Clarksburg Post Office

22505 Gateway Center Dr, Clarksburg, MD 20871

Contact Numbers

Phone: 301-540-0856
Fax: 301-428-1335
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 1:30pm
Sunday Closed

Passport Acceptance Hours

Monday 10:30am - 3:30pm
Tuesday 10:30am - 3:30pm
Wednesday 10:30am - 3:30pm
Thursday 10:30am - 3:30pm
Friday 10:30am - 3:30pm
Saturday 10:30am - 11:30am
Sunday Closed

  • Visit our Passport FAQ page for a complete overview of what to bring, what you need to know, and how long it will take.
  • You will need two forms of Identification with copies.
  • A passport quality photo. Available at location.
  • The appropriate application form printed and filled out, and the required fee for applying or renewing.
  • You can find up to date costs, information, and forms at the State Departments Travel Site

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Passport Acceptance
  • Passport Photo
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lobby has Vending
  • Street Parking

Visit our Links Page for links to Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

12774 Wisteria Dr
2.1 miles away

15300 Barnesville Rd
2.3 miles away

Montgomery Village
10079 Stedwick Rd
3.6 miles away

26400 Woodfield Rd
3.9 miles away


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Hi, the "review" portion of this message is that the phone number listed above seems to be perpetually busy. I do have a delivery issue which I would like to discuss, however, and I'm hopeful that the individual reading this may be able to forward my request to someone who can help me. The email address I have provided is the best way to contact me. In a nutshell, I wish to request a change in the location for my package deliveries. Packages too bulky to fit in the NDCBU are often left in back of my house. My preferred location is to deliver them to my front door. Thanks for any help that you can provide.


An appointment is no longer necessary for passport renewal - they operate on a walk-in / first-come-first-serve basis only.


Man at the front desk was unbelievably rude- very abrupt, rolling his eyes, and almost hostile in conversation.

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