Anita is a city in Cass County, Iowa, United States, platted in 1869 and incorporated in 1875. The population was 963 at the 2020 census. La…Anita is a city in Cass County, Iowa, United States, platted in 1869 and incorporated in 1875. The population was 963 at the 2020 census. Lake Anita State Park is located just outside the town. A violent F5 tornado occurred just east of the town on June 27, 1953. One person was killed and two others were injured.