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The 2010 Michigan Senate elections were held on November 2 of that year, with partisan primaries to determine each party's nominees on August 3. The election was the last contested under constituency boundaries drawn as a result of the 2000 U.S. Census, and members served in the 96th and 97th Legislatures.
Term-limited Senators
State Senators are only allowed to serve two four-year terms, a maximum of eight years. The following Senators were not eligible to run for a new term in 2010:
12th District (Oakland County (Oxford Township, Addison Township, Independence Township, Clarkston, Orion Township, Oakland Township, Lake Angelus, Rochester, Rochester Hills, Auburn Hills, Pontiac, Sylvan Lake, Keego Harbor))
14th District (Oakland (Farmington Hills, Farmington, Southfield Township, Lathrup Village, Southfield, Oak Park, Oak Park, Huntington Woods, Pleasant Ridge, Hazel Park, Ferndale, Royal Oak Township))
15th District (Oakland (Holly Township, Rose Township, Highland Township, White Lake Township, Milford Township, Commerce Township, Walled Lake, West Bloomfield Township, Orchard Lake, Wixom, Lyon Township, South Lyon, Novi, Novi Township, Northville-excluding portion outside county))
17th District (Jackson (Grass Lake Township, Leoni Township, Norvell Township, Summit Township), Monroe, Washtenaw (Bridgewater Township, Lodi Township, Manchester Township, most of Pittsfield Township, most of Milan, Saline, Saline Township, York Township))
18th District (Washtenaw (Ann Arbor, Ann Arbor Township, Augusta Township, Dexter Township, Freedom Township, Lima Township, Lyndon Township, Northfield Township, small part of Pittsfield Township, Salem Township, Scio Township, Sharon Township, Superior Township, Sylvan Township, Webster Township, Ypsilanti, Ypsilanti Township))
23rd District (Ingham (Alaiedon Township, Aurelius Township, Delhi Charter Township, East Lansing—excluding portion outside county, Lansing—excluding portion outside county, Leroy Township, Locke Township, Meridian Township, Onondaga Township, Wheatfield Township, White Oak Township, Williamston, Williamston Township))
26th District (Genesee (Atlas Township, Burton, Clio, Davison, Davison Township, Forest Township, Grand Blanc, Grand Blanc Township, Mount Morris, Mount Morris Township, Richfield Township, Thetford Township, Vienna Township), Oakland (Brandon Township, Groveland Township, Springfield Township, Waterford Township))
27th District (Genesee (Argentine Township, Clayton Township, Fenton, Fenton Township, Flint, Flint Township, Flushing, Flushing Township, Gaines Township, Genesee Township, Linden, Montrose Township, Mandy Township, Swartz Creek))
28th District (Kent (Ada Township, Algoma Township, Alpine Township, Bowne Township, Byron Township, Caledonia Township, Cannon Township, Cedar Springs, Courtland Township, East Grand Rapids, Gaines Township, Grand Rapids Township, Nelson Township, Oakfield Township, Plainfield Township, Rockford, Solon Township, Spencer Township, Tyrone Township, Walker, Wyoming))
State Senator John Gleason resigned his seat to accept election as the Genesee County Clerk. This triggered a by-election, which was held May 7, 2013. Jim Ananich won the special election with 75.27% of the vote.