Addyston, OH is a city located in Hamilton County, Ohio and has a land area of 0.85 square miles (2.20 km2). The water area for the city is 0.06 square miles or 0.16 km2. There is one unique zip code in Addyston, Ohio and it is 45001. The area code(s) for Addyston is 270/364/513.
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