Towns
| State | City/Town | Town Title |
|---|---|---|
| Ohio | Gratiot | Gratiot, OH |
| Ohio | Gratis | Gratis, OH |
| Ohio | Graysville | Graysville, OH |
| Ohio | Graytown | Graytown, OH |
| Ohio | Green | Green, OH |
| Ohio | Green Camp | Green Camp, OH |
| Ohio | Green Springs | Green Springs, OH |
| Ohio | Greenfield | Greenfield, OH |
| Ohio | Greenford | Greenford, OH |
| Ohio | Greentown | Greentown, OH |
| Ohio | Greenville | Greenville, OH |
| Ohio | Greenwich | Greenwich, OH |
| Ohio | Grelton | Grelton, OH |
| Ohio | Grove City | Grove City, OH |
| Ohio | Groveport | Groveport, OH |
| Ohio | Grover Hill | Grover Hill, OH |
| Ohio | Guysville | Guysville, OH |
| Ohio | Gypsum | Gypsum, OH |
| Ohio | Hallsville | Hallsville, OH |
| Ohio | Hamden | Hamden, OH |
| Ohio | Hamersville | Hamersville, OH |
| Ohio | Hamilton | Hamilton, OH |
| Ohio | Hamler | Hamler, OH |
| Ohio | Hammondsville | Hammondsville, OH |
| Ohio | Hannibal | Hannibal, OH |