Would it be possible to generate maps here that include the same? I realize I can generate a map that displays Indiana, Kentucky, Ohio, Michigan, and Illinois by adding additional region codes after the rg=, but then I would just have a map of those five states surrounded by even more empty ones.
You can always zoom in enough to get a map focused on the jurisdiction you care about, and some of the adjacent jurisdictions. I've been doing this to crank out printed maps for my travel binder, using an image editor to snip out as much of the adjacent jurisdictions as I want, and also best fit the resulting map on an 8.5 x 11 sheet of paper.
I've also done that to split geographically "awkward" states like NY, with separate printouts for upstate and Long Island, and HI, with separate maps for the four counties with state highways that omit all the water between them, to show more detail than possible for statewide maps.