De Kalb County, IL - Percent of Population Below the Poverty Level (5-year estimate) in DeKalb County, IL was 15.40% in January of 2022, according to the United States Federal Reserve. Historically, De Kalb County, IL - Percent of Population Below the Poverty Level (5-year estimate) in DeKalb County, IL reached a record high of 19.00 in January of 2013 and a record low of 15.40 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for De Kalb County, IL - Percent of Population Below the Poverty Level (5-year estimate) in DeKalb County, IL - last updated from the United States Federal Reserve on May of 2024.