Popularity:#1 of 3 Post Offices in Chehalis#18 of 22 Post Offices in Lewis County#380 of 520 Post Offices in Washington#22,149 in Post Offices
View Address, Phone Number, and Hours for Onalaska Post Office, a Post Office, at Highway 508, Chehalis WA.
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The Onalaska Post Office, located in Chehalis, WA, is a branch location of the United States Postal Service (USPS) that serves the Chehalis community. The customer service postal facility offers mail and package delivery services, P.O. box services, and passport services. The USPS operates as an independent agency within the federal government, supported entirely by revenues generated through its operations.You may contact the Post Office for questions about: