Post Office - Galvin 4810 Galvin Rd Galvin, WA 98544 Phone : (360) 330-2234 Post Office - Galvin Business Category Post Offices Toll-Free           (800) ASK-USPS United States Government--postal Service U S, Galvin Centralia, WA 98531 Phone : (360) 330-2234 United States Government--postal Service U S, Galvin Business Category Government Offices-Federal Government Offices & Public Schools