Resident Population in St. Louis County, MN was 200.79400 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in St. Louis County, MN reached a record high of 222.22900 in January of 1980 and a record low of 195.92800 in January of 2006. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in St. Louis County, MN - last updated from the United States Federal Reserve on April of 2026.