| | Gulf Shores Amusement Park | Gulf Shores, Alabama, United States | - | - | - | |
| | Griffen Amusement Park | Jacksonville Beach, Florida, United States | - | - | - | - |
| | Green Oaks Kiddy-Land | Oak Lawn, Illinois, United States | - | | - | - |
| | Greater Ontario Beach | Rochester, New York, United States | - | ≤ | - | |
| | Greater Island Park | Easton, Pennsylvania, United States | - | | - | |
| | Greater America Exposition | Omaha, Nebraska, United States | - | | - | |
| | Great Adventure Amusement Park | Flushing, New York, United States | - | - | - | s |
| | Granite Park | Fresno, California, United States | - | | - | - |
| | Grand View Park | Little Falls, New Jersey, United States | - | | - | ≥ |
| | Gordon State Park | Saint Marys, Ohio, United States | - | | - | |
| | Gordon Gardens | Cleveland, Ohio, United States | - | | - | |
| | Golden Gate International Exposition | San Francisco, California, United States | - | | - | |
| | Golden City | Brooklyn, New York, United States | - | | - | |
| | Go Bonkers Now | Arlington Heights, Illinois, United States | - | | - | |
| Go Bananas | Norridge, Illinois, United States | - | ≤ | - | |
| | Glen Park | Williamsville, New York, United States | - | - | - | |
| | Glen Island Park | New Rochelle, New York, United States | - | - | - | - |
| | Glen Haven Park | Rochester, New York, United States | - | | - | ≥ |
| | Glendale Park | Nashville, Tennessee, United States | - | | - | |
| Gillian's FunLand | Sea Isle City, New Jersey, United States | - | | - | |
| | Ghost Town on the River | Louisville, Kentucky, United States | - | | - | |
| Geauga Lake & Wildwater Kingdom | Aurora, Ohio, United States | - | | - | |
| | Gayway | Seaside, Oregon, United States | - | - | - | - |
| | Gay Dolphin Park | Myrtle Beach, South Carolina, United States | - | - | - | |