Ontario Post Office Contact Information
Address, Phone Number, and Hours for an Post Office in Ontario, California.
| Name | Ontario Post Office |
| Address | 1555 East Holt Boulevard, Ontario CA 91761 Map |
| Phone | (909) 933-3837 |
| Website | |
| Hours |
Map of Ontario Post Office
Post Office in near by County
Post Office near Ontario
About Ontario Post Office
The Ontario Post Office, located in Ontario, CA, is a branch location of the United States Postal Service (USPS) that serves the Ontario community. The customer service postal facility offers mail and package delivery services, P.O. box services, and passport services. The USPS operates as an independent agency within the federal government, supported entirely by revenues generated through its operations.
Interested parties may contact Post Office for questions about:
- Ontario, California Post Office hours and locations
- PO Box services in Ontario
- Mail and package delivery services
- Postage rates
- Passport services
- San Bernardino County, California Post Office jobs and employment