Willamina, OR is a city located in Yamhill County, Oregon and has a land area of 54.59 square miles (141.39 km2). The water area for the city is 0.03 square miles or 0.08 km2. There is one unique zip code in Willamina, Oregon and it is 97396. The area code(s) for Willamina is 503/971.
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