There are a handful of state schools that are Osteopathic programs: MSU, OSU, OU, UNTHSC. (I think that's it)
There are a handful of schools with significant regional bias: LMU, PNWU, Western-Lebanon, WVSOM, UNECOM, and perhaps PCOM. (those are the ones I can think of, there may be others that I'm forgetting.)
The rest are regular private schools with no regional or state bias: the AT Still campuses, Western Pomona, the Midwesterns, the Lake Eerie's, NYCOM, the Touro's, KCUMB, DMU, and a handful of others.
You've got plenty of options regardless of where you do or do not live.