Unemployment Rate in Washington County, OR was 4.80% in December of 2025, according to the United States Federal Reserve. Historically, Unemployment Rate in Washington County, OR reached a record high of 10.90 in April of 2020 and a record low of 2.30 in November of 2019. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Washington County, OR - last updated from the United States Federal Reserve on April of 2026.