Florissant, MO ZIP Codes
3 ZIP codes serve Florissant, Missouri: 63031, 63033 and 63034. Together they are home to 112,160 residents in 43,738 households. That is more than the 51,773 people counted inside Florissant city limits, because these ZIP codes reach past its boundary. Median household income ranges from $66,776 in 63033 to $103,905 in 63034.
Florissant city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 51,773 |
| Households | 21,229 |
| Median household income | $65,318 |
| Median home value | $148,800 |
| Median age | 37.6 |
| Median rent | $1,288 |
All 3 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 112,160 |
| Households (sum of ZIP codes) | 43,738 |
| Median household income, range across ZIP codes | $66,776 (63033) to $103,905 (63034) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $74,229 |
| Homeowners | 72.9% |
| Households with kids under 18 | 29.9% |
| Moved in the past year | 9.7% |
| Carrier routes in EDDM2GO's route library | 79 routes, 43,899 homes (3 of 3 ZIP codes) |
Top facts
- Highest median household income in Florissant: 63034 ($103,905)
- Most residents: 63031 (50,196 people)
- Highest homeownership: 63034 (91.0% own their home)
- Most households with kids: 63034 (33.3% of households)
- Most new movers: 63033 (10.8% moved in last year)
- Youngest median age: 63031 (38.0 years)
- Highest median home value: 63034 ($239,300)
Every ZIP code in Florissant
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 63031 | Florissant | 50,196 | 19,408 | $70,811 | $154,300 | 72.3% | 30.3% | 9.5% | 35 | 19,859 | 53% of its land; mailing city |
| 63033 | Florissant | 43,056 | 17,660 | $66,776 | $173,700 | 66.6% | 28.3% | 10.8% | 31 | 18,258 | 37% of its land; mailing city |
| 63034 | Florissant | 18,908 | 6,670 | $103,905 | $239,300 | 91.0% | 33.3% | 7.8% | 13 | 7,216 | mailing city |
A ZIP code is listed for Florissant when at least 10% of its land lies inside Florissant city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Florissant. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Florissant.
Counties
- St. Louis County — 46 ZIP codes
Nearby cities sharing these ZIP codes
- Hazelwood — 3 ZIP codes
- Black Jack — 1 ZIP code
- Old Jamestown — 1 ZIP code
Price a mailing to Florissant ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Florissant, MO?
- 63031, 63033 and 63034. A ZIP code is listed for Florissant when at least 10% of its land lies inside Florissant city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Florissant.
- What is the population of Florissant, MO?
- The Census Bureau counts 51,773 residents inside Florissant city limits (ACS 2020–2024). The 3 ZIP codes that serve Florissant hold 112,160 residents in all.
- What is the median household income in Florissant, MO?
- $65,318 inside Florissant city limits, per the Census Bureau. Across its ZIP codes the medians run from $66,776 to $103,905.
- Which Florissant ZIP code has the highest median household income?
- 63034, at $103,905, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Florissant, MO?
- For the 3 of 3 ZIP codes in EDDM2GO's stored route library: 79 carrier routes reaching 43,899 residential and 1,418 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.