Homeownership (5-year estimate) for Mercer County, IL was 81.91304 Rate in January of 2022, according to the United States Federal Reserve. Historically, Homeownership (5-year estimate) for Mercer County, IL reached a record high of 82.05957 in January of 2009 and a record low of 79.04478 in January of 2013. Trading Economics provides the current actual value, an historical data chart and related indicators for Homeownership (5-year estimate) for Mercer County, IL - last updated from the United States Federal Reserve on June of 2024.