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Post Offices in Ontario

Click on the Post Office from this list of 9 Post Offices in Ontario to view the opening hours, phone number, drop-off times, services and other information.

1. USPS Post Office Ontario (WI)

Ontario, WI 54651

The Post Office is open Monday to Wednesday and on Friday from 9:00 am to 1:00 pm and on Saturday from 8:30 am to 9:15 am. It is closed on Thursday and on Sunday.

2. USPS Post Office Ontario (OR)

Ontario, OR 97914

The Post Office is open Monday to Wednesday and on Friday from 8:30 am to 11:30 am and from 12:00 pm to 2:00 pm. It is closed on Thursday and Saturday and Sunday.

3. USPS Post Office Ontario (NY)

2001 Furguson St

Ontario, NY 14519

The Post Office is open Monday to Wednesday and on Friday from 9:00 am to 4:00 pm and on Saturday from 9:00 am to 11:00 am. It is closed on Thursday and on Sunday.

4. USPS Post Office Ontario (OH)

3656 Park Ave W

Ontario, OH 44862

The Post Office is open Monday to Wednesday and on Friday from 10:00 am to 1:00 pm and from 1:45 pm to 4:45 pm and on Saturday from 8:45 am to 11:45 am. It is closed on Thursday and on Sunday.

5. USPS Post Office Ontario (CA)

1555 E Holt Blvd

Ontario, CA 91761

The Post Office is open Monday to Wednesday and Friday to Sunday from 12:01 am to 11:59 pm. It is closed on Thursday.

6. USPS Village Post Office (VPO) Ontario

1118 W Mission Blvd Ste D

Ontario, CA 91762

The Post Office is open Monday to Wednesday and on Friday from 9:00 am to 7:00 pm and Saturday and Sunday from 10:00 am to 5:00 pm. It is closed on Thursday.

7. USPS Post Office Plaza Center - Ontario (CA)

1126 N Mountain Ave

Ontario, CA 91762

The Post Office is open Monday to Wednesday and on Friday from 8:30 am to 5:00 pm. It is closed on Thursday and Saturday and Sunday.

8. USPS Post Office Downtown Ontario - Ontario (CA)

123 W Holt Blvd

Ontario, CA 91762

The Post Office is open Monday to Wednesday and on Friday from 9:00 am to 5:00 pm. It is closed on Thursday and Saturday and Sunday.

9. USPS Post Office Cpu Meijers 890

1355 N Lexington Springmill Rd

Ontario, OH 44906

The Post Office is open Monday to Wednesday and Friday to Sunday from 7:00 am to 11:00 pm. It is closed on Thursday.