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Meet Our Leadership Team

Joe  Sellenheim

Joe Sellenheim

Founding Principal

Kimberly Sadowski

Kimberly Sadowski

Dean of Lower Elementary

Photos of students, teachers, and principal

One School Changes Everything

Meet Principal Joe Sellenheim and learn more about his vision for Mill Creek Academy. Find out how we personalize teaching and measure success. Hear from parents and students and tour a school.

Learn More About Mill Creek

Meet Our School Board

Our School Board draws from the best local civic and community leaders. They volunteer their time and energy to ensure students at Mill Creek Academy receive the best education possible. For a schedule of Board meetings, minutes, and more information, visit the Board Documents page or contact us at 262-422-6020.

Kyle Koenen


Brittany Brzenk


Dan Cahalane


Alan Petelinsek


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What NHA Parents Are Saying

"We have been so happy with the teachers and staff at Mill Creek Academy. Our kids have come home several times throughout the year with stories of how staff members have helped or comforted them. It means a lot knowing that they are being taken care of."

- Mill Creek Academy Parent


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Our Authorizer

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We are authorized by the University of Wisconsin System Office of Educational Opportunity. They sponsor and monitor us to ensure we achieve academic results and uphold the promises made in our charter.

Learn About Our Authorizer