Resident Population in Clark County, WI was 34.77400 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Clark County, WI reached a record high of 34.78500 in January of 2019 and a record low of 30.36100 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Clark County, WI - last updated from the United States Federal Reserve on May of 2024.