| Name | Deductibility Code |
| Above and Beyond Healthcare Foundation Inc. | -- |
| Advancement Services of Jones Co | -- |
| Camp Courageous of Iowa | -- |
| Camp Courageous of Iowa Foundation | -- |
| Fair and Exposition Society of Jones County Inc. | -- |
| Friends of the Monticello Public Library Inc. | -- |
| Greater Monticello Iowa Community Foundation | -- |
| Monticello Athletic Booster Club | -- |
| Monticello Emergency Medical Team | -- |
| Monticello Heritage Association | -- |
| Monticello Parent Teachers Organization | -- |
| Monticello School District Foundation | -- |
| Riverside Gardeners Inc. | -- |