| State: | Michigan |
| District: | 31 |
| Chamber: | Senate |
| Representative: | Roger Victory |
| Party: | Republican |
| Residence: | Georgetown Township |
| Percent White: | 81 |
| Percent Black: | 2 |
| Percent Hispanic: | 11 |
| Percent Asian: | 3 |
| Percent Multiracial: | 2 |
| Population: | 264,990 |
| Population Year: | 2022 |
| Notes: | [1] |
Michigan's 31st Senate district is one of 38 districts in the Michigan Senate. The 31st district was created by the 1850 Michigan Constitution, as the 1835 constitution only permitted a maximum of eight senate districts.[2] [3] It has been represented by Republican Roger Victory since 2023, succeeding fellow Republican Kevin Daley.
District 31 encompasses parts of Allegan and Ottawa counties.[4]
District 31, as dictated by the 2011 Apportionment Plan, covered all of Bay, Lapeer, and Tuscola Counties along Saginaw Bay, including the communities of Bay City, Essexville, Caro, Vassar, Lapeer, Imlay City, Almont, Bangor Township, Monitor Township, and Hampton Township.[5]
The district was exactly split between Michigan's 5th and 10th congressional districts, and overlapped with the 82nd, 84th, 96th, and 98th districts of the Michigan House of Representatives.[6]
| Senator | Party | Dates | Residence | Notes | |||
|---|---|---|---|---|---|---|---|
| Daniel B. Harrington | bgcolor= | Democratic | 1853–1854 | Port Huron | [7] [8] [9] | ||
| Omar D. Conger | bgcolor= | Republican | 1855–1856 | Port Huron | [10] [11] | ||
| Thomas W. Ferry | bgcolor= | Republican | 1857–1858 | Grand Haven | [12] | ||
| Henry Pennoyer | bgcolor= | Democratic | 1859–1860 | Grand Haven | [13] | ||
| Nelson Green | bgcolor= | Republican | 1861–1862 | White River | [14] | ||
| Charles Mears | bgcolor= | Republican | 1863–1864 | Mason County | [15] [16] | ||
| James B. Walker | bgcolor= | Republican | 1865–1866 | Benzonia | [17] [18] | ||
| John H. Standish | bgcolor= | Republican | 1867–1870 | Newaygo | [19] | ||
| Seth C. Moffatt | bgcolor= | Republican | 1871–1872 | Northport | [20] | ||
| William H. C. Mitchell | bgcolor= | Republican | 1873–1876 | East Traverse Bay | [21] | ||
| Edward Breitung | bgcolor= | Republican | 1877–1878 | Negaunee | [22] | ||
| Samuel M. Stephenson | bgcolor= | Republican | 1879–1880 | Menominee | |||
| William F. Swift | bgcolor= | Republican | 1881–1882 | Ishpeming | [23] | ||
| Henry W. Seymour | bgcolor= | Republican | 1883–1884 | Sault St. Marie | [24] | ||
| Samuel M. Stephenson | bgcolor= | Republican | 1885–1886 | Menominee | [25] | ||
| William S. Laing | bgcolor= | Republican | 1887–1888 | Iron Mountain | [26] | ||
| Clinton G. Griffey | bgcolor= | Republican | 1889–1890 | Negaunee | [27] | ||
| Joseph Flesheim | bgcolor= | Republican | 1891–1892 | Menominee | [28] | ||
| Peter Pascoe | bgcolor= | Republican | 1893–1896 | Republic | [29] | ||
| Alexander Maitland | bgcolor= | Republican | 1897–1900 | Negaunee | [30] | ||
| Gad Smith | bgcolor= | Republican | 1901–1902 | Marquette | [31] | ||
| Michael H. Moriarty | bgcolor= | Republican | 1903–1912 | Crystal Falls | [32] | ||
| Charles T. Winegar | bgcolor= | Progressive | 1913–1914 | Iron Mountain | [33] | ||
| Alton T. Roberts | bgcolor= | Republican | 1915–1918 | Marquette | [34] | ||
| Frank H. Vandenboom | bgcolor= | Republican | 1919–1922 | Marquette | [35] | ||
| Walter F. Truettner | bgcolor= | Republican | 1923–1928 | Bessemer | [36] | ||
| Charles W. Richardson | bgcolor= | Republican | 1929–1932 | Marquette | [37] | ||
| Ray Derham | bgcolor= | Republican | 1933–1934 | Iron Mountain | |||
| John C. Wickstrom | bgcolor= | Democratic | 1935–1938 | Norway | [38] | ||
| D. Stephen Benzie | bgcolor= | Democratic | 1939–1942 | Norway | [39] | ||
| Joseph P. Cloon | bgcolor= | Republican | 1943–1944 | Wakefield | |||
| Alvin C. Hampton | bgcolor= | Democratic | 1945–1946 | Negaunee | [40] | ||
| Joseph P. Cloon | bgcolor= | Republican | 1947–1948 | Wakefield | |||
| Albert J. Wilke | bgcolor= | Democratic | 1949–1950 | Iron Mountain | [41] | ||
| Joseph P. Cloon | bgcolor= | Republican | 1951–1954 | Wakefield | [42] | ||
| Philip Rahoi | bgcolor= | Democratic | 1955–1964 | Iron Mountain | [43] | ||
| Robert VanderLaan | bgcolor= | Republican | 1965–1982 | Grand Rapids | [44] | ||
| Dick Posthumus | bgcolor= | Republican | 1983–1998 | Alto | Lived in Lowell from around 1983 to 1988.[45] [46] [47] [48] | ||
| Ken Sikkema | bgcolor= | Republican | 1999–2002 | Grandville | [49] | ||
| Jim Barcia | bgcolor= | Democratic | 2003–2010 | Bay City | [50] | ||
| Mike Green | bgcolor= | Republican | 2011–2018 | Mayville | [51] [52] | ||
| Kevin Daley | bgcolor= | Republican | 2019–2022 | Lum | [53] [54] [55] | ||
| Roger Victory | bgcolor= | Republican | 2023–present | Georgetown Township | [56] | ||
| Year | Office | Results[57] |
|---|---|---|
| 2020 | President | Trump 62.4 – 35.9% |
| 2018 | Senate | James 56.0 – 41.8% |
| Governor | Schuette 53.9 – 42.7% | |
| 2016 | President | Trump 61.0 – 33.8% |
| 2014 | Senate | Peters 51.4 – 43.6% |
| Governor | Snyder 52.2 – 44.9% | |
| 2012 | President | Romney 51.4 – 47.5% |
| Senate | Stabenow 56.3 – 40.1% |
| Map | Description | Apportionment Plan | Notes |
|---|---|---|---|
| 1964 Apportionment Plan | [58] | |
| 1972 Apportionment Plan | [59] | |
| 1982 Apportionment Plan | [60] | |
| 1992 Apportionment Plan | [61] | |
| 2001 Apportionment Plan | [62] | ||
| 2011 Apportionment Plan | [63] | ||