| Name | Deductibility Code |
| Antique and Classic Boat Society Inc. | -- |
| Antique Boat Museum | -- |
| Clayton Area Pre-School | -- |
| Clayton Cemetery Asso | 6 |
| Clayton Figure Skating Club | -- |
| Clayton Improvement Associaton Ltd. | -- |
| Clayton Local Development Corporation | -- |
| Clayton Volunteer Fire Dept Inc. | 6 |
| Clayton Youth Commission Booster Club | -- |
| Friends of 1000 Islands Museums Inc. | -- |
| Friends of Hawn Memorial Library | -- |
| Grindstone Island Research & Heritage Center | -- |
| Handweaving Museum and Arts Center | -- |
| Hawn Memorial Library | -- |
| Hibernian Charity | -- |
| Morse G Dial Foundation | 4 |
| Northern New York Centers for Conflict Resolution Inc. | -- |
| Paynter Senior Center Inc. | -- |
| Save the River Inc. | -- |
| Third Day Worship Center Clayton Ny | -- |
| Thousand Island Foundation Inc. | 4 |
| Thousand Islands Booster Activities Club | 4 |
| Thousand Islands Emergency Rescue Service Inc. | -- |
| Thousand Islands Land Trust Inc. | -- |
| Thousand Islands Museum | -- |
| Thousand Islands Performing Artsfund Inc. | -- |
| Thousand Islands Snowmobile Club | -- |
| Thousand Islands Youth Hockey Association Inc. | -- |