Unemployment Rate in Delaware County, OK was 4.10% in December of 2025, according to the United States Federal Reserve. Historically, Unemployment Rate in Delaware County, OK reached a record high of 11.30 in April of 2020 and a record low of 2.60 in December of 2021. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Delaware County, OK - last updated from the United States Federal Reserve on April of 2026.