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ZIP Code 63303
St. Charles, MO, St. Charles County
Population
46,089
Land area
19.8sq mi
People per sq mi
2,333
City
St. Charles
ZIP 63303 and nearby ZIP codes
ZIP 63303 at a glance
- ZIP 63303 (St. Charles) is about 26 times as dense as Missouri as a whole.
- Households here earn a median of $99,138 a year, 40% more than the Missouri figure of $70,702.
- A typical owner-occupied home is valued at $321,100 (39% above Missouri) and median rent is $1,374 a month.
Local data for ZIP 63303
Counts from official public data
Housing and community stats
ZIP 63303, American Community Survey 2020-2024
Median household income
$99,138
Poverty rate
5.3%
Median home value
$321,100
Prices +5.4% in a year
Median rent
$1,374/mo
Homeownership
74.1%
Bachelor's or higher
48.8%
Median age
41.4
Average commute
21.9 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
950
ZIP Business Patterns 2023
Employees
11,331
$484M annual payroll
PPP loans
$70M
1,138 loans
Campaign donations
$227K
18% D, 28% R, 2026 cycle
Environment and hazard risk
ZIP 63303, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: strong wind
Storm events since 1996
865
Countywide, mostly thunderstorm wind
Flood insurance policies
1,076
0.8% of homes, county
July high / Jan low
88° / 21°F
42.3 inches of rain a year
Health statistics
Share of adults in ZIP 63303, CDC PLACES estimates
Obesity
35.0%
U.S. 33.3% +1.7 pts
Diabetes
10.2%
U.S. 12.1% -1.9 pts
Smoking
11.3%
U.S. 12.8% -1.5 pts
Uninsured (18-64)
6.1%
U.S. 11.1% -5.0 pts
Frequently asked questions
- What city is ZIP code 63303?
- ZIP code 63303 is in St. Charles, MO (St. Charles County).
- What county is ZIP code 63303 in?
- ZIP code 63303 is mostly in St. Charles County, Missouri.
- How many people live in ZIP code 63303?
- About 46,089 people live in the 63303 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.