Not that it's a big deal, but only 61 voters.So there's one. Werner doesn't have one, then. There is approximately 1 voter for every FBS program in a state in football. I don't know how that is modified in basketball but it's probably similar. And Richey covers college sports in the market for the only major program in the state so it makes some sense. I'm a little surprised it's not a Chicago writer but maybe we have more than one in basketball in IL.
You can see each voter's ballot on this website: https://apnews.com/hub/ap-top-25-college-basketball-poll?voter=Scott Richey
Richey has IL at #24 (so does Dick Vitale).