Hiram, OH is a city located in Portage County, Ohio and has a land area of 25.17 square miles (65.19 km2). The water area for the city is 0.22 square miles or 0.57 km2. There is one unique zip code in Hiram, Ohio and it is 44234. The area code(s) for Hiram is 330/234/440.
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