http://www.ohiodnr.com/wildlife/dow/...here_deer.aspx
the website has a map with the numbers of deer taken last year by county.

The top ten counties for bucks registered in the Buckeye Big Buck club (140 or higher net score) since 1958 are Muskingum, Licking, Hocking, Guernsey, Athens, Coshocton, Washington, Ross, Fairfield and Jefferson.

Dont know how many are taken with a bow but it should give you a decent idea of where most big bucks in ohio are taken.