| System Name | Type | City |
|---|---|---|
| Alliant Energy | DMR Tier 3 Standard | Various |
| Electronic Engineering Sioux City | Motorola Type II | Sioux City |
| Iowa DMR Users Group | DMR Conventional Networked | Various |
| Iowa Statewide Interoperable Communications System (ISICS) | Project 25 Phase II | Statewide |
| Mid American Energy | MPT-1327 Standard | Various |
| Tri-State Comm Climbing Hill | LTR Standard | Climbing Hill |
| Tri-State Comm Sioux City | LTR Standard | Sioux City |
