Not limited to OHIO and not limited to undergrads. I've known a couple of grad students who have left MUCH larger cities due to home sickness.
mf, you are so right! But here is the craziest thing about "home-sickness": If you persevere, staying the course at the unfamiliar place that "just isn't home," there will come to be a time when that place far, far from home will be a place you long for as much as the room you grew up in.
I know; I've been in all those places. Athens was many miles and a state away from my boyhood friends and every thing that was familiar to me when my parents dumped me onto the "West Green" as a freshman.
But that was almost 50 years ago. Today -- because I "stayed the course" way back then -- I have one more place in my memory for which I have an always-ache, a home-sickness as it were. Isn't that just a bitter-sweet irony: by fighting through that first wave of home-sickness, you get to enjoy more of it down life's road!