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NPCSD Announces Rob Sinclair as Next Principal of North Polk High School

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NPCSD Announces Rob Sinclair as Next Principal of North Polk High School

North Polk is pleased to announce that Rob Sinclair, current North Polk High School Assistant Principal, has been named Principal of North Polk High School effective July 1, 2026. Rob has been a valued member of the North Polk community since 1999, bringing decades of experience in teaching, student programs, and school leadership.

A portrait photo of Mr. Rob Sinclair.

This transition follows current NPHS Principal Seth Poldberg moving into a district-wide role as Executive Director of Operations.

Rob began his career as a teacher at Sigourney Community Schools, later joining North Polk as a high school and middle school math teacher in 1999. He then served as North Polk Activities Director, leading programs that fostered student growth, leadership, and excellence.

Since 2019, Rob has been the High School Assistant Principal, focusing on systems, professional learning for staff, and student success.

Rob holds a Master’s Degree in Administration from Drake University and a Bachelor of Arts in Secondary Education - Mathematics from Simpson College.

Selected from a strong pool of 21 applicants and four finalists, Rob’s extensive experience and dedication to students and staff make him exceptionally well-prepared to lead one of the top high schools in the state. As principal, he looks forward to building on the school’s strong tradition of excellence while continuing to support student growth, staff development, and a culture of achievement. 

"I am honored and blessed to have the opportunity to serve as Principal of North Polk High School," says Sinclair. "Our school has a tradition of excellence, and I am committed to building on that success while continuing to prioritize strong, trusting relationships, academic and personal growth, and a supportive environment for students, staff, and our families. I look forward to partnering with our community as we strive to be the very best high school in the state. Go Comets!" 

Please join us in congratulating Mr. Rob Sinclair and welcoming him to his new role.