Resident Population in Pawnee County, OK was 15.86400 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Pawnee County, OK reached a record high of 16.73800 in January of 2001 and a record low of 11.33800 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Pawnee County, OK - last updated from the United States Federal Reserve on May of 2024.