Resident Population in Benton County, IN was 8.72900 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Benton County, IN reached a record high of 11.40000 in January of 1971 and a record low of 8.62100 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Benton County, IN - last updated from the United States Federal Reserve on May of 2024.