For example: "New York", or "Chicago"

Post Offices in Challenge

Click on the Post Office from this list of 1 Post Offices in Challenge to view the opening hours, phone number, drop-off times, services and other information.

1. USPS Post Office Challenge (CA)

18040 Oregon Hill Rd

Challenge, CA 95925

The Post Office is open Monday to Friday from 9:00 am to 1:00 pm. It is closed Saturday and Sunday.