Unemployment Rate in Grant County, OK was 2.50% in February of 2024, according to the United States Federal Reserve. Historically, Unemployment Rate in Grant County, OK reached a record high of 5.20 in January of 2010 and a record low of 1.20 in December of 1999. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Grant County, OK - last updated from the United States Federal Reserve on May of 2024.