Resident Population in Carbon County, UT was 20.61300 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Carbon County, UT reached a record high of 23.85900 in January of 1983 and a record low of 15.64700 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Carbon County, UT - last updated from the United States Federal Reserve on April of 2026.