Unemployment Rate in Barton County, MO was 3.30% in December of 2025, according to the United States Federal Reserve. Historically, Unemployment Rate in Barton County, MO reached a record high of 13.50 in December of 2007 and a record low of 1.80 in October of 1999. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Barton County, MO - last updated from the United States Federal Reserve on April of 2026.