| | Island Beach Park | Burlington, New Jersey, USA | - | 1900s | - |
| iPlay America | Freehold, New Jersey, USA | Operating | 11/11/2011 | 1 |
| | Iola Electric Park | Iola, Kansas, USA | - | | - |
| | Interstate Gardens | Beloit, Wisconsin, USA | - | | - |
| | Indianola Park | Columbus, Ohio, USA | - | 1905 | - |
| | Indian Nations Park | Jenks, Oklahoma, USA | - | | 1 |
| | Indian Lake Playland | Russells Point, Ohio, USA | - | 1924 | - |
| Indianapolis Zoo | Indianapolis, Indiana, USA | Operating | 4/18/1964 | 1 |
| Indiana Beach | Monticello, Indiana, USA | Operating | 1926 | 6 |
| | Incredible Pizza Company | Cordova, Tennessee, USA | Operating | 12/2007 | 1 |
| | Incredible Pizza Company | Warr Acres, Oklahoma, USA | Under Construction | 11/25/2016 | 1 |
| | Idora Park | Youngstown, Ohio, USA | - | 5/30/1899 | - |
| | Idora Park | Oakland, California, USA | - | 1906 or earlier | - |
| | Idlewood Amusement Park | Richmond, Virginia, USA | - | 1902 | - |
| Idlewild & SoakZone | Ligonier, Pennsylvania, USA | Operating | 5/1/1878 | 2 |
| Hydro Adventures | Poplar Bluff, Missouri, USA | Operating | 2003 | 2 |
| Huck Finn's Playland | Albany, New York, USA | Operating | 6/18/2015 | 1 |
| | House of Kicks | Chicago, Illinois, USA | - | 3/2002 | - |
| | Hot Springs Holiday Resort | Ogden, Utah, USA | - | | - |
| | Hoppyland | Marina Del Rey, California, USA | - | | - |
| | Hollywood Connection | West Valley City, Utah, USA | - | 1998 | - |
| | Holland Speedway | Holland, New York, USA | Operating | 1990 or earlier | 1 |
| Holiday World | Santa Claus, Indiana, USA | Operating | 8/3/1946 | 5 |
| Holiday Valley | Ellicottville, New York, USA | Operating | 1957 | 1 |