Inland North, which is correct.
Incidentally, us folks from uppy nort in Green Bay call it "Pop" and we drank from a public "bubbler"
My cousins from down south (they lived in a southern suburb of Chicago) called it "soda", and they drank from a "water fountain".
Fud
I live close to Milwaukee, thus I live between between Green Bay and Chicago, and my family has always called it "soda," not "pop," and "bubbler," not "drinking fountain." Half 'n half.