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Mosinee Today
By the People, for the People
Mosinee Appoints New Mayor After Resignation
City Council unanimously selects longtime Alder Tom Helbach to fill vacancy
Published on Mar. 11, 2026
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The city of Mosinee, Wisconsin has a new mayor this week after the previous mayor, Pete Nievinski, stepped down citing health concerns. The City Council unanimously appointed longtime Alder Tom Helbach to serve out the remainder of Nievinski's term until April 2027.
Why it matters
Mosinee is a small city in central Wisconsin that has seen some political turnover in recent years, with the previous mayor, Brent Jacobson, being elected to the state assembly. The appointment of Helbach, a long-serving city council member, provides stability and continuity of leadership during this transition period.
The details
Helbach, who represented Ward 4 on the Mosinee City Council for over 20 years, was not seeking re-election in the upcoming April elections. However, with Nievinski's resignation, the council unanimously voted to appoint Helbach as the new mayor to serve out the remainder of the term until 2027.
- Nievinski stepped down as mayor in March 2026 due to health concerns.
- The City Council appointed Helbach as the new mayor in March 2026.
- Helbach will serve as mayor until the next scheduled election in April 2027.
The players
Pete Nievinski
The former mayor of Mosinee who stepped down in March 2026 due to health concerns.
Tom Helbach
A longtime Alder on the Mosinee City Council who was unanimously appointed as the new mayor to serve out the remainder of Nievinski's term.
Brent Jacobson
The previous mayor of Mosinee who was elected to the Wisconsin State Assembly.
What’s next
Helbach will be sworn in as the new mayor of Mosinee and will serve in that role until the next scheduled election in April 2027.
The takeaway
The appointment of Tom Helbach as Mosinee's new mayor provides stability and continuity of leadership for the city after the resignation of the previous mayor. Helbach's long experience on the city council will help guide Mosinee through this transition period.
