Resident Population in Story County, IA was 102.49800 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Story County, IA reached a record high of 102.49800 in January of 2024 and a record low of 62.78300 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Story County, IA - last updated from the United States Federal Reserve on April of 2026.