National Capitol Post Office
2 Massachusetts Ave Ne, Washington, DC 20002
Retail Hours
| Sunday | 9:00 AM - 5:00 PM |
| Monday | 9:00 AM - 7:00 PM |
| Tuesday | 9:00 AM - 7:00 PM |
| Wednesday | 9:00 AM - 7:00 PM |
| Thursday | 9:00 AM - 7:00 PM |
| Friday | 9:00 AM - 7:00 PM |
| Saturday | 9:00 AM - 5:00 PM |
Contact Info
| Phone | 202-636-1259 |
| Fax | 202-523-2928 |
| TTY | 877-889-2457 |
| Toll Free | 1-800-275-8777 (1-800-Ask-USPS®) |
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