Michigan's 21st Senate district


Michigan's 21st Senate district is one of 38 districts in the Michigan Senate. The 21st 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 Democrat Sarah Anthony since 2023.

Geography

District 21 encompasses all of Eaton County, as well as part of Ingham County.

2011 Apportionment Plan

District 21, as dictated by the 2011 Apportionment Plan, covered Berrien, Cass, and St. Joseph Counties in far southwest Michigan. Communities in the district included Benton Harbor, Niles, St. Joseph, Buchanan, Benton Heights, Fair Plain, Paw Paw Lake, Dowagiac, Sturgis, Three Rivers, Benton Township, Lincoln Township, Niles Township, and St. Joseph Township.
The district was located entirely within Michigan's 6th congressional district, and overlapped with the 59th, 78th, and 79th districts of the Michigan House of Representatives. It bordered the state of Indiana, as well as Lake Michigan.

Historical district boundaries

MapDescriptionApportionment PlanNotes

1964 Apportionment Plan
  • Cass County
  • *Porter Township
  • Kalamazoo County
  • *Excluding
  • **Alamo Township
  • **Charleston Township
  • St. Joseph County
  • *Constantine Township
  • *Fabius Township
  • *Florence Township
  • *Flowerfield Township
  • *Lockport Township
  • *Mendon Township
  • *Mottville Township
  • *Nottawa Township
  • *Park Township
  • *Sherman Township
  • *Sturgis Township
  • *White Pigeon Township
  • Van Buren County
  • *Almena Township
  • *Pine Grove Township
  • *Waverly Township
    		• 1972 Apportionment Plan
  • Cass County
  • Kalamazoo County
  • *Alamo Township
  • *Brady Township
  • *Charleston Township
  • *Climax Township
  • *Comstock Township
  • *Galesburg
  • *Kalamazoo Township
  • *Oshtemo Township
  • *Parchment
  • *Pavilion Township
  • *Portage
  • *Prairie Ronde Township
  • *Ross Township
  • *Schoolcraft Township
  • *Texas Township
  • *Wakeshma Township
  • St. Joseph County
    		• 1982 Apportionment Plan
  • Kalamazoo County
  • St. Joseph County
  • *Mendon Township
  • *Park Township
    		• 1992 Apportionment Plan
  • Berrien County
  • Cass County
  • Van Buren County
  • *Almena Township
  • *Arlington Township
  • *Bangor
  • *Bangor Township
  • *Bloomingdale Township
  • *Columbia Township
  • *Covert Township
  • *Decatur Township
  • *Geneva Township
  • *Gobles
  • *Hamilton Township
  • *Hartford
  • *Hartford Township
  • *Keeler Township
  • *Lawrence Township
  • *Grove Township
  • *Porter Township
  • *South Haven
  • *South Haven Township
  • *Waverly Township
    		• 2001 Apportionment Plan
  • Berrien County
  • Cass County
  • St. Joseph County
    		• 2011 Apportionment Plan