There is quite a bit of public land in southern IL (Shawnee National Forest) but for the rest of the state it's very much a case of "few and far between". What little public land we have gets hammered for the most part too. Look at a map and you can easily see just how little public land there is in most of the state. Illinois ranks something like 47th or 48th in the country in the amount of public land. Basically if you don't know someone who will let you hunt, own your own land, or can hunt on family land, etc. then you'll have to get your wallet out to have a place to hunt. Not saying it would be totally impossible to knock on some doors and find a place to hunt but it would be nearly so. It used to be like that but those days are long gone in this state, and a lot of others too.