Senecaville, OH is a city located in Guernsey County, Ohio and has a land area of 38.86 square miles (100.65 km2). The water area for the city is 2.99 square miles or 7.74 km2. There is one unique zip code in Senecaville, Ohio and it is 43780. The area code(s) for Senecaville is 740.
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