Congress Heights Post Office

400 Southern Ave SE, Washington, DC 20032

Contact Numbers

Phone: 202-523-2122
Fax: 202-574-1902
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

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

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 2:00pm
Sunday Closed

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

  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lot Parking

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:

Naval Research Laboratory
4555 Overlook Ave SW
0.7 mile away

Oxon Hill
6316 Oxon Hill Rd
0.9 mile away

Bolling AFB
10 Brookley Ave SW
1.0 mile away

Frederick Douglass
2833 Alabama Ave SE
2.0 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.


Congress Heights Post Office: 400 Southern Ave SE, Washington DC 20032 Saturday, 10 September, 10:30 am, hand written note placed on main entrance glass door, which was locked, said, Closed be back at 9:45 am. There were 5 people waiting on the steps in front of glass entry door, unable to get in. One person could see movement behind the counter. and knocked on glass window to get attention. No one from the back of the post office came forward, A person called 911 to have a "Welfare" check for the post office front counter employee. One person said he saw the front counter employee say she was leaving and would return in 15 minutes, then saw her leave in her car, which was parked in the back of the post office. Four police cars arrived first, then while the police were still on site, the person waiting said, here she returns now in her car! The police began to leave. I flagged one police car and asked if they did a report concerning this incident. I was told, No!, A person should not have wasted their (police) time, a business can "close" whenever they want! This habit (this same incident has happened more than 1 time by the same employee) by the Post Office employee should be investigated by the Post Office, and corrected.


The Mailbox Cluster needs to be repair .


there is more lying going on at this station.i had at least four or five parcels to be delivered, but no one came by. if my mail is in the station, why didn't someone leave a mail box stayed empty all day so I know no carrier was here.why have these reviews if you are not going to do anything about the?


I was notified by my neighbor that he had observed the mail carrier leaving mail outside on ground again. He has informed me that he has pictures and he has picked up mail from the yard where it has blown off the porch from the wind or put it in the slot when it was raining. (There is a mail slot for it to go inside.) When I arrived today he was angry and stopped me again. Both my and my neighbor’s mail were wet from rain and laying on the ground with a rubber band around it. We sometimes get each other’s mail and we neighborly walk it to each other’s slot. Not sure why this is happening but would like to have it addressed.


This location needs more tellers it takes up to 20 mins most visits to get to the window and be serviced. I've lived in this area for 3 years and nothing has changed.

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