Population Estimate, Total, Hispanic or Latino (5-year estimate) in Jefferson County, OK was 625.00000 Persons in January of 2022, according to the United States Federal Reserve. Historically, Population Estimate, Total, Hispanic or Latino (5-year estimate) in Jefferson County, OK reached a record high of 672.00000 in January of 2020 and a record low of 479.00000 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Hispanic or Latino (5-year estimate) in Jefferson County, OK - last updated from the United States Federal Reserve on May of 2024.