There are wineries here in Minnesota if you would take the time to find them. Stillwater and the St Croix valley does have a winery or 2 there. So OHIO does not have anything up on Minnesota.Well, they make some nice wine around the islands in Ohio: why not here? They're just called "wineries" over there, though.
Goggled Minnesota Wineries and came up with 2 pages of wineries in the state, that would be near 50 wineries. They are also spread over the state so they are not concentrated in one area of the state. But the East river border region does have a nice concentration along it's area. From near Winona/Lanesboro up the Mississippi with a few near Red Wing and more along the St. Croix river valley.