The government of Plymouth, Michigan operates under a council-manager form of governance. The City Commission, consisting of the mayor and other elected officials, sets policies and goals. The City Manager, appointed by the Commission, handles administration and daily operations.

This system combines political leadership with professional management, enhancing efficiency, reducing costs, and promoting merit-based decision-making. It contrasts with the “strong mayor” system, where the mayor has greater executive power. The City Commission includes several boards and commissions, providing diverse community representation and oversight.