Resident Population in Watonwan County, MN was 11.07700 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Watonwan County, MN reached a record high of 13.50000 in January of 1972 and a record low of 10.84600 in January of 2019. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Watonwan County, MN - last updated from the United States Federal Reserve on May of 2024.