Zip Code 63031
Florissant, Missouri — St. Louis County
📍 ZIP code 63031 is in Florissant, St. Louis County, Missouri.
ZIP code 63031 is located in Florissant, St. Louis County, Missouri. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 50,258. The area code for ZIP code 63031 is 314.
Quick Answer
Zip code 63031 is in Florissant, Missouri (St. Louis County). It has a population of 50,258, median household income of $71,783, and median home value of $144,500.
Population
50,258
Income
$71,783
Home Value
$144,500
Climate
90°F / 24°F
About Zip Code 63031
Zip code 63031 is located in Florissant, Missouri, within St. Louis County. Home to approximately 50,258 residents, this area sits at an elevation of 547 ft and falls within the Central (CST/CDT) timezone. The local area code is 314.
The median household income is $71,783 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $144,500, and the cost of living index is 66 (34% below the national average of 100).
Summers average a high of 90°F while winters drop to 24°F. The area receives about 42 in of rain and 17 in of snow annually. The zip code covers 14.7 square miles of land area and 1.1 square miles of water.
Key Statistics
50,258
$71,783
$144,500
Central (CST/CDT)
314
547 ft
14.7 sq mi
38.1
21,159
Advertisement
Compare With Nearby Zip Codes
| Metric | 63031 | 63042 | 63034 | 63033 | 63044 | 63134 |
|---|---|---|---|---|---|---|
| City | Florissant, MO | Hazelwood, MO | Florissant, MO | Florissant, MO | Bridgeton, MO | Saint Louis, MO |
| Population | 50,258 | 17,953 | 19,557 | 42,258 | 10,510 | 13,460 |
| Median Income | $71,783 | $49,384 | $110,491 | $63,979 | $76,094 | $42,222 |
| Home Value | $144,500 | $138,800 | $234,200 | $157,400 | $232,200 | $92,000 |
| Cost of Living | 66 | 60 | 104 | 65 | 87 | 60 |
| Median Age | 38.1 | 35.9 | 40 | 37.1 | 44 | 29.2 |
Cost of Living
100 = National Average. Florissant's cost of living is 34% below the national average.
vs. State Avg
Below
Affordability
Very Affordable
Income-to-Home
2.0x
Demographics
Zip code 63031 has a population of 50,258 people with a median age of 38.1. There are 21,159 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Florissant (63031) population trend from 2010 to 2024
↑ 24.3%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
90°F
24°F
42 in
17 in
Florissant experiences hot summers with average highs around 90°F. Winters are cool with lows averaging 24°F. The area receives about 17 in of snow per year.
Advertisement
Housing & Economy
Median Home Value
$144,500
Median Household Income
$71,783
With 21,159 housing units across 14.7 square miles, 63031 has a housing density of 1,439 units per square mile. The home price-to-income ratio is 2.0x.
Location & Geography
Latitude
38.8120°
Longitude
-90.3536°
Land Area
14.7 sq mi
Water Area
1.1 sq mi
Nearby Zip Codes
Zip codes closest to 63031 (Florissant, MO) with distances:
All Zip Codes in Florissant, MO
Other zip codes serving Florissant:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 63031's $71,783. A way to compare Florissant to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 63031 (Florissant, MO). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
Explore Missouri
Popular "Near Me" Searches
Advertisement
People Also Ask
What zip code is Florissant, Missouri?
Florissant, Missouri uses zip code 63031 along with 2 other zip codes.
What county is zip code 63031 in?
Zip code 63031 is located in St. Louis County, Missouri.
What is the population of zip code 63031?
The population of zip code 63031 is 50,258 with a median age of 38.1.
Is 63031 in Florissant, Missouri?
Yes, zip code 63031 is in Florissant, St. Louis County, Missouri. The area code is 314.
Frequently Asked Questions
What city is zip code 63031 in?
Zip code 63031 is in Florissant, Missouri. It is part of St. Louis County and uses the Central (CST/CDT) timezone.
What is zip code 63031?
Zip code 63031 is a U.S. postal code in Florissant, Missouri (St. Louis County). It has a population of 50,258 and covers 14.7 square miles.
What is the population of zip code 63031?
The population of zip code 63031 (Florissant, MO) is 50,258 with a median age of 38.1. There are approximately 21,159 housing units in this area.
What is the median income in zip code 63031?
The median household income in zip code 63031 (Florissant, MO) is $71,783 per year. The cost of living index is 66 (100 = national average).
What is the average home price in zip code 63031?
The median home value in zip code 63031 (Florissant, MO) is $144,500. The cost of living index is 66 compared to the national average of 100.
What county is zip code 63031 in?
Zip code 63031 is located in St. Louis County, Missouri. The primary city is Florissant.
What is the area code for zip code 63031?
Zip code 63031 in Florissant, MO uses area code 314. It is located in the Central (CST/CDT) timezone.
Is zip code 63031 a good place to live?
Zip code 63031 (Florissant, MO) has a cost of living index of 66 (100 = national average), a median household income of $71,783, and median home values of $144,500. The median age is 38.1. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 63031?
The cost of living index for zip code 63031 (Florissant, MO) is 66, where 100 represents the national average. This area is below the national average. Median home value: $144,500.
What schools serve zip code 63031?
Zip code 63031 in Florissant, Missouri is served by the local school district of St. Louis County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
People Also Searched For
Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.