Post Offices List in Riverdale City, Maryland:
| Kenilworth Post Office | 6270 Kenilworth Ave, Riverdale, MD 20737 |
| Riverdale Post Office | 6411 Baltimore Ave, Riverdale, MD 20737 |
| Kenilworth Post Office | 6270 Kenilworth Ave, Riverdale, MD 20737 |
| Riverdale Post Office | 6411 Baltimore Ave, Riverdale, MD 20737 |