Percent of Population Below the Poverty Level (5-year estimate) in Clinton County, IA was 12.40% in January of 2022, according to the United States Federal Reserve. Historically, Percent of Population Below the Poverty Level (5-year estimate) in Clinton County, IA reached a record high of 14.20 in January of 2014 and a record low of 12.30 in January of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for Percent of Population Below the Poverty Level (5-year estimate) in Clinton County, IA - last updated from the United States Federal Reserve on May of 2024.