Resident Population in Butte County, CA was 208.33400 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Butte County, CA reached a record high of 230.33000 in January of 2018 and a record low of 101.96900 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Butte County, CA - last updated from the United States Federal Reserve on April of 2026.