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ZIP CODE TABULATION AREA

63304

Missouri · 43,195 residents · 55.1 sq mi
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With 43,195 people, ZIP 63304 is a ZIP code in St. Charles County. 88% of homes are owner-occupied. This is an unusually credentialed place: 49% of adults have a four-year degree. The poverty rate is 3.5%, under the national 12.5%. The foreign-born share is 4%. Median household income runs $114,442, well clear of the $82,259 US median. Among the 14 ZIP codes in St. Charles County, 63304 ranks 6th by median household income.

$114,442
US average: $82,259
$60,115
US average: $44,673
$351,000
US average: $376,019
49.3%
US average: 35.6%
Land area
55.1 sq mi
Age, sex & households
Under 18
23.5%
Age 65+
18.4%
49.4%
50.6%
2.65 people
Race & ethnicity · 2024
2024
White, non-Hispanic86.5%(37,363)
Black4.1%(1,760)
Hispanic / Latino4.1%(1,768)
Asian1.6%(687)
Other3.7%(1,617)
31
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
3.1
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within St. Charles County
Income rank vs other ZIPs
LOWEST6TH OF 14HIGHEST
Adjacent ZIPs
63301$85,308
63303$99,138
63332$146,146
63341$170,598
Frequently asked

How many people live in ZIP code 63304?

ZIP code 63304 has about 43,195 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 63304?

The typical household in ZIP code 63304 earns about $114,442 a year. Half of households make more than that, and half make less.

Is ZIP code 63304 expensive?

In ZIP code 63304, the median home is worth about $351,000, and the typical rent is about $1,749 a month.

How educated are people in ZIP code 63304?

About 49.3% of adults age 25 and over in ZIP code 63304 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 63304?

About 3.5% of people in ZIP code 63304 live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR · ZCTA · UPDATED 2024