Michigan's 9th Senate district is one of 38 districts in the Michigan Senate. The 9th 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 Michael Webber since 2023, succeeding Democrat Paul Wojno.
Geography District 9 encompasses parts of Macomb and Oakland counties.
2011 Apportionment Plan District 9, as dictated by the 2011 Apportionment Plan, covered the inner suburbs of Detroit in southern Macomb County, including Warren, Roseville, Eastpointe, Fraser, Center Line, and part of Clinton Township.
The district was located entirely within Michigan's 9th congressional district, and overlapped with the 18th, 22nd, 25th, 28th, and 31st districts of the Michigan House of Representatives.
List of senators Senator Party Dates Residence Notes Richard Kent Democratic 1853–1854 Adrian Henry M. Boies Republican 1855–1856 Hudson Lewis Welch Republican 1857–1860 Exeter Samuel Mulholland Republican 1861–1862 Vienna William Corbin Democratic 1863–1864 Petersburg Elected on a Fusionist ticket. Nathaniel Langdon Democratic 1865–1866 Ida Andrew Howell Republican 1867–1868 Adrian Henry C. Conkling Republican 1869–1870 Tecumseh William S. Wilcox Republican 1871–1872 Adrian William R. Stoddard Republican 1873 Litchfield Died in office. John P. Cook Democratic 1874 Hillsdale John M. Osborn Republican 1875–1876 Hudson Witter J. Baxter Republican 1877–1878 Jonesville Alexander Hewitt Republican 1879–1880 Hillsdale Albert Dickerman Republican 1881–1882 Hillsdale Ezra L. Koon Republican 1883–1884 Hillsdale George A. Smith Republican 1885–1886 Somerset W. Irving Babcock Republican 1887–1890 Niles John S. Beers Democratic 1891–1892 Stevensville Frank W. Clapp Republican 1893–1896 Battle Creek Huston B. Colman Republican 1897–1898 Kalamazoo Addison M. Brown Republican 1899–1900 Schoolcraft Arthur D. Bangham Republican 1901–1904 Homer Jesse R. Cropsey Republican 1905–1908 Vicksburg Albert C. Kingman Republican 1909–1912 Battle Creek Henry E. Straight Republican 1913–1916 Coldwater George L. Bolen Democratic 1917–1918 Battle Creek James Henry Republican 1919–1925 Battle Creek Died in office. Joseph E. Watson Republican 1925–1928 Bronson Edward L. Branson Republican 1929–1932 Battle Creek Francis A. Kulp Democratic 1933–1934 Battle Creek Joseph A. Baldwin Republican 1935–1936 Albion Mark L. Crawford Democratic 1937–1938 Coldwater Joseph A. Baldwin Republican 1939–1944 Albion Warren G. Hooper Republican 1945 Albion Murdered in office. Robert J. Hamilton Republican 1945–1948 Battle Creek Creighton R. Coleman Republican 1949–1956 Marshall John P. Smeekens Republican 1957–1964 Coldwater Stanley J. Novak Democratic 1965–1974 Detroit Thomas Guastello Democratic 1975–1982 Sterling Heights David M. Serotkin Democratic 1983 Mount Clemens Recalled. Kirby Holmes Republican 1984–1986 Utica Doug Carl Republican 1987–1994 Mount Clemens R. Robert Geake Republican 1995–1998 Northville Thaddeus McCotter Republican 1999–2002 Livonia Dennis Olshove Democratic 2003–2010 Warren Steve Bieda Democratic 2011–2018 Warren Paul Wojno Democratic 2019–2022 Warren Michael Webber Republican 2023–present Rochester Hills
Recent election results 2022
2018
2014
Federal and statewide results Year Office Results 2020 President Biden 56.9 – 41.6% 2018 Senate Stabenow 60.6 – 37.0% Governor Whitmer 61.0 – 35.8% 2016 President Clinton 53.4 – 42.3% 2014 Senate Peters 63.6 – 31.4% Governor Schauer 54.6 – 42.9% 2012 President Obama 62.7 – 36.3% Senate Stabenow 69.3 – 27.2%
Historical district boundaries
Map Description Apportionment Plan Notes Wayne County (part) Detroit (part) 1964 Apportionment Plan Lapeer County (part) Almont Township Macomb County (part) Armada Township Bruce Township Chesterfield Township Clinton Township (part) Harrison Township Lenox Township Macomb Township New Baltimore (part) Ray Township Richmond Richmond Township Shelby Township Sterling Heights Utica Washington Township St. Clair County (part) Algonac Berlin Township Casco Township China Township Clay Township Columbus Township Cottrellville Township East China Township Ira Township Marine City Marysville New Baltimore (part) Port Huron Township St. Clair St. Clair Township Wales Township 1972 Apportionment Plan Macomb County (part) Armada Township Bruce Township Chesterfield Township Lenox Township Macomb Township Memphis New Baltimore Ray Township Richmond Township Shelby Township Sterling Heights Utica Richmond Washington Township 1982 Apportionment Plan Wayne County (part) Canton Township (part) Livonia Northville Northville Township Plymouth Plymouth Township Redford Township 1992 Apportionment Plan Macomb County (part) Center Line Eastpointe Fraser Lake Township St. Clair Shores Warren 2001 Apportionment Plan Macomb County (part) Center Line Clinton Township (part) Eastpointe Fraser Roseville Warren 2011 Apportionment Plan
References