Jack DeGroot
Jack DeGroot
County Commissioner
Sussex County
Commissioner DeGroot was elected to the Board of County Commissioners in 2023 and joined the NJTPA Board of Trustees in 2025. Before pursuing elected office, the Commissioner worked for the Office of New Hampshire Governor Christopher T. Sununu. In this role, he conducted policy research, analyzed pending legislation, and performed statistical and data analysis for state program departments.
Commissioner DeGroot earned a Bachelor of Science degree in mathematics and finance from Marywood University and then worked at a full-time teaching assistant, and later as a summer instructor, at the University of New Hampshire, where he holds a master’s degree in statistics.