There are two amazing facts I've learned today. First, 2 of America's top 10 richest towns are in Illinois. Second, one of those towns is also Ferris Buehler's hometown. Buehler!
If you want to find the zip code in Illinois that will cost more than any other, you need to find the movie 'Home Alone' on a streaming service because the house in that movie resides there.
You may have seen it pointed out that Kevin McCallister's parents in the movie Home Alone (set here in Illinois) would have been looking at serious trouble for leaving an 8 year old to knock around that fabulous house all by himself.
As someone old enough to remember seeing the movie Home Alone in the theater, I recall as we exited the theater overhearing a woman say to her husband "If you and I did something like that, and left a kid behind at home, we'd be going to jail!"
If you're an Illinois homeowner, I wouldn't be a bit surprised if you told me that you immediately thought "So does every ****ing person who owns a house in this state!"