In the 17th and 18th century, Michigan was part of French and then British holdings, and administered by their colonial governors. After becoming part of the United States, areas of what is today Michigan were part of the Northwest Territory, Indiana Territory and Illinois Territory, and administered by territorial governors. In 1805, the Michigan Territory was created, and five men served as territorial governors, until Michigan was granted statehood in 1837. Forty-eight individuals have held the position of state governor. The first female governor, Jennifer Granholm, served from 2003 to 2011.
After Michigan gained statehood, governors held the office for a 2-year term, until the 1963 Michigan Constitution changed the term to 4 years. The number of times an individual could hold the office was unlimited until a 1992 constitutional amendment imposed a lifetime term limit of two 4-year governorships. The longest-serving governor in Michigan's history was William Milliken, who was promoted from lieutenant governor after Governor George W. Romney resigned to become Secretary of Housing and Urban Development, then was elected to three further successive terms. The only governors to serve non-consecutive terms were John S. Barry and Frank Fitzgerald.
Prior to becoming a separate territory in 1805, Michigan was administered as part of the Northwest Territory, 1789-1800; then divided between the Ohio Country and the new Indiana Territory, 1800-1803 (when the eastern half of the Lower Peninsula was transferred to Indiana upon Ohio achieving statehood). On June 30, 1805, the Territory of Michigan was created, with GeneralWilliam Hull as the first territorial governor.[8][9] Originally, the territory included only the Lower Peninsula and eastern tip of the Upper Peninsula. The rest of the Upper Peninsula remained part of Indiana Territory until creation of Illinois Territory in 1809. The entire Upper Peninsula was not attached to Michigan Territory until Illinois became a state in 1818, Indiana having become a state in 1816.
Michigan was admitted to the Union on January 26, 1837. The original 1835 Constitution of Michigan provided for the election of a governor and a lieutenant governor every 2 years.[12] The fourth and current constitution of 1963 increased this term to four years.[13] There was no term limit on governors until a constitutional amendment effective in 1993 limited governors to two terms.[14]
Should the office of governor become vacant, the lieutenant governor becomes governor, followed in order of succession by the Secretary of State and the Attorney General.[15] Prior to the current constitution, the duties of the office would devolve upon the lieutenant governor, without that person actually becoming governor.[16] The term begins at noon on January 1 of the year following the election.[17] Prior to the 1963 constitution, the governor and lieutenant governor were elected through separate votes, allowing them to be from different parties. In 1963, this was changed, so that votes are cast jointly for a governor and lieutenant governor of the same party.[13][18]
Several governors also held other high positions within the state and federal governments. Eight governors served as U.S. House of Representatives members, while seven held positions in the U.S. Senate, all representing Michigan. Others have served as ambassadors, U.S. Cabinet members, and state and federal Supreme Court justices.
* Denotes those offices for which the governor resigned the governorship.
As of September 2026, there are four living former governors of Michigan. The most recent death of a former governor was that of William Milliken (served 1969-83) on October 18, 2019, aged 97. Milliken was also the most recently serving governor of Michigan to have died. The state's living former governors are:
^ abPorter died in office; as territorial secretary, Mason acted as governor until a replacement was appointed.[10]
^ abHorner was appointed Secretary and Acting Governor to replace Stevens T. Mason. In October 1835, Michigan authorized a state constitution and elected Mason as governor of the new state, although the state was not admitted until 1837. Horner was mostly ignored by the people of Michigan and resigned to be Secretary of Wisconsin Territory in July 1836.[11]
^Lieutenant governors represented the same party as their governor unless noted.
^Woodbridge resigned to take an elected seat in the United States Senate; as lieutenant governor, Gordon acted as governor for the remainder of the term.
^Felch resigned to take an elected seat in the United States Senate; as lieutenant governor, Greenly acted as governor for the remainder of the term.
^After a new state constitution was drafted in 1850, McClelland was elected to a single one-year term in 1851. He was then re-elected to a full two-year term in 1852.[19]
^Dunbar, Willis F. & May, George S. (1995). Michigan: A History of the Wolverine State (Third Revised ed.). William B. Eerdmans Publishing Company. pp. 276–78. ISBN9780802870551.
^Dunbar, Willis F. & May, George S. (1995). Michigan: A History of the Wolverine State (Third Revised ed.). William B. Eerdmans Publishing Company. pp. 208–11. ISBN9780802870551.
^"Cass, Lewis (1782–1866)". Biographical Dictionary of the United States Congress. Clerk of the United States House of Representatives and Historian of the United States Senate. Retrieved January 1, 2013.
^"Woodbridge, William (1780–1861)". Biographical Dictionary of the United States Congress. Clerk of the United States House of Representatives and Historian of the United States Senate. Retrieved January 1, 2013.
^"McClelland, Robert (1807–1880)". Biographical Dictionary of the United States Congress. Clerk of the United States House of Representatives and Historian of the United States Senate. Retrieved January 1, 2013.
^"Alger, Russell Alexander (1836–1907)". Biographical Dictionary of the United States Congress. Clerk of the United States House of Representatives and Historian of the United States Senate. Retrieved January 1, 2013.
^"Blanchard, James Johnston (1942–)". Biographical Dictionary of the United States Congress. Clerk of the United States House of Representatives and Historian of the United States Senate. Retrieved January 1, 2013.