| Gillian's FunLand | Sea Isle City, New Jersey, United States | - | | - | |
| Glendale Park | Nashville, Tennessee, United States | - | | - | |
| Glen Haven Park | Rochester, New York, United States | - | | - | ≥ |
| Glen Island Park | New Rochelle, New York, United States | - | - | - | - |
| Glen Park | Williamsville, New York, United States | - | - | - | |
| Go Bananas | Norridge, Illinois, United States | - | ≤ | - | |
| Go Bonkers Now | Arlington Heights, Illinois, United States | - | | - | |
| Golden City | Brooklyn, New York, United States | - | | - | |
| Golden Gate International Exposition | San Francisco, California, United States | - | | - | |
| Gordon Gardens | Cleveland, Ohio, United States | - | | - | |
| Gordon State Park | Saint Marys, Ohio, United States | - | | - | |
| Grand View Park | Little Falls, New Jersey, United States | - | | - | ≥ |
| Granite Park | Fresno, California, United States | - | | - | - |
| Great Adventure Amusement Park | Flushing, New York, United States | - | - | - | s |
| Greater America Exposition | Omaha, Nebraska, United States | - | | - | |
| Greater Island Park | Easton, Pennsylvania, United States | - | | - | |
| Greater Ontario Beach | Rochester, New York, United States | - | ≤ | - | |
| Green Oaks Kiddy-Land | Oak Lawn, Illinois, United States | - | | - | - |
| Griffen Amusement Park | Jacksonville Beach, Florida, United States | - | - | - | - |
| Gulf Shores Amusement Park | Gulf Shores, Alabama, United States | - | - | - | |
| Gwynn Oak Park | Baltimore, Maryland, United States | - | - | - | |
| Hague Park | Jackson, Michigan, United States | - | ≤ | - | |
| Hamel's Park | Shreveport, Louisiana, United States | - | - | - | - |
| Harlem Park | Rockford, Illinois, United States | - | | - | |