Unemployment Rate in Harper County, OK was 3.30% in February of 2024, according to the United States Federal Reserve. Historically, Unemployment Rate in Harper County, OK reached a record high of 5.20 in June of 2020 and a record low of 1.50 in December of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Harper County, OK - last updated from the United States Federal Reserve on May of 2024.