Resident Population in Appanoose County, IA was 12.11900 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Appanoose County, IA reached a record high of 15.60000 in January of 1977 and a record low of 12.09400 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Appanoose County, IA - last updated from the United States Federal Reserve on May of 2024.