Marlborough zip code
Zip code in Marlborough, MO
The location Marlborough belongs to St. Louis County, state of Missouri. Marlborough has been assigned with the zip code 63123.
The location name Marlborough is listed as acceptable by the US Postal Service so it can be used in your mailings just fine. You can also use any of the following names: Affton, Grantwood Village, Grantwood Vlg, Lakeshire, Mackenzie, Marlborough, Saint George.| Zip code | Type | Population |
|---|---|---|
| 63123 | STANDARD | 46,450 |
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