Resident Population in Haskell County, OK was 11.83200 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Haskell County, OK reached a record high of 12.91600 in January of 2013 and a record low of 9.57800 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Haskell County, OK - last updated from the United States Federal Reserve on May of 2024.