Unemployment Rate in Butler County, IA was 3.50% in March of 2024, according to the United States Federal Reserve. Historically, Unemployment Rate in Butler County, IA reached a record high of 10.70 in January of 1999 and a record low of 1.80 in October of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Butler County, IA - last updated from the United States Federal Reserve on May of 2024.