Diamond Farms Post Office

23 Firstfield Rd, Gaithersburg, MD 20878

Contact Numbers

Phone: 301-208-3735
Fax: 301-208-3713
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 4:00pm
Sunday Closed

Passport Walk-In Hours

Monday 9:00am - 10:00am
Tuesday Closed
Wednesday 9:00am - 10:00am
Thursday Closed
Friday 9:00am - 10:00am
Saturday Closed
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 Closed
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

*Appointments are required outside of walk-in hours to apply for or renew US Passports. Please Call or schedule online.

  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Passport Acceptance
  • Passport Photo
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • 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:

Diamond Farms Rural
7 Metropolitan Ct
0.6 mile away

Kentlands
618 Center Point Way
0.6 mile away

Gaithersburg
21 S Summit Ave
1.4 miles away

Montgomery Village
10079 Stedwick Rd
1.6 miles away

Reviews

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Never answers the phone!!!! Just plain ridiculous!
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Why for God sake no one ever picks up the phone call in this office. You are keeping my package "at customer request" I have never made.
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This post office sucks ! No one answers the phone. I sent my sister a package and the mail man admitted he delivered it to the wrong house and that he would go back to see if he could get it and delivery it to my sister and i have called over 20 times to see what they are going to do seeing it still has been not been delivered to the correct address an NO ONE ANSWERS !!!
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Since i moved to the area and this postal service is delivering my mail, i have had so many mail and packages missing. I've had neighbors bring me my mail multiple times.
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important official document was returned to an office instead being delivered - how is it possible for the usps staff to make such a mistake (not for the first time, unfortunately) - no one control their performance?
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Past 4 weeks very little mail and overdue bills and magazines on Prairie landing way 20878. New
carrier ? Delayed mail received store coupons after
it expired. .loss of $20 coupon
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i m not receive my package
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please redeliver for me
• Replied to laetitia fanya


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