Marlborough, MO ZIP Codes
2 ZIP codes serve Marlborough, Missouri: 63123 and 63119. Together they are home to 83,258 residents in 36,231 households. That is more than the 2,157 people counted inside Marlborough village limits, because these ZIP codes reach past its boundary. Median household income ranges from $77,055 in 63123 to $106,183 in 63119.
Marlborough village limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 2,157 |
| Households | 1,340 |
| Median household income | $50,300 |
| Median home value | $191,600 |
| Median age | 32.3 |
| Median rent | $990 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 83,258 |
| Households (sum of ZIP codes) | 36,231 |
| Median household income, range across ZIP codes | $77,055 (63123) to $106,183 (63119) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $88,693 |
| Homeowners | 74.2% |
| Households with kids under 18 | 24.8% |
| Moved in the past year | 10.1% |
| Carrier routes in EDDM2GO's route library | 86 routes, 37,203 homes (2 of 2 ZIP codes) |
Top facts
- Highest median household income in Marlborough: 63119 ($106,183)
- Most residents: 63123 (49,077 people)
- Highest homeownership: 63123 (74.9% own their home)
- Most households with kids: 63119 (27.1% of households)
- Most new movers: 63123 (10.3% moved in last year)
- Youngest median age: 63123 (40.9 years)
- Highest median home value: 63119 ($351,100)
Every ZIP code in Marlborough
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 63123 | Saint Louis | 49,077 | 21,755 | $77,055 | $219,400 | 74.9% | 23.3% | 10.3% | 45 | 23,665 | 1% of its land |
| 63119 | Saint Louis | 34,181 | 14,476 | $106,183 | $351,100 | 73.2% | 27.1% | 9.8% | 41 | 15,689 | 1% of its land |
A ZIP code is listed for Marlborough when at least 10% of its land lies inside Marlborough village limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Marlborough. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Marlborough.
Counties
- St. Louis County — 46 ZIP codes
Nearby cities sharing these ZIP codes
- Affton — 1 ZIP code
- Concord — 2 ZIP codes
- Crestwood — 2 ZIP codes
- Webster Groves — 1 ZIP code
- Shrewsbury — 1 ZIP code
Price a mailing to Marlborough ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Marlborough, MO?
- 63123 and 63119. A ZIP code is listed for Marlborough when at least 10% of its land lies inside Marlborough village limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Marlborough.
- What is the population of Marlborough, MO?
- The Census Bureau counts 2,157 residents inside Marlborough village limits (ACS 2020–2024). The 2 ZIP codes that serve Marlborough hold 83,258 residents in all.
- What is the median household income in Marlborough, MO?
- $50,300 inside Marlborough village limits, per the Census Bureau. Across its ZIP codes the medians run from $77,055 to $106,183.
- Which Marlborough ZIP code has the highest median household income?
- 63119, at $106,183, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Marlborough, MO?
- For the 2 of 2 ZIP codes in EDDM2GO's stored route library: 86 carrier routes reaching 37,203 residential and 2,138 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.