Organizations listed alphabetically: I
| Organization | City | County | Category |
|---|---|---|---|
| Indian King Tavern Museum | Haddonfield | Camden | Museum |
| InfoAge Science History Museum and National Landmark | Wall | Monmouth | Museum |
| Indian Mills Historical Society | Shamong Twp | Burlington | Historical Society |
| Irvington Historical Society | Irvington | Essex | Historical Society |
| Irvington Public Library | Irvington | Essex | Library |