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Postal Rio Oso Post Office
2156 Rio Oso Rd, Rio Oso, CA 95674
Phone: 530-633-2615
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)
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
Monday 4:45pm
Tuesday 4:45pm
Wednesday 4:45pm
Thursday 4:45pm
Friday 4:45pm
Saturday 10:30am
Sunday Closed
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
Sutter County