Resident Population in Lycoming County, PA was 112.72400 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Lycoming County, PA reached a record high of 122.27300 in January of 1994 and a record low of 112.72400 in January of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Lycoming County, PA - last updated from the United States Federal Reserve on May of 2024.