For the record, SA has a population of 1.5 million and 2.5 in the metro area.
Chicago is about 3 million and about 9.5 in the metro.
What is really interesting about those numbers if you divide the Chicago market just in half to account for Cubs population, they are about the same in population, and the metros become a lot closer. It becomes closer still if you push the number for the Sox, especially in the suburbs a bit lower.