ZIP Code 63303 Map
Census ZIP Code Tabulation Area 63303 in St. Charles, MO (St. Charles County). ZCTA boundaries closely approximate USPS delivery areas.
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ZIP 63303 Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
46,089
Households
20,690
Median household income
$99,138
Median age
41.4 years
Median home value
$321,100
Median gross rent
$1,374/mo
Owner-occupied homes
74.1%
Bachelor's degree or higher
48.8%
Below poverty level
5.3%
Land area
19.8 sq mi
Population density
2,333 / sq mi