Civilian Labor Force in O'Brien County, IA was 7818.00000 Persons in December of 2025, according to the United States Federal Reserve. Historically, Civilian Labor Force in O'Brien County, IA reached a record high of 8651.00000 in June of 2015 and a record low of 7127.00000 in January of 1990. Trading Economics provides the current actual value, an historical data chart and related indicators for Civilian Labor Force in O'Brien County, IA - last updated from the United States Federal Reserve on April of 2026.