Planning Regions
Click a region on the right to see the latest reports and videos for that area. Areas shaded in gray are water supply planning regions to be investigated in the future.
Illinois Planning Regions
- Northeastern Illinois Region
- East Central Illinois Region
- Middle Illinois Region
- Kaskaskia River Region
- Rock River Region
- Kankakee Subregion
- Spoon and LaMoine River Region
- Lower Illinois River Region
- American Bottoms Region
- Wabash and Ohio River Region
- Big Muddy River Region
