Unemployment Rate in Plymouth County, MA was 4.80% in December of 2025, according to the United States Federal Reserve. Historically, Unemployment Rate in Plymouth County, MA reached a record high of 19.50 in April of 2020 and a record low of 2.10 in October of 2000. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Plymouth County, MA - last updated from the United States Federal Reserve on April of 2026.