Unemployment Rate in Miller County, AR was 4.90% in December of 2025, according to the United States Federal Reserve. Historically, Unemployment Rate in Miller County, AR reached a record high of 14.70 in April of 2020 and a record low of 3.30 in November of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Miller County, AR - last updated from the United States Federal Reserve on April of 2026.