Unemployment Rate in Johnson County, MO was 4.00% in March of 2024, according to the United States Federal Reserve. Historically, Unemployment Rate in Johnson County, MO reached a record high of 10.80 in July of 2010 and a record low of 1.60 in October of 1998. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Johnson County, MO - last updated from the United States Federal Reserve on May of 2024.