Walnut Post Office

280 S Lemon Ave, Walnut, CA 91788

Contact Numbers

Phone: 909-444-7901
Fax: 909-598-0524
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

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

Last Collection Times

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

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

  • Burial Flags
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money
  • Street Parking

Visit our Links Page for links to 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:

Rowland Heights
1521 Nogales St
1.5 miles away

Diamond Bar
1317 S Diamond Bar Blvd
2.0 miles away

South Hill
1418 S Azusa Ave Ste D1
2.4 miles away

Federal Covina
170 E College St
3.2 miles away

Reviews

*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.



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