The Southwest Michigan Planning Commission (SWMPC) is one of 14 Regional Planning and Development Regions created in 1968 by Governor George Romney. Governor Romney took this step in response to a growing number of federal programs (housing, water quality, economic development, and transportation) that recognized the area-wide nature of many problems. The regional boundaries were established as a consistent geographic area upon which not only planning activities, but also the delivery of services could be based. Berrien, Cass, and Van Buren Counties were established as "Planning and Development Region IV."
The Southwest Michigan Planning Commission was organized officially in 1973 by resolutions of the Boards of Commissioners of Berrien, Cass, and Van Buren Counties, but was not formally staffed until 1974. The organization was known as the Southwestern Michigan Regional Planning Commission. Prior to that time, Berrien and Cass Counties served as members of the Michiana Area Council of Governments, while Van Buren County had no regional affiliation.
The original board was made up of county commissioners and mayors. Over the years, additional representation has been added from townships and the general public, with the intent of having a representation that reflects a variety of special interests, our ethnic diversity, and that meets the District designation requirements of the U.S. Economic Development Administration.