| Name | Deductibility Code |
| Andy Ellis Memorial Trust | -- |
| Associated Charities of Blackwell | -- |
| Blackwell Cemetery Corporation | 6 |
| Blackwell Oklahoma Community Foundation Inc. | 4 |
| Blackwell Public School Foundation Inc. | -- |
| Blackwell Youth Crime Prevention Association | -- |
| Church of Christ | -- |
| Cordelia Lunceford Beatty Trust | 4 |
| Dave Morgan Foundation | 4 |
| First United Methodist Church of | -- |
| Hope Crisis Center | 4 |
| Lighthouse Ministries | -- |
| Loris and Pauline Keen Charitable Trust A Testamentary Trust | 4 |
| Lucy Estes Memorial Trust | 4 |
| Top of Oklahoma Historical Society 300 S Main | -- |
| Una Pearl McKee Charitable Tr | 4 |
| United Way of Blackwell Oklahoma Inc. | -- |
| Victory Fellowship | -- |
| Wyatt A and Lorene Nash Winkler Scholarship Trust | -- |