Resident Population in Lincoln County, OK was 34.56200 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Lincoln County, OK reached a record high of 34.96700 in January of 2017 and a record low of 19.48200 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Lincoln County, OK - last updated from the United States Federal Reserve on May of 2024.