Fort Calhoun is a city in Washington County, Nebraska, United States. The population was 856 at the 2000 census. Fort Calhoun Nuclear Generating Station is built on 660 acres. This historic town includes Fort Atkinson, the first fort built west of the Missouri river. Fort Calhoun apartments for rent comparison page shows most up to date rent information on Fort Calhoun apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.