New Jersey Transit Bus Operations, under the NJ Transit Mercer, Inc. subsidiary, as successor to Mercer Metro, operates the following routes within Mercer County, New Jersey.
Routes are organized by service in Trenton. Routes labeled "Capital Connection" travel on State Street between Trenton Transit Center and the New Jersey State House. Routes labeled "Trenton Transit Center" serve the transit center and part of State Street, but do not serve the full Capital Connection. Routes labeled "Downtown Only" run only on Warren Street and Broad Street without serving either State Street or Trenton Transit Center.
All routes are exact fare lines and are operated out of the Hamilton Township garage.