Skip to content

ZIP code 63031: Florissant, MO

63031 is a ZIP code in Florissant, Missouri, mainly in St. Louis County, part of the St. Louis, MO-IL metro area. About 50,196 people live here.

Population
50,196
Median household income
$70,811
Typical home value
$177,400+2.4% in 12 months
Median rent
$1,429gross, per month
Median age
38
Homeowners
72.3%of occupied homes
Loading map…

Shaded: ZIP code 63031's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 63031 details

CityFlorissant
StateMissouri
CountySt. Louis County
Metro areaSt. Louis, MO-IL
Time zoneCentral Time (UTC−6), observes daylight saving time
TypeStandard (delivery area)
Land area15.1 sq mi, plus 1.4 sq mi of water
Population density3,333 people per sq mi
Bachelor's degree or higher28.6% of adults 25+
Average commute25.7 minutes
Center coordinates38.81205, -90.35362

Median rent in 63031 by bedrooms

SizeMedian gross rent
Studio$1,036/mo
1 bedroom$966/mo
2 bedrooms$1,278/mo
3 bedrooms$1,555/mo
4 bedrooms$2,106/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 63031

ZIP codeCityDistancePopulation
63042Hazelwood, MO2.5 mi17,813
63034Florissant, MO4.2 mi18,908
63033Florissant, MO4.4 mi43,056
63044Bridgeton, MO4.9 mi10,324
63134Saint Louis, MO5.0 mi13,059
63135Saint Louis, MO5.1 mi18,381
63140Saint Louis, MO5.3 mi316
63074Saint Ann, MO6.2 mi15,793

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 63031?

A typical home in ZIP code 63031 is worth about $177,400 (Zillow Home Value Index). The median household here earns $70,811 a year. See what buying here would cost per month, with Missouri average taxes and insurance filled in.

Monthly payment for a $177,400 homeWhat can a $70,811 income afford?Rental property numbers

About ZIP code 63031

What city is ZIP code 63031?

ZIP code 63031 is in Florissant, MO, in St. Louis County.

What county is ZIP code 63031 in?

63031 is mainly in St. Louis County, Missouri.

What is the population of ZIP code 63031?

About 50,196 people live in ZIP code 63031, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 63031 in?

63031 is in Central Time (UTC−6). It observes daylight saving time.

What other ZIP codes does Florissant have?

Florissant, MO also uses 63032, 63033 and 63034.