Waldorf Carrier Annex Post Office

NOTICE: The Postal Service is an essential government service, and will remain open wherever possible.

110 Paul Mellon Ct, Waldorf, MD 20602

Contact Numbers

Phone: 301-705-7003
Fax: 301-705-5426
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Last Collection Times

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

Bulk Mail Acceptance Hours

Monday 9:30am - 12:30pm, 1:30pm - 5:30pm
Tuesday 9:30am - 12:30pm, 1:30pm - 5:30pm
Wednesday 9:30am - 12:30pm, 1:30pm - 5:30pm
Thursday 9:30am - 12:30pm, 1:30pm - 5:30pm
Friday 9:30am - 12:30pm, 1:30pm - 5:30pm
Saturday Closed
Sunday Closed

*This facility does not process US Passports applications or renewals. Check nearby locations below.

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Business Line
  • Pickup Accountable Mail
  • Pickup Hold Mail

Visit our Links Page for 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:

150 Post Office Rd
0.1 mile away

Saint Charles Center
11110 Mall Cir
0.8 mile away

White Plains
4660 Crain Hwy
2.2 miles away

6425 Leonardtown Rd
3.4 miles away


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Today, whomever the mail carrier is, almost took out my mailbox. She drives too darn fast for my private driveway. This IS NOT first time I have complained about her driving like that. It needs to stop. Change drivers, do something.


8/27/19 I had to spend hours there to obtain a certified letter that had not been delivered weeks prior to that date. It could not be found with all in office searching for it. That in itself was a large problem for me, a senior 81 year old female that had to use cane to get in the facility. I could not believe the total disorganization of the place. We had a great Asian lady who had been replaced by current one. Since then the new female, tosses package on my chair out front, without ever ringing doorbell I do not have or knocking at door, that I do have. This is her regular routine, as I have witnessed same to others in my courtyard. Asian lady was pleasant and helpful to me always, if I approached the vehicle while on the cane to give her a letter to be mailed, she got out to come from me. This one - not so much of anything pleasant or helpful. Employees of post office are well paid, with generous benefits. Customers deserve better in the Waldorf, Md. community of Coventry Manor.

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