Post Offices

Post Offices in & near Greenville, California. Operating hours, locations, phone/fax number, services information.

Challeng Post Office

Post Office in Challenge, California on Oregon Hill Rd. Operating hours, phone number, services information, and other locations.

Address: 18040 Oregon Hill Rd, Challenge, CA 95925
Phone: 530-675-2353
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 9:00am - 1:00pm
Tuesday 9:00am - 1:00pm
Wednesday 9:00am - 1:00pm
Thursday 9:00am - 1:00pm
Friday 9:00am - 1:00pm
Saturday Closed
Sunday Closed

Lobby Hours

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 1:00pm
Tuesday 1:00pm
Wednesday 1:00pm
Thursday 1:00pm
Friday 1:00pm
Saturday 10:45am
Sunday Closed