MARMichigan Association of Regions

The Tri-County Regional Planning Commission is a public planning agency established in 1956, serving Clinton, Eaton, and Ingham counties in Mid-Michigan. Tri-County fosters prosperity within the region’s diverse urban and rural communities by planning for a strong economy, reliable transportation, and sustainable infrastructure and natural resources. 

As the designated Metropolitan Planning Organization and Economic Development District for the region, we connect local organizations and governments to funding for transportation projects and economic development initiatives, provide technical assistance and data resources, and coordinate opportunities to discuss trends and challenges affecting the Greater Lansing area. At the heart of the region is Lansing, the state capital of Michigan, and East Lansing, home to Michigan State University.