Granite Falls, WA is a city located in Snohomish County, Washington and has a land area of 238.67 square miles (618.15 km2). The water area for the city is 1.89 square miles or 4.90 km2. There is one unique zip code in Granite Falls, Washington and it is 98252. The area code(s) for Granite Falls is 360/564.
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