. . "2010Z"^^ . . . "Mason County"@en . . . "1.93472e+09"^^ . "1.28204e+09"^^ . "22.3939"^^ . . "28705"^^ . "3.21677e+09"^^ . "60.0"^^ . . "Mason County is a county located in the U.S. state of Michigan. As of the 2010 census, the population was 28,705. The county seat is Ludington.Mason County comprises the Ludington, MI Micropolitan Statistical Area."@en .