Towns
| State | City/Town | Town Title |
|---|---|---|
| Illinois | Gorham | Gorham, IL |
| Illinois | Grafton | Grafton, IL |
| Illinois | Grand Chain | Grand Chain, IL |
| Illinois | Grand Ridge | Grand Ridge, IL |
| Illinois | Grand Tower | Grand Tower, IL |
| Illinois | Granite City | Granite City, IL |
| Illinois | Grant Park | Grant Park, IL |
| Illinois | Grantsburg | Grantsburg, IL |
| Illinois | Granville | Granville, IL |
| Illinois | Graymont | Graymont, IL |
| Illinois | Grayslake | Grayslake, IL |
| Illinois | Grayville | Grayville, IL |
| Illinois | Great Lakes | Great Lakes, IL |
| Illinois | Green Valley | Green Valley, IL |
| Illinois | Greenfield | Greenfield, IL |
| Illinois | Greenup | Greenup, IL |
| Illinois | Greenview | Greenview, IL |
| Illinois | Greenville | Greenville, IL |
| Illinois | Gridley | Gridley, IL |
| Illinois | Griggsville | Griggsville, IL |
| Illinois | Grove | Grove, IL |
| Illinois | Groveland | Groveland, IL |
| Illinois | Gurnee | Gurnee, IL |
| Illinois | Hagarstown | Hagarstown, IL |
| Illinois | Hamburg | Hamburg, IL |