Single-Parent Households with Children as a Percentage of Households with Children (5-year estimate) in Lake County, IL was 22.53% 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 Lake County, IL reached a record high of 23.17 in January of 2015 and a record low of 19.87 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 Lake County, IL - last updated from the United States Federal Reserve on May of 2024.