Twin Lake is an unincorporated community in Muskegon County of the U.S. state of Michigan. It is a census-designated place (CDP) for statistical purposes. Local government services are provided by Dalton Township, though the Twin Lake ZIP code serves parts of neighboring townships. As of the 2020 census, the population of the CDP was 2,056.

The Twin Lake ZIP code 49457 serves a much larger area, including much of northern and eastern Dalton Township, most of Cedar Creek Township to the east, parts of northern Egelston Township and Muskegon Township to the south, much of Blue Lake Township to the north and the southwest corner of Holton Township.

Twin Lake is northeast of Muskegon, the county seat, the same distance east-southeast of Whitehall, and southwest of Fremont. State highway M-120 passes through the hamlet, connecting Muskegon and Fremont.

According to the U.S. Census Bureau, the Twin Lake CDP has a total area of , of which are land and , or 16.2%, are water.

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2020 census

As of the 2020 census, Twin Lake had a population of 2,056. The median age was 43.5 years. 23.1% of residents were under the age of 18 and 19.4% of residents were 65 years of age or older. For every 100 females there were 94.9 males, and for every 100 females age 18 and over there were 95.3 males age 18 and over.

0.0% of residents lived in urban areas, while 100.0% lived in rural areas.

There were 789 households in Twin Lake, of which 29.9% had children under the age of 18 living in them. Of all households, 66.5% were married-couple households, 13.8% were households with a male householder and no spouse or partner present, and 14.1% were households with a female householder and no spouse or partner present. About 17.2% of all households were made up of individuals and 7.5% had someone living alone who was 65 years of age or older.

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