Twin Lake is an unincorporated community in Muskegon County of the U.S. state of Michigan. It is a census-designated place for statistical purposes. Local government services are provided by Dalton Township. As of the 2020 census, the population of the CDP was 2,056. The surrounding area is the home of Blue Lake Fine Arts Camp, the YMC…Twin Lake is an unincorporated community in Muskegon County of the U.S. state of Michigan. It is a census-designated place for statistical purposes. Local government services are provided by Dalton Township. As of the 2020 census, the population of the CDP was 2,056. The surrounding area is the home of Blue Lake Fine Arts Camp, the YMCA's Camp Pinewood, and the Boy Scouts' Gerber Scout Reservation and Owasippe Scout Reservation.