Post Offices
Post Offices in & near Walnut, California. Operating hours, locations, phone/fax number, services information.
Walnu Post Office
Post Office in Walnut, California on S Lemon Ave. Operating hours, phone number, services information, and other locations.
Address: 280 S Lemon Ave, Walnut, CA 91788
Phone: 909-444-7901
Fax: 909-598-0524
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 8:30am - 5:00pmTuesday 8:30am - 5:00pm
Wednesday 8:30am - 5:00pm
Thursday 8:30am - 5:00pm
Friday 8:30am - 5:00pm
Saturday 9:00am - 2:00pm
Sunday Closed
Lobby Hours
Monday 5:00am - 7:00pmTuesday 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 5:00pmTuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 5:00pm
Sunday Closed