Resident Population in Montour County, PA was 17.86000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Montour County, PA reached a record high of 18.49100 in January of 1995 and a record low of 16.50800 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Montour County, PA - last updated from the United States Federal Reserve on May of 2024.