Upper Marlboro zipcode
| City | Upper Marlboro |
| ZIP Code | 20775 |
| Type | PO Box |
| State Code | MD |
| State | Maryland |
ZIP code of Upper Marlboro is 20775. This place is located in Maryland state in US. To send any postal service to Upper Marlboro, you must use 20775 zipcode.
The ZIP code 20775 is also used with 1 more city name of Maryland.
- Uppr Marlboro, MD
You should avoid following 1 city name of Maryland to be used with the ZIP code 20775.
- Kettering, MD