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Sherrie L Michalski (Postmaster)
sherrie.l.michalski@usps.gov
28611 N Us Highway 101
Lilliwaup, WA 98555
Lilliwaup, WA 98555
The Lilliwaup Post Office is located in the state of Washington within Mason County. This location serves 599 Lilliwaup residents with a median income of $29,911. It's estimated that approximately 956 packages pass through this post office each year.