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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 1555 E Holt Blvd, 91761. 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 ONTARIO, within walking distance in ONTARIO. US Post Office has 7,292 listed locations in total; this page covers the Ontario branch.
- Address
- 1555 E Holt Blvd, Ontario, CA, 91761
- Phone
- (800) 275-8777
- Website
- tools.usps.com
- Social
Questions
Where is US Post Office located?
1555 E Holt Blvd, Ontario, CA, 91761
How do I contact US Post Office?
(800) 275-8777 · https://tools.usps.com/find-location.htm?location=1376170
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
- ONTARIOONTARIO0.0 km
- United States Postal ServiceOntario0.0 km
- FedExOntario1.4 km
- The UPS StoreOntario1.8 km
- Jack Jones TruckingOntario1.8 km
- Aportstorage® ContainersOntario1.8 km
- DJ Mailing etcOntario2.0 km
- Blue Eagle IncOntario2.6 km
- PUNTO DE VENTA DE DHL EXPRESS Ontario2.7 km
- FedEx ShipSiteOntario3.5 km
- Truline PackagingRancho Cucamonga3.5 km
- US Post OfficeOntario3.0 km
- United States Postal ServiceOntario3.0 km
- DOWNTOWN ONTARIOONTARIO3.0 km
- Sav-on BagsOntario3.5 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.