what county is harpers ferry ia
Sponsored Topics. Harpers Ferry is a city in Taylor Township, Allamakee County, Iowa, United States. The population was 330 at the 2000 census. In 1950, Harpers Ferry had 252 residents. Harpers Ferry is located at 43Â°12â²6â³N 91Â°9â²3â³W / 43.20167Â°N 91.15083Â°W / 43.20167; -91.15083 (43.201668, -91.150696).