Single-Parent Households with Children as a Percentage of Households with Children (5-year estimate) in Marion County, IL was 38.73% in January of 2022, according to the United States Federal Reserve. Historically, Single-Parent Households with Children as a Percentage of Households with Children (5-year estimate) in Marion County, IL reached a record high of 42.80 in January of 2018 and a record low of 37.26 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Single-Parent Households with Children as a Percentage of Households with Children (5-year estimate) in Marion County, IL - last updated from the United States Federal Reserve on May of 2024.