Riverdale zipcode
| City | Riverdale |
| ZIP Code | 20737 |
| Type | Standard |
| State Code | MD |
| State | Maryland |
ZIP code of Riverdale is 20737. This place is located in Maryland state in US. To send any postal service to Riverdale, you must use 20737 zipcode.
The ZIP code 20737 is also used with 2 more city names of Maryland.
- Riverdale Park, MD
- Riverdale Pk, MD