| Steven Van Steenhuyse | American Planning Association Iowa Chapter | Opposing | GA88 |
| Gary Grant | City of Cedar Rapids | Undecided | GA88 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA88 |
| Meghan Malloy | City of Cedar Rapids | Undecided | GA88 |
| Alex Hassel | City of Des Moines | Opposing | GA88 |
| Doug Struyk | City of Des Moines | Undecided | GA88 |
| Doug Struyk | City of Des Moines | Opposing | GA88 |
| Jen Schulte | City of Des Moines | Opposing | GA88 |
| Jennifer Dorman | City of Des Moines | Undecided | GA88 |
| Jennifer Dorman | City of Des Moines | Opposing | GA88 |
| Jim Carney | City of Des Moines | Undecided | GA88 |
| Jim Carney | City of Des Moines | Opposing | GA88 |
| Doug Struyk | City of Iowa City | Undecided | GA88 |
| Doug Struyk | City of Iowa City | Opposing | GA88 |
| Jennifer Dorman | City of Iowa City | Undecided | GA88 |
| Jennifer Dorman | City of Iowa City | Opposing | GA88 |
| Jim Carney | City of Iowa City | Undecided | GA88 |
| Jim Carney | City of Iowa City | Opposing | GA88 |
| Julie Smith | City of West Des Moines | Undecided | GA88 |
| Sydney Gangestad | City of West Des Moines | Undecided | GA88 |
| Tim Coonan | City of West Des Moines | Undecided | GA88 |
| Dane Schumann | Grow Clinton County | Opposing | GA88 |
| Maddie Wilcox | Grow Clinton County | Opposing | GA88 |
| Threase Harms | Grow Clinton County | Opposing | GA88 |
| Jennifer Banta | Iowa City Area Chamber of Commerce | Opposing | GA88 |
| Alan Kemp | Iowa League of Cities | Opposing | GA88 |
| Daniel Stalder | Iowa League of Cities | Opposing | GA88 |
| Robert Palmer | Iowa League of Cities | Opposing | GA88 |
| Joe Kelly | Iowa Manufactured Housing Association | Supporting | GA88 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA88 |
| Kristi Harshbarger | Iowa State Association of Counties | Opposing | GA88 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA88 |
| William Peterson | Iowa State Association of Counties | Opposing | GA88 |
| Jamie Cashman | Iowa State Association of County Supervisors | Opposing | GA88 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Opposing | GA88 |
| Lucas Beenken | Iowa State Association of County Supervisors | Opposing | GA88 |
| William Peterson | Iowa State Association of County Supervisors | Opposing | GA88 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA88 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA88 |
| Jim Carney | Iowa State Bar Association | Undecided | GA88 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA88 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA88 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA88 |
| David Adelman | Metropolitan Coalition | Opposing | GA88 |
| Frank Chiodo | Metropolitan Coalition | Opposing | GA88 |
| Matt Hinch | Metropolitan Coalition | Opposing | GA88 |
| Sara Allen | Metropolitan Coalition | Opposing | GA88 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA88 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA88 |
| Gary Grant | Urban County Coalition | Undecided | GA88 |
| Larry Murphy | Urban County Coalition | Undecided | GA88 |
| Meghan Malloy | Urban County Coalition | Undecided | GA88 |