| Name | Deductibility Code |
| Hall Civic Association | -- |
| McAdams Foundation | 4 |
| Monrovia Alumni Association | -- |
| Monrovia Band Boosters Inc. | -- |
| Monrovia Christian Church Inc. | -- |
| Monrovia Organized Baseball Inc. | -- |
| Open Door New Testment Ministry | -- |
| Showtime Booster Club | -- |