Estimated Percent of Related Children Age 5-17 in Families in Poverty for Johnson County, IL was 15.10% in January of 2022, according to the United States Federal Reserve. Historically, Estimated Percent of Related Children Age 5-17 in Families in Poverty for Johnson County, IL reached a record high of 21.30 in January of 1997 and a record low of 14.50 in January of 2019. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimated Percent of Related Children Age 5-17 in Families in Poverty for Johnson County, IL - last updated from the United States Federal Reserve on May of 2024.