I think the unopposed/opposed distinction is important with some qualifiers. Some unopposed programs suck, while other "opposed" programs get you some great training and experience. For all intensive purposes I will assume that your interest in unopposed family medicine residencies has to do with wanting to do full-spectrum FM. When I applied, I delineated programs more on the quality of their full-spectrum training (i.e. good exposure to pediatrics, OB, and inpatient medicine, and availability of procedures than whether or not they were opposed. Remember that smaller hospitals with an unopposed residency may have low volume OB (even if you're the only residents on OB), low-volume peds (owing to no pediatric floors/specialists/ER, maybe low acuity ED (no trauma, etc.), whereas a larger hospital may have several residencies but they essentially don't mix. I think if you found programs that were
functionally unopposed that's a good look also - programs with high-volume unopposed OB or Peds but not necessarily fully unopposed. There are several in your region that I specifically know of that by all accounts are pretty good (some are functionally unopposed and some fully):
1) IU Ball Memorial in Muncie
2) Union Hospital in Terre Haute, IN
4) Memorial in South Bend, IN
3) University of Missouri Kansas City
In the same region but not in your named states:
1) University of Wisconsin Madison and Baraboo (their rural training track) - Madison is obviously not unopposed but they have some great training as I understand.
A little further out west but still Midwest:
1) Ascension Via Christi in Wichita, KS (OB fellowship equivalent also)
I'm sure there are more than a few with great training in the IL/IA/IN/MO area it might just take some work to find them. IF you are interested in other programs with strong training there is this list:
advancedfamilymedicine which isn't comprehensive - there are definitely others, but a good start on OB heavy FM programs (which tend to be unopposed and have good procedures). Hope that's helpful.