| | Joy Zone | Seal Beach, California, United States | - | | - | - |
| | J's Amusement Park | Guerneville, California, United States | - | - | - | |
| | Jubilee Park | Carolina Beach, North Carolina, United States | - | | - | |
| | Julia Davis Fun Depot | Boise, Idaho, United States | - | - | - | - |
| | Junction Park | New Brighton, Pennsylvania, United States | - | | - | |
| | Jungle Jim's Playland | Shawnee, Kansas, United States | - | | - | ≥ |
| | Katy Road Kiddieland | Houston, Texas, United States | - | | - | - |
| | Kaydeross Park | Saratoga Springs, New York, United States | - | | - | |
| | Keewahdin Park | Port Huron, Michigan, United States | - | | - | - |
| | Kelly's Hall | Philadelphia, Pennsylvania, United States | - | ≤ | - | - |
| | Keystone Park | Sayre, Pennsylvania, United States | - | ≤ | - | - |
| | Kiddie City | Douglaston, New York, United States | - | | - | |
| Kiddieland | Melrose Park, Illinois, United States | - | | - | |
| | Kiddieland | Laconia, New Hampshire, United States | - | ≤ | - | - |
| | Kiddieland | Toledo, Ohio, United States | - | ≤ | - | ≥ |
| | Kiddieland | Cherry Hill, New Jersey, United States | - | | - | - |
| | Kiddieland | Kansas City, Missouri, United States | - | ≤ | - | - |
| | Kiddieland | Terre Haute, Indiana, United States | - | | - | ≤ |
| | Kiddie Land | St. Louis, Missouri, United States | - | | - | |
| | Kiddie Land | Lansing, Michigan, United States | - | | - | |
| | Kiddieland | Overland Park, Kansas, United States | - | - | - | - |
| | KiddieLand | Detroit Lakes, Minnesota, United States | - | | - | |
| | Kiddieland Amusement Park | Louisville, Kentucky, United States | - | - | - | s |
| | Kiddieland Amusement Park | Wichita, Kansas, United States | - | ≤ | - | - |