Gwynn Oak Post Office

6101 Liberty Rd, Gwynn Oak, MD 21207

Contact Numbers

Phone: 410-944-2435
Fax: 410-944-8879
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 7:00am - 5:30pm
Tuesday 7:00am - 5:30pm
Wednesday 7:00am - 5:30pm
Thursday 7:00am - 5:30pm
Friday 7:00am - 5:30pm
Saturday 7:00am - 2:30pm
Sunday Closed

Last Collection Times

Monday 4:30pm
Tuesday 4:30pm
Wednesday 4:30pm
Thursday 4:30pm
Friday 4:30pm
Saturday 2:15am
Sunday Closed

Passport Appointment Hours*

Monday 10:00am - 3:00pm
Tuesday 10:00am - 3:00pm
Wednesday 10:00am - 3:00pm
Thursday 10:00am - 3:00pm
Friday 10:00am - 3:00pm
Saturday 10:00am - 12:00pm
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

*An appointment is required to apply for or renew US Passports. Please Call or schedule online.

  • Business Line
  • 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
  • Sure Money
  • Lobby has Copier
  • Lobby has Fax
  • Lot Parking
  • Passport Appointment Hours

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:

1325 Bedford Ave
1.6 miles away

3500 Dolfield Ave
1.6 miles away

Pikesville Carrier Annex
3703 Old Court Rd
1.7 miles away

Security Sq
6901 Security Blvd
1.8 miles away


*Comments below are not read by postal employees. Please do not post personal information.

*By clicking Submit, you agree to our Privacy Policy & Terms of Use.


The carriers should know better, than to leave medical supplies on the steps of an apartment building. My package was taken, it makes more sense to have the customer pick up a baggage if not at home. Anytime a get a package my nerves are on edge, because I don’t know if it will arrive.


I was sent a priority mail for over 3weeks now and I have not received it. It has been showing me forwarded and the Gwynn post office is not picking up my calls. How can I go about this as to get my mail? I don’t mind coming in person to pick up this mail because is very important to me. They are really frustrating me at this point.


I had my passport processed at this location. The staff is EXCELLENT! Mr. Brooks service was exceptional. The staff is very knowledgeable, efficient and thorough!


Went to Gwynn Oak Post Office on 01-04-2021 to get rent sent certified mail was told it will be at its destination at 01-08-2021 as of today my rental office still have not received it was told it is going to its other destribution office I have never had this problem since I been getting my rent certified had this problem


We have not gotten our mail until 4 or 5 pm, this week. Today not at all. Very unusual for us all. Bill's placed in the mailbox at 7am are still there. Hmmm. Why, just would like to know.


Up until about a week and a half ago, the post office was on point and my mail was being delivered in a more than satisfactory manner. As of late, I have gotten i piece of mail with the last 6 days. What in the ham sandwich is going on? I know what I read on social media, but what is the real truth, but will it change? Please explain. We are already living in what seems to be a made-for-television movie and don't need any more drama added to what now exisits.


I want to change post office for delivery. The Pikesville office is 0.6 miles from my house, as apposed to Gwynn Oak 1.6 miles. How can this be achieved.

* is not a part of, or affiliated with, the official United States Postal Service (USPS).