Post Office - Skull Valley 3085 S Iron Springs Rd Skull Valley, AZ 86338 Phone : (928) 442-3410 Post Office - Skull Valley Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (928) 442-3309 United States Government--postal Service, Skull Valley Prescott, AZ 86301 Phone : (928) 442-3410 United States Government--postal Service, Skull Valley Business Category Government Offices-Federal Government Offices & Public Schools