Sequim, WA is a city located in Clallam County, Washington and has a land area of 206.70 square miles (535.35 km2). The water area for the city is 5.20 square miles or 13.47 km2. There is one unique zip code in Sequim, Washington and it is 98382. The area code(s) for Sequim is 360/564.
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