Resident Population in Jones County, IA was 20.90000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Jones County, IA reached a record high of 20.90000 in January of 2023 and a record low of 19.03100 in January of 1987. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Jones County, IA - last updated from the United States Federal Reserve on May of 2024.