Single-Parent Households with Children as a Percentage of Households with Children (5-year estimate) in Mercer County, IL was 24.83% 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 Mercer County, IL reached a record high of 37.12 in January of 2014 and a record low of 23.23 in January of 2019. 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 Mercer County, IL - last updated from the United States Federal Reserve on May of 2024.