Upperco zipcode
| City | Upperco |
| ZIP Code | 21155 |
| Type | Standard |
| State Code | MD |
| State | Maryland |
ZIP code of Upperco is 21155. This place is located in Maryland state in US. To send any postal service to Upperco, you must use 21155 zipcode.
The ZIP code 21155 is also used with 1 more city name of Maryland.
- Fowbelsburg, MD