Rio Oso Post Office

2156 Rio Oso Rd, Rio Oso, CA 95674

Contact Numbers

Phone: 530-633-2615
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

Monday 8:00am - 5:00pm
Tuesday 8:00am - 5:00pm
Wednesday 8:00am - 5:00pm
Thursday 8:00am - 5:00pm
Friday 8:00am - 5:00pm
Saturday 7:30am - 10:30am
Sunday Closed

Last Collection Times

Monday 4:45pm
Tuesday 4:45pm
Wednesday 4:45pm
Thursday 4:45pm
Friday 4:45pm
Saturday 10:30am
Sunday Closed

Bulk Mail Acceptance Hours

Monday 1:00pm - 5:00pm
Tuesday 1:00pm - 5:00pm
Wednesday 1:00pm - 5:00pm
Thursday 1:00pm - 5:00pm
Friday 1:00pm - 5:00pm
Saturday 7:30am - 10:30am
Sunday Closed

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

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Philatelic Services
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lot 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:

Nicolaus
2900 Garden Hwy
2.9 miles away

Wheatland
404 4th St
5.0 miles away

Olivehurst
4982 Olivehurst Ave
5.5 miles away

Pleasant Grove
3126 Howsley Rd
5.7 miles away

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