Zillah, WA is a city located in Yakima County, Washington and has a land area of 60.59 square miles (156.93 km2). The water area for the city is 0.00 square miles or 0.00 km2. There is one unique zip code in Zillah, Washington and it is 98953. The area code(s) for Zillah is 509.
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