| Name | Deductibility Code |
| 102nd Infantry Regiment Museum Inc. | -- |
| A Place Called Hope Inc. | -- |
| Arts Center at Killingworth Inc. | -- |
| Better Days Alliance Inc. | -- |
| Bridle Path Conservancy Inc. | -- |
| Church of Faith and Life Inc. | -- |
| Evergreen Cemetery | 6 |
| Killingworth Ambulance Association Inc. | -- |
| Killingworth Elementary School Parent-Teacher Oragnization | -- |
| Killingworth Foundation Inc. | -- |
| Killingworth Historical Society | -- |
| Killingworth Land Conservation Trust Inc. | -- |
| Killingworth Library Association Inc. | -- |
| Killingworth Lions Charities Inc. | -- |
| Killingworth Nursery School Association | -- |
| Killingworth Scholarship Assoc | -- |
| Killingworth Volunteer Fire Co Inc. | -- |
| Killingworth Womens Organization- gfwc Inc. | -- |
| Labs4rescue Inc. | -- |
| Living Rock Church of Killingworth Inc. | -- |
| Pathfinders Inc. | -- |