Postal Codes

63031 ZIP Code

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ZIP code 63031 covers Florissant, Missouri, with a population of about 50,258 and a median household income of $71,783.

Population
50,2583,337 per square mile
Median age
38.10.6 points below the US average
Median household income
$71,783about the Missouri median
Poverty rate
10.3%2.1 points below the US average
Typical home value
$178,179up 21.4% in five years
Median rent
$1,3511.4× the Missouri median
Degree or higher
28%7 points below the US average
Homeownership
71.5%6.5 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
847

Where 63031 is

Florissant, Missouri — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population50,258
Median age38.1
Family households65.5%
Born outside the US5.3%
Speaks a language other than English at home6.2%
White (non-Hispanic)49.4%
Black (non-Hispanic)41.2%
Asian (non-Hispanic)0.6%
Hispanic or Latino2.5%
Veterans6%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$71,783
Income per person$35,115
Poverty rate10.3%
Households on SNAP or cash assistance9.1%

Household income distribution

Under $10k3.8%
$10–15k2.2%
$15–20k2.8%
$20–25k2.7%
$25–30k3.3%
$30–35k4.2%
$35–40k4.7%
$40–45k3.5%
$45–50k4.6%
$50–60k8.4%
$60–75k11.6%
$75–100k14.9%
$100–125k12.4%
$125–150k8.9%
$150–200k7.6%
$200k or more4.5%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed22,630
Mean adjusted gross income$54,898
Returns declaring $200,000 or more1.5%
Returns, under $25k29.3%
Returns, $25k–$50k29.9%
Returns, $50k–$75k18.3%
Returns, $75k–$100k9.7%
Returns, $100k–$200k11.4%
Returns, $200k or more1.5%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$144,500
Median gross rent$1,351
Rent as a share of household income29.9%
Owner-occupied71.5%
Vacant homes8.2%
Median year built1967

What the homes are

Detached house86.8%
Attached house1.3%
2 to 4 units3.9%
5 to 19 units4.8%
20 or more units3%
Boat, RV or van0.1%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$178,179as of 2026-07
Typical home value, 1 yearup 1.3%
Typical home value, 5 yearsup 21.4%
Typical home value, 10 yearsup 94%
Typical asking rent$1,573as of 2026-07
Typical asking rent, 1 yearup 5.1%
Typical asking rent, 5 yearsup 32.5%
Typical asking rent, 10 yearsup 60.1%
Typical home value since 2000
200020132026$178,179$81,870

$83,573 in 2000 to $178,179 in 2026.

