Frazee is a city in Becker County, Minnesota, United States. It is the second most populous city in Becker County. The population was 1,350 at the 2010 census. Originally named Detroit and later Third Crossing before adopting its present name of Frazee, the plat of the old town site was made on May 27, 1857. With Becker County not formally organized until 1871, it was the earliest settlement in the area. The city was officially incorporated on January 6, 1891. It was named after R.L.