Michigan's 20th Senate district


Michigan's 20th Senate district is one of 38 districts in the Michigan Senate. The 20th district was created by the 1850 Michigan Constitution, as the 1835 constitution only permitted a maximum of eight senate districts. It has been represented by Republican Aric Nesbitt since 2023, succeeding Democrat Sean McCann.

Geography

District 20 encompasses parts of Allegan, Berrien, Kent, and Van Buren counties.

2011 Apportionment Plan

District 20, as dictated by the 2011 Apportionment Plan, was exactly coterminous with Kalamazoo County, including the city of Kalamazoo and the surrounding communities of Portage, Comstock Northwest, Eastwood, Westwood, Vicksburg, Kalamazoo Township, Oshtemo Township, Texas Township, Comstock Township, and Cooper Township.
The district was located entirely within Michigan's 6th congressional district, and overlapped with the 60th, 61st, 63rd, and 66th districts of the Michigan House of Representatives.

Historical district boundaries

MapDescriptionApportionment PlanNotes

1964 Apportionment Plan
  • Barry County
  • *Assyria Township
  • *Baltimore Township
  • *Barry Township
  • *Carlton Township
  • *Hastings Township
  • *Hope Township
  • *Irving Township
  • *Johnstown Township
  • *Orangeville Township
  • *Rutland Township
  • *Woodland Township
  • *Yankee Springs Township
  • Branch County
  • Calhoun County
  • *Excluding
  • **Lee Township
  • Hillsdale County
  • *Allen Township
  • *Litchfield Township
  • *Reading
  • *Reading Township
  • Jackson County
  • *Pulaski Township
  • Kalamazoo County
  • *Charleston Township
  • St. Joseph County
  • *Burr Oak Township
  • *Colon Township
  • *Fawn River Township
  • *Leonidas Township
  • *Sturgis
    		• 1972 Apportionment Plan
  • Calhoun County
  • Eaton County
  • Ingham County
  • *Delhi Township
    		• 1982 Apportionment Plan
  • Berrien County
  • Cass County
  • St. Joseph County
  • *Burr Oak Township
  • *Colon Township
  • *Constantine Township
  • *Fabius Township
  • *Fawn River Township
  • *Florence Township
  • *Flowerfield Township
  • *Leonidas Township
  • *Lockport Township
  • *Mottville Township
  • *Nottawa Township
  • *Sherman Township
  • *Sturgis
  • *Sturgis Township
  • *Three Rivers
  • *White Pigeon Township
    		• 1992 Apportionment Plan
  • Kalamazoo County
  • Van Buren County
  • *Antwerp Township
  • *Paw Paw Township
    		• 2001 Apportionment Plan
  • Kalamazoo County
    		• 2011 Apportionment Plan