.5%
Asian5.6%
Foreign-born39.4%