Resident Population in Kandiyohi County, MN was 44.67400 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Kandiyohi County, MN reached a record high of 44.67400 in January of 2024 and a record low of 30.54800 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Kandiyohi County, MN - last updated from the United States Federal Reserve on April of 2026.