Harpers Ferry, IA is a city located in Allamakee County, Iowa and has a land area of 80.98 square miles (209.74 km2). The water area for the city is 9.46 square miles or 24.50 km2. There is one unique zip code in Harpers Ferry, Iowa and it is 52146. The area code(s) for Harpers Ferry is 563.
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