Resident Population in Webster County, IA was 36.48500 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Webster County, IA reached a record high of 48.39100 in January of 1970 and a record low of 35.98200 in January of 2019. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Webster County, IA - last updated from the United States Federal Reserve on May of 2024.