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US Post Office
One of 53 shipping or delivery service listings in Ontario.
About US Post Office
US Post Office is a shipping or delivery service in the public service and government sector, based in Ontario, CA. Its recorded address is 123 W Holt Blvd, 91762. The listing includes a telephone number, an official website. It is one of 53 shipping or delivery service listings tracked in Ontario; the nearest comparable listing is United States Postal Service, within walking distance. US Post Office has 7,292 listed locations in total; this page covers the Ontario branch.
- Address
- 123 W Holt Blvd, Ontario, CA, 91762
- Phone
- (800) 275-8777
- Website
- tools.usps.com
- Social
Questions
Where is US Post Office located?
123 W Holt Blvd, Ontario, CA, 91762
How do I contact US Post Office?
(800) 275-8777 · https://tools.usps.com/find-location.htm?location=1440495&y_source=1_MzM5NzY2OS00NDAtbG9jYXRpb24ud2Vic2l0ZQ==
What type of business is US Post Office?
US Post Office is a shipping or delivery service (public service and government) in Ontario.
US Post Office branches
US Post Office has 7,292 listed locations. This branch is in Ontario.
- Kailua Kona96740-2440
- Hilo96720
- Hilo96720
- Laupahoehoe96764-9997
- Kapaau96755-3001
- Kihei96753
- Lanai City96763
- Pukalani96788
- Lahaina96761
- Honolulu96817
Nearby shipping or delivery service
- United States Postal ServiceOntario0.0 km
- DOWNTOWN ONTARIOONTARIO0.0 km
- Elite Shipping | OntarioOntario0.6 km
- UPS Access Point locationOntario1.6 km
- Aportstorage® ContainersOntario1.6 km
- The UPS StoreOntario2.2 km
- Jack Jones TruckingOntario2.2 km
- PLAZA CENTERONTARIO2.4 km
- US Post OfficeOntario2.4 km
- United States Postal ServiceOntario2.4 km
- Sav-on BagsOntario3.0 km
- UPS Access Point locationOntario3.4 km
- UPS Access Point locationUPLAND3.4 km
- UPS Alliance Shipping PartnerUPLAND3.4 km
- ONTARIOONTARIO3.0 km
Cite this page
“US Post Office, Ontario — business.wiki, retrieved August 2026.” Facts on this page come from openly licensed data (Overture Maps Foundation) and are refreshed with each monthly release; sourcing is documented on the methodology page.