Unemployment Rate in Imperial County, CA was 18.60% in December of 2025, according to the United States Federal Reserve. Historically, Unemployment Rate in Imperial County, CA reached a record high of 40.50 in July of 1992 and a record low of 11.70 in March of 2002. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Imperial County, CA - last updated from the United States Federal Reserve on April of 2026.