Resident Population in Cerro Gordo County, IA was 42.49300 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Cerro Gordo County, IA reached a record high of 49.70000 in January of 1973 and a record low of 42.40800 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Cerro Gordo County, IA - last updated from the United States Federal Reserve on April of 2026.