Estimated Percent of Related Children Age 5-17 in Families in Poverty for Cook County, IL was 18.80% 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 Cook County, IL reached a record high of 27.30 in January of 1993 and a record low of 16.50 in January of 2020. 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 Cook County, IL - last updated from the United States Federal Reserve on May of 2024.