Resident Population in Lake County, OR was 8.29300 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Lake County, OR reached a record high of 8.38500 in January of 2022 and a record low of 6.30000 in January of 1974. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Lake County, OR - last updated from the United States Federal Reserve on May of 2024.