Estimated Percent of People Age 0-17 in Poverty for Johnson County, IA was 10.20% in January of 2022, according to the United States Federal Reserve. Historically, Estimated Percent of People Age 0-17 in Poverty for Johnson County, IA reached a record high of 15.90 in January of 2011 and a record low of 8.10 in January of 2001. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimated Percent of People Age 0-17 in Poverty for Johnson County, IA - last updated from the United States Federal Reserve on May of 2024.