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Candidate List Set for June 2 Primary Election
Johnson County to elect county supervisors by district for the first time
Apr. 1, 2026 at 5:53pm
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The filing deadline for candidates to appear on the June 2 primary election ballot in Johnson County, Iowa has passed. Under a new state law, the county is required to elect county supervisors by district rather than the previous at-large system. The district map was approved late last year and the candidate list is now set, with several key local and statewide races on the ballot.
Why it matters
This election marks a significant change in how Johnson County residents will choose their county leadership, with the new district-based system aimed at providing more localized representation. The results could shift the political balance of power in the county and impact key issues like development, infrastructure, and social services.
The details
The district map for the county supervisor races was prepared by the Legislative Service Bureau and approved by the Board of Supervisors in late 2025. District 2, which includes the cities of Solon, Iowa City, and others, will see a contested Democratic primary between incumbent Jon Green and challengers Jessica Andino and Janet Godwin. The winner will then face Republican Phil Hemingway in the general election. Several other county and statewide races, including for U.S. Senate and Governor, also have contested primaries on the June 2 ballot.
- The candidate filing deadline was March 20, 2026.
- The district map was approved on December 23, 2025.
- In-person early voting begins on May 13, 2026.
- Election Day is June 2, 2026, with polls open from 7 a.m. to 8 p.m.
The players
Jon Green
Incumbent Democratic candidate for Johnson County Supervisor District 2.
Jessica Andino
Democratic challenger for Johnson County Supervisor District 2.
Janet Godwin
Democratic challenger for Johnson County Supervisor District 2.
Phil Hemingway
Republican candidate for Johnson County Supervisor District 2.
Senate File 75
A 2025 state law that requires Johnson County to elect county supervisors by district rather than at-large.
What they’re saying
“This new district-based system will provide more localized representation for residents across the county.”
— Jon Green, Incumbent Democratic candidate for Johnson County Supervisor District 2
What’s next
Voters in Johnson County will head to the polls on June 2 to cast their ballots in the primary election. The winners of the Democratic and Republican primaries will advance to the general election in November.
The takeaway
The June 2 primary election in Johnson County will be a pivotal moment as the county transitions to a new district-based system for electing county supervisors. The results could reshape local politics and priorities in the years ahead.


