| County/Equivalent | Elevation | Prominence | Name | State | Quadrangle |
| Jo Daviess | 1,235' | 95' | Charles Mound | IL | Shullsburg |
| McHenry | 1,189' | 282' | Koltz Benchmark | IL | Harvard |
| Kane | 1,065' | 170' | Plato Benchmark | IL | Pingree Grove |
| Lake | 957' | 72' | Gander Mountain | IL | Fox Lake |
| Cook | 955' | 180' | Cook County HP | IL | Streamwood |
| Will | 835' | 150' | Hickory Benchmark | IL | Frankfort |