Lilliwaup, WA is a city located in Mason County, Washington and has a land area of 26.48 square miles (68.58 km2). The water area for the city is 11.19 square miles or 28.98 km2. There is one unique zip code in Lilliwaup, Washington and it is 98555. The area code(s) for Lilliwaup is 360/564.
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