D3baseball.com regional rankings as of May 3rd 2012. Illinois Division III schools are in bold.
Central Region:
1. Washington
2. Chicago
3. Illinois Wesleyan
4. Augustana
5. Wheaton
6. St. Norbert
Midwest Region:
1. St. Thomas
2. Wisconsin-La Crosse
3. Wisconsin-Stevens Point
4. Concordia Chicago
5. St. Scholastica
6. Aurora
Central Region:
1. Washington
2. Chicago
3. Illinois Wesleyan
4. Augustana
5. Wheaton
6. St. Norbert
Midwest Region:
1. St. Thomas
2. Wisconsin-La Crosse
3. Wisconsin-Stevens Point
4. Concordia Chicago
5. St. Scholastica
6. Aurora