| Name | Deductibility Code |
| Cooperstown Community Actiivity Authority | -- |
| Cooperstown Medical Center | -- |
| Cooperstown-Griggs County Economic Development Corporation | -- |
| Griggs County Community Youth Project | -- |
| Griggs County Council of Aging Cooperstown Senior Citzens | -- |
| Griggs County Council on the Arts | -- |
| Griggs County Historical Society | -- |