Resident Population in Pennington County, MN was 13.71400 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Pennington County, MN reached a record high of 15.40000 in January of 1977 and a record low of 13.26600 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Pennington County, MN - last updated from the United States Federal Reserve on May of 2024.