His victory makes him the sixth straight Michigan governor to be re-elected at least once. Snyder was a venture capitalist and former corporate executive before winning the governorship in 2010, his first elective office.
Schauer had attacked Snyder's decisions to slash business taxes and eliminate breaks for individuals, and said schools are underfunded. He said Snyder's approval of a right-to-work law and a ban on benefits for same-sex partners of government workers showed he's no centrist Republican.
Schauer had hoped to become the first candidate to unseat an incumbent Michigan governor since 1990.
PETERS MOVING FROM HOUSE TO SENATE : Gary Peters will be Michigan's newest U.S. senator.
The Democratic congressman from Oakland County beat former Secretary of State Terri Lynn Land in the race to replace retiring Democrat Carl Levin in the U.S. Senate.
The win for Peters, who led Land in nearly all polls for months, prevented Republicans from capturing their first Senate seat in the state in two decades. Republicans originally had hoped Michigan could be part of their effort to retake control of the chamber.
The race spurred heavy out-of-state contributions _ for which each side criticized the other. Still, the GOP focused advertising on other, closer races during the final weeks.
Even though he'll take over for the veteran Levin in January, Peters will be Michigan's junior senator—teaming with Democratic Sen. Debbie Stabenow, who is in her third term.
NEW-LOOK U.S. HOUSE DELEGATION : Michigan voters sent five new faces to the House of Representatives because of open seats.
One of them is Debbie Dingell, a Dearborn Democrat who won the 12th District seat to succeed her husband, John, who is retiring as the longest-serving member of Congress.
Republican state Sen. John Moolenaar also is heading to Washington. The 53-year-old from Midland defeated Democrat Jeff Holmes for the 4th District seat being vacated by retiring U.S. Rep. Dave Camp.
A number of veteran House members also earned new two-year terms, including Republican Candice Miller and Democrat Sander Levin.
Rep. John Conyers cruised to a 26th consecutive term with a victory in the 13th District. The 85-year-old Detroit Democrat will become Congress' longest-serving member when John Dingell retires at the end of this year.
The GOP's 9-5 advantage in the delegation remained the same.
OTHER RACES: Republican incumbents Bill Schuette and Ruth Johnson won second terms as attorney general and secretary of state, respectively.
The GOP maintained control of Michigan's House, Senate and Supreme Court.
And voters, in largely symbolic referendums, rejected state laws that allow hunting of gray wolves.