Mossyrock, WA is a city located in Lewis County, Washington and has a land area of 143.61 square miles (371.95 km2). The water area for the city is 8.70 square miles or 22.53 km2. There is one unique zip code in Mossyrock, Washington and it is 98564. The area code(s) for Mossyrock is 360/564.
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