Challenge Post Office

18040 Oregon Hill Rd, Challenge, CA 95925

Contact Numbers

Phone: 530-675-2353
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

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

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

  • Business Line
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Street 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:

Forbestown
19173 New York Flat Rd
2.6 miles away

Brownsville
8975 Frenchtown Ext
2.8 miles away

Clipper Mills
12225 La Porte Rd
3.3 miles away

Dobbins
10375 Old Dobbins Rd
4.5 miles away

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