St. John, MO ZIP Codes
One ZIP code serves St. John, Missouri: 63114. Together they are home to 33,969 residents in 15,031 households. That is more than the 6,527 people counted inside St. John city limits, because these ZIP codes reach past its boundary.
St. John city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 6,527 |
| Households | 2,741 |
| Median household income | $53,755 |
| Median home value | $106,300 |
| Median age | 36 |
| Median rent | $1,159 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 33,969 |
| Households (sum of ZIP codes) | 15,031 |
| Median household income, range across ZIP codes | $55,870 (63114) to $55,870 (63114) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $55,870 |
| Homeowners | 58.2% |
| Households with kids under 18 | 26.9% |
| Moved in the past year | 10.3% |
| Carrier routes in EDDM2GO's route library | 37 routes, 15,082 homes (1 of 1 ZIP codes) |
Every ZIP code in St. John
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 63114 | Saint Louis | 33,969 | 15,031 | $55,870 | $116,800 | 58.2% | 26.9% | 10.3% | 37 | 16,048 | 16% of its land |
A ZIP code is listed for St. John when at least 10% of its land lies inside St. John city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is St. John. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside St. John.
Counties
- St. Louis County — 46 ZIP codes
Nearby cities sharing these ZIP codes
- Overland — 2 ZIP codes
Price a mailing to St. John ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in St. John, MO?
- 63114. A ZIP code is listed for St.
- What is the population of St. John, MO?
- The Census Bureau counts 6,527 residents inside St. John city limits (ACS 2020–2024). The 1 ZIP code that serve St. John hold 33,969 residents in all.
- What is the median household income in St. John, MO?
- $53,755 inside St. John city limits, per the Census Bureau. Across its ZIP codes the medians run from $55,870 to $55,870.
- How many carrier routes and mailboxes are in St. John, MO?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 37 carrier routes reaching 15,082 residential and 965 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.