Skip to content

ZIP code 63304: Saint Charles, MO

63304 is a ZIP code in Saint Charles, Missouri, mainly in St. Charles County, part of the St. Louis, MO-IL metro area. About 43,195 people live here.

Population
43,195
Median household income
$114,442
Typical home value
$401,400+1.4% in 12 months
Median rent
$1,749gross, per month
Median age
40.7
Homeowners
87.7%of occupied homes
Loading map…

Shaded: ZIP code 63304's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 63304 details

CitySaint Charles
StateMissouri
CountySt. Charles County
Metro areaSt. Louis, MO-IL
Time zoneCentral Time (UTC−6), observes daylight saving time
TypeStandard (delivery area)
Land area55.1 sq mi, plus 3.3 sq mi of water
Population density784 people per sq mi
Bachelor's degree or higher49.3% of adults 25+
Average commute24.4 minutes
Center coordinates38.70611, -90.68602

Median rent in 63304 by bedrooms

SizeMedian gross rent
1 bedroom$1,550/mo
2 bedrooms$1,583/mo
3 bedrooms$1,903/mo
4 bedrooms$2,245/mo

Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.

ZIP codes near 63304

ZIP codeCityDistancePopulation
63338Cottleville, MO3.3 mi—
63368O Fallon, MO3.9 mi46,966
63005Chesterfield, MO4.7 mi19,779
63006Chesterfield, MO6.6 mi—
63341Defiance, MO7.2 mi3,515
63367Lake Saint Louis, MO7.5 mi29,725
63376Saint Peters, MO7.7 mi74,962
63303Saint Charles, MO8.0 mi46,089

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Buying a home in 63304?

A typical home in ZIP code 63304 is worth about $401,400 (Zillow Home Value Index). The median household here earns $114,442 a year. See what buying here would cost per month, with Missouri average taxes and insurance filled in.

Monthly payment for a $401,400 homeWhat can a $114,442 income afford?Rental property numbers

About ZIP code 63304

What city is ZIP code 63304?

ZIP code 63304 is in Saint Charles, MO, in St. Charles County.

What county is ZIP code 63304 in?

63304 is mainly in St. Charles County, Missouri.

What is the population of ZIP code 63304?

About 43,195 people live in ZIP code 63304, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 63304 in?

63304 is in Central Time (UTC−6). It observes daylight saving time.

What other ZIP codes does Saint Charles have?

Saint Charles, MO also uses 63301, 63302 and 63303.