PlainZIP

Florissant, MO · standard

ZIP Code 63031

St. Louis County, Missouri - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

48,212
1,263/sq mi
$70,811
Median income
$154,300
Median home value
28.6%
Bachelor's or higher

The verdict

Florissant pairs a below-median household income with below-median home values, in a low-density, homeowner-dominated area.

48th pct
household income, US ZIPs
27th pct
home value, US ZIPs
1,263
people per sq mi
72%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 63031 against every reporting US ZIP.

ZIP code 63031 is a densely settled ZIP (a standard USPS delivery area) in Florissant, St. Louis County, Missouri, with 48,212 residents across 38.2 square miles, a density of 1,263 people per square mile, in the Chicago time zone.

ZIP 63031 lands in the middle-income range, with a median household income of $70,811 (6% above the Missouri average), while per-capita income is $35,117. Poverty here runs at 10.6%, with unemployment measured at 5.4%. Housing costs here run $154,300 for a typical home value (19% below the state average), with rent averaging $1,429 a month; 72.3% of homes are owner-occupied.

Educational attainment sits below the national norm: 28.6% of adults hold a bachelor's degree or higher, the median age is 38, and the average commute is 26 minutes. Beyond these figures, 10 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing St. Louis County, letting you compare 63031 to its immediate surroundings rather than a national baseline alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 63031

Top 5 sectors by establishment count in Florissant, MO

Which industries have the most business establishments in ZIP 63031.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 63031, Florissant, MO · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

48,212

Population

38.2

Area (sq mi)

1,263

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 63031?

38.0

Median Age

46.3%

Male

53.7%

Female

5.6%

Foreign-Born

White 48.2%
African American 41.9%
Asian 0.8%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 8.0%
Hispanic or Latino 2.5%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$70,811

Median Household Income

+6% vs state

$35,117

Per Capita Income

10.6%

Poverty Rate

5.4%

Unemployment Rate

25.7 min

Mean Commute Time

How ZIP 63031 ranks nationally

Florissant, MO household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$70,811 48th percentile higher than 48% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 55.9%
Bachelor's Degree or Higher 28.6%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

20,952

Total Housing Units

19,408

Occupied Units

1,544

Vacant Units

2.54

Avg Household Size

Occupancy Type

Owner 72.3%
Renter 27.7%

$154,300

Median Home Value

-19% vs state

$1,429

Median Rent

1967

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+3.4%

YoY Change (2024)

200

HPI Index (2000 = 100)

+100%

Total Change Since 2000

Home values in ZIP 63031 have increased 3.4% over the past year (2024). Since 2000, this ZIP has seen +100% cumulative appreciation.

Year Annual Change HPI Index
2020 +5.4% 138
2021 +13.0% 156
2022 +14.6% 178
2023 +8.6% 194
2024 +3.4% 200

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 707 business establishments in ZIP 63031, employing approximately 6,797 people with a combined annual payroll of $246,574,000.

707

Businesses

6,797

Employees

$246.6M

Annual Payroll

16

Industry Sectors

Industry Establishments % of Total
Health care and social assistance 192 27.2%
Retail trade 91 12.9%
Accommodation and food services 75 10.6%
Other services (except public administration) 73 10.3%
Finance and insurance 44 6.2%
Professional, scientific, and technical services 42 5.9%
Construction 40 5.7%
Administrative and support and waste management and remediation services 35 5.0%
Industries not classified 30 4.2%
Real estate and rental and leasing 21 3.0%
Transportation and warehousing 18 2.5%
Educational services 12 1.7%
Wholesale trade 11 1.6%
Information 8 1.1%
Manufacturing 7 1.0%
Arts, entertainment, and recreation 5 0.7%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 63031 vs 63042 →

ZIP 63031 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 63031 ranks the most populous - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 63031 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 63031 ranks #4 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
63042 Hazelwood, MO 19,602 2.5 mi
63134 Saint Louis, MO 13,638 4.8 mi
63033 Florissant, MO 43,000 4.2 mi
63034 Florissant, MO 17,761 4.3 mi
63140 Saint Louis, MO 294 5.3 mi
63135 Saint Louis, MO 21,334 5.2 mi
63044 Bridgeton, MO 10,568 5.0 mi
63114 Saint Louis, MO 36,201 7.6 mi
63074 Saint Ann, MO 15,164 6.2 mi
62028 Elsah, IL 1,276 10.2 mi

More ZIP Codes in St. Louis County

63021 standard
Ballwin, MO
Pop: 56,261
63129 standard
Saint Louis, MO
Pop: 52,718
63123 standard
Saint Louis, MO
Pop: 49,308
63136 standard
Saint Louis, MO
Pop: 48,560
63026 standard
Fenton, MO
Pop: 44,124
63033 standard
Florissant, MO
Pop: 43,000

Related Areas

St. Louis County Florissant, MO Missouri

Frequently Asked Questions

What county is ZIP code 63031 in? ▼
ZIP code 63031 (Florissant) is located in St. Louis County, Missouri. St. Louis County contains multiple ZIP codes, see the full list at /counties/st-louis-mo-29189.
What is the population of ZIP code 63031? ▼
ZIP code 63031 in Florissant, MO has a population of 48,212 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 63031? ▼
The median household income in ZIP 63031 is $70,811, which is 7% below the national average of $76,288.
What is the average home value in ZIP 63031? ▼
The median home value in ZIP 63031 is $154,300, which is 45% below the national average of $278,155.
What is the demographic makeup of ZIP 63031? ▼
The largest racial group in ZIP 63031 is White at 48.2%. Hispanic or Latino residents make up 2.5% of the population.
How many businesses are in ZIP code 63031? ▼
ZIP code 63031 has 707 business establishments employing approximately 6,797 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 63031? ▼
The top industries by establishment count in ZIP 63031 are: Health care and social assistance (192), Retail trade (91), Accommodation and food services (75). There are 16 industry sectors represented in total.
How have home values changed in ZIP code 63031? ▼
According to the FHFA House Price Index, home values in ZIP 63031 increased by 3.4% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 100%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 63031? ▼
In ZIP code 63031, 55.9% of residents aged 25+ have a high school diploma or higher, and 28.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 63031? ▼
The mean commute time for workers in ZIP code 63031 is 25.7 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 63031? ▼
In ZIP code 63031, approximately 72.3% of occupied housing units are owner-occupied and 27.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 63031? ▼
The poverty rate in ZIP code 63031 is 10.6% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.