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Map of Challenge, CA

Post Offices in Challenge, CA

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1. United States Postal Service

United States Postal Service

18040 Oregon Hill Rd, Challenge, CA 95925

CLOSED NOW:9:00 am - 1:00 pm

From Business: Visit your local Post Office™ at 18040 Oregon Hill Rd! The U.S. Postal Service® (USPS®) is the only organization in the country to regularly deliver to every residential and…