On the state level, Norwell is represented in the Massachusetts House of Representatives as a part of the Fifth Plymouth district by Rep. David DeCoste, which includes the neighboring towns of Hanover and Rockland. The town is represented in the Massachusetts Senate by Sen. Patrick O'Connor as a part of the Plymouth and Norfolk district, which includes the towns of Cohasset, Duxbury, Hingham, Hull, Marshfield, Scituate and Weymouth. The town is home to the First Barracks of Troop D of the Massachusetts State Police.