Clarksburg Post Office
22505 Gateway Center Dr, Clarksburg, MD 20871
Retail Hours
| Sunday | Closed |
| Monday | 9:00 AM - 5:00 PM |
| Tuesday | 9:00 AM - 5:00 PM |
| Wednesday | 9:00 AM - 5:00 PM |
| Thursday | 9:00 AM - 5:00 PM |
| Friday | 9:00 AM - 5:00 PM |
| Saturday | 9:00 AM - 12:00 PM |
Contact Info
| Phone | 301-540-0856 |
| Fax | 301-428-1335 |
| TTY | 877-889-2457 |
| Toll Free | 1-800-275-8777 (1-800-Ask-USPS®) |
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