Resident Population in Jackson County, IA was 19.39000 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Jackson County, IA reached a record high of 22.50300 in January of 1980 and a record low of 19.35000 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Jackson County, IA - last updated from the United States Federal Reserve on April of 2026.