The county seat of Wayne County, Michigan is Detroit.
Grand Traverse County
The population of Wayne County, MI on December 21st 2011 is approximately 1,788,073. (Extrapolated from a population of 2,061,162 on May 24th 2008 and a population of 1,820,584 on July 1st 2011.)
Montrose is located in Genesee County.
Milwaukee