| Name | Deductibility Code |
| Buchanan Arts and Crafts Inc. | -- |
| Buchanan Dam Church of Church Buchanan Dam Texas | -- |
| Buchanan Emergency Medical Services | -- |
| Buchanan Volunteer Fire Dept Inc. | 6 |
| Friends of the Lakeshore Library Inc. | -- |
| Highland Lakes Art Council | -- |
| Lake Buchanan Conservation Corporation | -- |
| Texas Association for Pupil Transportation | -- |