Hamersville, OH is a city located in Brown County, Ohio and has a land area of 37.93 square miles (98.24 km2). The water area for the city is 0.00 square miles or 0.00 km2. There is one unique zip code in Hamersville, Ohio and it is 45130. The area code(s) for Hamersville is 326/937/513/937.
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