| Name | Deductibility Code |
| A Hand Up | -- |
| Colusa Assembly of God | -- |
| Colusa Christian Outreach Center | -- |
| Colusa County Community Advocates for Parents and Children | -- |
| Colusa County Dreams & Wishes | 4 |
| Colusa County Food Basket Association | -- |
| Colusa County Scholarship Foundation Inc. | -- |
| Colusa County Sheriffs Departmrnt Search and Rescue Team | -- |
| Colusa County Volunteer Citizen Service Unit | -- |
| Colusa Hospital Foundation | -- |
| Colusa Regional Medical Center | -- |
| Friends of the Colusa County Free Library | -- |
| Impact Life in Colusa County | -- |
| Leslie J Nickels Testamentary Trust | -- |
| The Nonprofit Development Office | -- |