| Name | Deductibility Code |
| Absolute Basic Care | -- |
| Blue Mountain Christian School | -- |
| Blue Mountain Counseling of Columbia County | -- |
| Blue Mountain Heritage Society | -- |
| Blue Mountain Resource Conservation and Development Council | -- |
| Children of Chernobyl Walla Walla | -- |
| Citizens for Community Projects | -- |
| Columbia County Community Network | -- |
| Columbia County Search and Rescue | -- |
| Community Food Bank of Dayton | -- |
| Dayton Depot Historical Society | -- |
| Dayton Development Task Force | -- |
| Dayton Eagles Homes | -- |
| Dayton Parent Teacher Student Organization | -- |
| Friends of the Dayton Memorial Library | -- |
| Main Street Dayton Charities | -- |
| Patricia K Hubbard Memorial Scholarship Fund | -- |
| The Columbia County Health Foundation | -- |
| Touchet Valley Arts Council | -- |