Resident Population in Clearwater County, ID was 9.21400 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Clearwater County, ID reached a record high of 11.10000 in January of 1971 and a record low of 8.08600 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Clearwater County, ID - last updated from the United States Federal Reserve on May of 2024.