Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Harper County, OK was 2335.00000 Persons in January of 2022, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Harper County, OK reached a record high of 2985.00000 in January of 2010 and a record low of 2335.00000 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Harper County, OK - last updated from the United States Federal Reserve on May of 2024.