Homeownership (5-year estimate) for Grundy County, IL was 80.59144 Rate in January of 2022, according to the United States Federal Reserve. Historically, Homeownership (5-year estimate) for Grundy County, IL reached a record high of 80.59144 in January of 2022 and a record low of 73.65841 in January of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for Homeownership (5-year estimate) for Grundy County, IL - last updated from the United States Federal Reserve on May of 2024.