The Marathon County Metropolitan Planning Commission has been designated by the governor of Wisconsin as the Metropolitan Planning Organization (MPO) to perform transportation planning activities for the Wausau area in accordance with Federal regulations.


The Wausau Metropolitan Planning Area includes the Cities of Mosinee, Schofield, and Wausau, the Villages of Kronenwetter, Rothschild, and Weston, and the Towns of Bergen, Maine, Mosinee, Rib Mountain, Stettin, Texas, Wausau, and Weston.


The main objectives of the Marathon County Metropolitan Planning Commission are to develop and maintain a long-range transportation plan, and a short range Transportation Improvement Program of state and federally funded and other regionally significant projects.


In May 2006, the Marathon County Metropolitan Planning Commission officially adopted the 2035 Wausau Area Long range Transportation Plan. This met the requirements of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU), the current federal transportation bill.


The Marathon County Conservation, Planning and Zoning Department provides the staff support for the Marathon County Metropolitan Planning Commission and annually prepares the Unified Planning Work Program (UPWP) to identify the types of projects and plans to be undertaken, and the budgets for the work.


There are two committees that provide technical advice to the Marathon County Metropolitan Planning Commission and assist with specialized planning. They are the Technical Advisory Committee (MPOTAC), and the Bicycle and Pedestrian Sub-Committee