Typical asking rent
201520202026$1,573$971

$971 in 2015 to $1,573 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate5.7%
Bachelor's degree or higher28%
High school diploma or higher91.8%
Works from home12.5%
Drives to work alone77.9%
Takes public transport0.7%
Commutes 45 minutes or more10.9%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity35.2% 1.8 pts above the national average of 33.4%
Diagnosed diabetes12.6% 0.6 pts above the national average of 12%
Currently smokes16.7% 3.5 pts above the national average of 13.2%
High blood pressure38.7% 4.6 pts above the national average of 34.1%
Fair or poor general health21.4% 1.1 pts above the national average of 20.3%
No health insurance (18–64)8.5% 2.8 pts below the national average of 11.3%
Depression23.7% 1.8 pts above the national average of 21.9%
No leisure-time physical activity29.4% 4 pts above the national average of 25.4%
Arthritis28.5% 3.4 pts above the national average of 25.1%
Binge drinking15.6% same as the national average of 16%
Taking blood pressure medication78.1% 3.4 pts above the national average of 74.7%
Cancer (non-skin)7.5% same as the national average of 7.7%
Current asthma11.8% 1.4 pts above the national average of 10.4%
Coronary heart disease6.3% same as the national average of 6.2%
Routine check-up in past year79.2% 2.5 pts above the national average of 76.7%
Cholesterol screening85.3% 0.6 pts below the national average of 85.9%
Cognitive disability17.7% 2.9 pts above the national average of 14.8%
Colorectal screening66.9% 2.6 pts above the national average of 64.3%
COPD7.5% 0.9 pts above the national average of 6.6%
Visited a dentist59.8% 1.5 pts below the national average of 61.3%
Any disability36.9% 6.2 pts above the national average of 30.7%
Lacks emotional support23.6% 1.2 pts below the national average of 24.8%
Food insecurity17.1% same as the national average of 17.1%
Received food stamps14.2% same as the national average of 14.3%
Hearing disability7.2% 0.5 pts above the national average of 6.7%
High cholesterol35.6% 0.6 pts below the national average of 36.2%
Housing insecurity16.4% 2.6 pts above the national average of 13.8%
Independent living disability10% 1.6 pts above the national average of 8.4%
Lacks transport10.3% 1.1 pts above the national average of 9.2%
Loneliness35.8% 1.4 pts above the national average of 34.4%
Mammography use78% 2.1 pts above the national average of 75.9%
Poor mental health (14+ days)18.4% 1.6 pts above the national average of 16.8%
Mobility disability16.1% 2.1 pts above the national average of 14%
Poor physical health (14+ days)14.3% 0.8 pts above the national average of 13.5%
Self-care disability4.3% same as the national average of 4%
Utility shut-off threat12.2% 3.4 pts above the national average of 8.8%
Sleeps under 7 hours36.9% 0.5 pts above the national average of 36.4%
Stroke3.8% same as the national average of 3.4%
All natural teeth lost15.7% 2.7 pts above the national average of 13%
Vision disability5.5% same as the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments847
People employed6,894
Annual payroll$237,646,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 79.6% of US census tracts
FEMA ratingRelatively Low to Relatively High across the 16 census tracts this ZIP code covers
Expected annual loss81 out of 100
Community resilience71.8 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Heat wave99.2Very High at its worst in this ZIP code
Hail90.8Relatively High at its worst in this ZIP code
Earthquake82.9Relatively High at its worst in this ZIP code
Cold wave81.6Relatively High at its worst in this ZIP code
Lightning72.7Relatively High at its worst in this ZIP code
Winter weather68.1Relatively Moderate at its worst in this ZIP code
Landslide67Relatively Low at its worst in this ZIP code
Ice storm64.8Relatively Moderate at its worst in this ZIP code
River flooding59.8Relatively High at its worst in this ZIP code
Tornado49.8Relatively Moderate at its worst in this ZIP code
Wildfire43.1Relatively Low at its worst in this ZIP code
Drought41.2Very Low at its worst in this ZIP code
Strong wind37.1Relatively Low at its worst in this ZIP code
Hurricane18.3Very Low at its worst in this ZIP code
Compared with Missouri and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPMissouriUnited States
Median household income$71,783$68,920$78,538
Income per person$35,115$38,497$43,289
Poverty rate10.3%12.6%12.4%
Median home value$144,500$215,600$303,400
Median gross rent$1,351$996$1,348
Homeownership71.5%67.9%65%
Bachelor's degree or higher28%31.9%35%
Unemployment rate5.7%4.1%5.2%
Works from home12.5%11.6%13.5%
Born outside the US5.3%4.4%13.9%
Median age38.138.938.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationST LOUIS LAMBERT INTL AP, MO US6.7 km away
Rain in a year42 in
Snow in a year17 in

Average high and low by month

January40.4°F / 23.8°F2.59 in rain, 5.7 in snow
February45.8°F / 27.6°F2.23 in rain, 4.3 in snow
March56.6°F / 36.7°F3.5 in rain, 2.3 in snow
April68°F / 47°F4.73 in rain, 0.2 in snow
May77.1°F / 57.9°F4.82 in rain
June85.9°F / 67.2°F4.49 in rain
July89.6°F / 71.1°F3.93 in rain
August88.3°F / 69.3°F3.38 in rain
September81.1°F / 60.9°F2.96 in rain
October69.2°F / 49.1°F3.15 in rain
November55.5°F / 37.4°F3.42 in rain, 0.9 in snow
December44.5°F / 28.5°F2.5 in rain, 3.2 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarket9% of this ZIP code's area
Far from a supermarket52% of this ZIP code's area
No vehicle and far from a supermarket11% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Hazelwood School District82.6% of this ZIP code's land area
Ferguson-Florissant R-II School District17.4% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability48more vulnerable than 48% of US census tracts
Socioeconomic status53more vulnerable than 53% of US census tracts
Household characteristics49more vulnerable than 49% of US census tracts
Racial and ethnic minority status67more vulnerable than 67% of US census tracts
Housing type and transport32more vulnerable than 32% of US census tracts
Walkability9.8 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

63042 Hazelwood, MO3.7 km away
63034 Florissant, MO5 km away
63033 Florissant, MO5.1 km away
63134 Saint Louis, MO7.1 km away
63135 Saint Louis, MO7.2 km away
63140 Saint Louis, MO7.8 km away
63044 Bridgeton, MO9.1 km away
63074 Saint Ann, MO9.9 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

St. Louis County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area15.06 sq mi
Water area1.35 sq mi
Population density3,337 people per sq mi
Latitude, longitude38.8069, -90.3401

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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