United States Government--u S Postal Service, Post Offices, Metaline 101 N Main Metaline, WA 99152 Phone : (509) 446-2425 Business Category Post Offices Government Offices & Public Schools Post Office - Metaline Falls 224 E 5th Ave Metaline Falls, WA 99153 Phone : (509) 446-2425 Post Office - Metaline Falls Business Category Post Offices Toll-Free           (800) ASK-USPS