Illinois is similar. In 2012 I think only 2 counties out of about 100 went for Obama and one of those is a smallish county near St. Louis. Cook County which is city of Chicago and some surrounding area went big for Obama of course. When you get outside of that area, you find more Republican/Conservative types. This gives one a feeling of no representation. Unless you spend time downtown, you don't get the feeling that you're in a dark blue state except of course for how the state and federal government function and there is not a damn thing you can do about it.
Illinois, of course, is one of the states that does not count write-in votes. You can write in, but it won't be counted.