Williamsfield, OH is a city located in Ashtabula County, Ohio and has a land area of 35.45 square miles (91.82 km2). The water area for the city is 0.11 square miles or 0.28 km2. There is one unique zip code in Williamsfield, Ohio and it is 44093. The area code(s) for Williamsfield is 440.
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