The Town of Lyons has a council-manager form of government, wherein six Trustees and one Mayor are elected by voters, and set policies for operating the Town government. The administrative implementation and management of policies are held responsible by the town administrator, who is appointed by the Board of Trustees.

The mayor may serve up to four two-year terms consecutively, for a total of eight years. Trustee members may serve up to three two-year terms consecutively, for a total of six years.