There are 129 Monuments & Memorials in Illinois, serving a population of 12,854,526 people in an area of 55,505 square miles. There is 1 Monument & Memorial per 99,647 people, and 1 Monument & Memorial per 430 square miles.
The state of Illinois is ranked 38th in Monuments & Memorials per capita, and 18th in Monuments & Memorials per square mile.