Unemployment Rate in Marion County, KS was 3.30% in December of 2025, according to the United States Federal Reserve. Historically, Unemployment Rate in Marion County, KS reached a record high of 7.90 in April of 2020 and a record low of 1.60 in November of 2021. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Marion County, KS - last updated from the United States Federal Reserve on April of 2026.