Tecumseh is a small city in Lenawee County, Michigan, United States. It is situated where M-50 crosses the River Raisin, a few miles east of M-52. Tecumseh is about 60 miles southwest of Detroit, 25 miles south of Ann Arbor and 40 miles north of Toledo, Ohio.As of the 2010 census, the city population was 8,521. The city is surrounded on three sides by Tecumseh Township, but is politically independent. Raisin Township borders the southern edge of the city. The city was rated #93 in 2009, as one of 100 of the best small towns to live in by CNNMoney.