Ontario mailboxes and post offices

There are 27 United States Postal Service post boxes and offices available to the public in Ontario, CA. You can use any one of these locations to mail your letter or small package via USPS. For additional collection boxes in neighboring communities, see the list of post boxes in California.

Ontario Village Post Office
1118 W Mission Blvd Ste D
Directions
Public Collection Box
1930 S Bon View Ave
Directions
Public Collection Box
2526 South Grove
Directions
Public Collection Box
2313 E Philadelphia St
Directions
Public Collection Box
2598 S Archibald Ave
Directions
Public Collection Box
1871 E 4 Th St
Directions
Mailbox in Post Office Lobby
323 N Turner Ave
Directions
Public Collection Box
3450 Centre Lake Dr
Directions
Public Collection Box
3400 Inland Empire Blvd
Directions
Public Collection Box
123 W Holt Blvd
Directions
Public Collection Box
123 W Holt Blvd
Directions
Mailbox in Post Office Lobby
123 W Holt Blvd
Directions
Public Collection Box
1126 N Mountain Ave
Directions
Public Collection Box
1126 N Mountain Ave
Directions
Public Collection Box
1126 N Mountain Ave
Directions
Mailbox in Post Office Lobby
1126 N Mountain Ave
Directions
Public Collection Box
1555 E Holt Blvd
Directions
Automated Postal Center
1555 E Holt Blvd
Directions
Mailbox in Post Office Lobby
1555 E Holt Blvd
Directions
Public Collection Box
1555 E Holt Blvd
Directions
Public Collection Box
5186 Benito St
Directions
Public Collection Box
5186 Benito St
Directions
Mailbox in Post Office Lobby
5186 Benito St
Directions