Resident Population in Iron County, UT was 64.21100 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Iron County, UT reached a record high of 64.21100 in January of 2023 and a record low of 12.17700 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Iron County, UT - last updated from the United States Federal Reserve on May of 2024.