Resident Population in Cedar County, IA was 18.30200 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Cedar County, IA reached a record high of 18.90000 in January of 1978 and a record low of 17.33000 in January of 1988. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Cedar County, IA - last updated from the United States Federal Reserve on May of 2024.