Unemployment Rate in Harrison County, MO was 4.30% in February of 2024, according to the United States Federal Reserve. Historically, Unemployment Rate in Harrison County, MO reached a record high of 11.40 in January of 2010 and a record low of 1.10 in October of 1999. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Harrison County, MO - last updated from the United States Federal Reserve on May of 2024.