| Name | Deductibility Code |
| Centralia-Peosta Community Fire Department | -- |
| Dubuque County Ems Association | -- |
| Epworth Community Food Pantry | -- |
| Iowa Simmental Association Inc. | -- |
| Peosta Elementary Parents | -- |
| Tri-State Homeschool Network | -- |
| Vernon Township-Peosta Historical Society | -- |