Unemployment Rate in Yamhill County, OR was 4.90% in December of 2025, according to the United States Federal Reserve. Historically, Unemployment Rate in Yamhill County, OR reached a record high of 12.80 in March of 2009 and a record low of 2.60 in November of 2019. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Yamhill County, OR - last updated from the United States Federal Reserve on April of 2026.