| Name | Deductibility Code |
| Art & Nature Center | -- |
| Eaa Chapter 982 Washington Island | -- |
| Friends of Washington Island Inc. | -- |
| Island Players Inc. | -- |
| Lakeadventuresunitingnatu re and Children With Hospitality Inc. | -- |
| Washington Community Foundation Inc. | -- |
| Washington Island Art Association Inc. | -- |
| Washington Island Farm Museum Inc. | -- |
| Washington Island Sportsman and Conservation Club Inc. | -- |
| Wilson and Carol Trueblood Performing Arts Center Inc. | -- |