| Name | Deductibility Code |
| Boyden-Hull Community School District Foundation | -- |
| Friends of the Hull Public Library Inc. | -- |
| Hope Cemetery Assn | 6 |
| Hull Bright Start Inc. | -- |
| Hull Christian School | -- |
| Hull Community Foundation | -- |
| Hull Fellowship Association | -- |
| Midwest Protestant Reformed Secondary School Society | -- |
| Protestant Reformed Church of Hull Iowa | -- |
| Sioux County Oratorio Chorus Inc. | -- |
| Society for Protestant Reformed Education of Hull Iowa | -- |