USPS Post Office Fort Mcnair - Washington
300 A St, 20319 Washington
Today
Today's opening hours
This week's opening hours
Retail
- Monday 10:00 am to 2:00 pm
- Tuesday 10:00 am to 2:00 pm
- Wednesday 10:00 am to 2:00 pm
- Thursday 10:00 am to 2:00 pm
- Friday 10:00 am to 2:00 pm
- Saturday Closed
- Sunday Closed
Other opening hours
Call Referral
- Monday to Friday
- 10:00 am to 2:00 pm
- Saturday and Sunday
- Closed
Lobby
- Monday to Friday
- 10:00 am to 2:00 pm
- Saturday and Sunday
- Closed
PO Box Access
- Monday to Friday
- 10:00 am to 2:00 pm
- Saturday and Sunday
- Closed
Opening hours updated on 11/07/2026
Report a changeThis Post Office at a glance
Opening hours of USPS Post Office Fort Mcnair - Washington: Monday to Friday from 10:00 am to 2:00 pm; closed Saturday and Sunday.
- Opening hours a week
- 20h
- Opening hours a week
- Days open, Monday to Friday
- 5/7
- Days open, Monday to Friday
- Earliest opening, Monday to Friday
- 10:00 am
- Earliest opening, Monday to Friday
- Latest closing, Monday to Friday
- 2:00 pm
- Latest closing, Monday to Friday
- Open all day
- No break
- Open all day
Special days ahead
Public holidays, closures and special opening hours over the next two months.
- Wednesday, November 11 Veterans Day Opening hours not confirmed
- Thursday, November 26 Thanksgiving Day Opening hours not confirmed
- Friday, December 25 Christmas Opening hours not confirmed
- Friday, January 1 New Year’s Day Opening hours not confirmed
Services
Services Available: 4
Parking 1
Contacts 3
Last Collection 5
Sending from this Post Office
- First-Class Mail from From $0.65 up to Postcards
- Shipping Services from From $7.90 up to USPS Ground Advantage (2–5 days)
Indicative rates subject to change by the postal operator.
- Open
- Closing soon
- Closed
- Opening hours not confirmed
- This address
Practical information
- Type
- Post OfficeA United States Postal Service Post Office: stamps, sending and collecting letters and packages, and the USPS counter services.
- Address
- 300 A St, 20319 Washington
- State
- District of Columbia
- Official website
- usps.com
Good to know
USPS Post Office Fort Mcnair - Washington is in Washington, at 300 A St. It opens on weekdays only, 5 days a week.
When it is closed, the nearest other offices are USPS Post Office Southwest - Washington (0.6 mi) and USPS Post Office Ford - Washington (0.9 mi).
The next public holiday is Veterans Day, Wednesday, November 11. Opening hours often change that day: check them before you go.
Frequently asked questions
Is USPS Post Office Fort Mcnair - Washington open on Saturday?
No It is closed on Saturday.
Is USPS Post Office Fort Mcnair - Washington open on Sunday?
No It is closed on Sunday.
What time does USPS Post Office Fort Mcnair - Washington close?
It closes Monday to Friday at 2:00 pm.
Is there a cash machine?
This Post Office does not list a cash machine.