United States Government--postal Service, Malo 1560 N Highway 21 Curlew, WA 99118 Phone : (509) 779-4355 Business Category Government Offices-Federal Government Offices & Public Schools Post Office - Malo 17500 N Highway 21 Malo, WA 99150 Phone : (509) 779-4355 Post Office - Malo Business Category Post Offices Toll-Free           (800) ASK-USPS