Downtown Ontario Post Office - near me location, phone, and lobby, Retail, last collection open hours at today or at Saturday, Sunday



123 W Holt Blvd, Ontario, CA 91762

Contact Numbers

Phone: 909-933-3837
Fax: 909-391-0595
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 6:00am - 6:00pm
Tuesday 6:00am - 6:00pm
Wednesday 6:00am - 6:00pm
Thursday 6:00am - 6:00pm
Friday 6:00am - 6:00pm
Saturday 6:00am - 6:00pm
Sunday Closed

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday Closed
Sunday Closed

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





  • Burial Flags
  • Business Line
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • 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:

Plaza Center
1126 N Mountain Ave
1.0 mile away

Ontario
1555 E Holt Blvd
1.3 miles away

Upland
333 E Arrow Hwy
1.5 miles away

Montclair
5186 Benito St
1.7 miles away

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