| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Old Garlock | city | California | United States | 35.38 | -117.83 | 1994 | |
| Old Gauley | city | West Virginia | United States | 38.16 | -81.19 | 830 | |
| Old Georgetown (historical) | city | Mississippi | United States | 31.87 | -90.14 | 190 | |
| Old Georgetown Estates | city | Maryland | United States | 39.05 | -77.13 | 324 | |
| Old Germania Heights | city | New York | United States | 40.71 | -73.91 | 78 | |
| Old Germantown | city | Maryland | United States | 39.16 | -77.28 | 410 | |
| Old Gilchrist | city | Illinois | United States | 41.23 | -90.63 | 830 | |
| Old Gilreath | city | North Carolina | United States | 36.07 | -81.12 | 2509 | |
| Old Gilroy | city | California | United States | 37.00 | -121.53 | 164 | |
| Old Glade Spring | city | Virginia | United States | 36.77 | -81.78 | 2509 | |
| Old Glory | city | Arizona | United States | 31.43 | -111.25 | 4189 | |
| Old Glory | city | Tennessee | United States | 35.78 | -84.03 | 951 | |
| Old Glory | city | Texas | United States | 33.13 | -100.06 | 1669 | |
| Old Glory Beach | city | Maryland | United States | 39.15 | -76.55 | 3 | |
| Old Golden | city | Idaho | United States | 45.79 | -115.65 | 5029 | |
| Old Gore | city | Ohio | United States | 39.58 | -82.30 | 830 | |
| Old Goshen Center (historical) | city | Alabama | United States | 33.96 | -85.57 | 830 | |
| Old Government Mobile Home Park | city | Alabama | United States | 30.68 | -88.22 | 150 | |
| Old Grand Glaise | city | Arkansas | United States | 35.49 | -91.38 | 196 | |
| Old Greenville (historical) | city | Missouri | United States | 37.10 | -90.45 | 400 | |
| Old Greenwich | city | Connecticut | United States | 41.02 | -73.56 | 49 | |
| Old Grove | city | Florida | United States | 25.96 | -81.61 | 3 | |
| Old Grove Mobile Home Park | city | North Carolina | United States | 34.21 | -77.86 | 29 | |
| Old Gum Tree | city | Pennsylvania | United States | 40.67 | -79.52 | 1128 | |
| Old Gun | city | Virginia | United States | 37.53 | -77.59 | 298 |