Houghton Lake is an unincorporated community and census-designated place (CDP) in Roscommon County in the U.S. state of Michigan. The population was 5,294 during the 2020 census, making it the largest unincorporated community in Northern Michigan. The CDP is located within Denton, Lake, and Roscommon townships.

Roscommon County is a county located in the U.S. state of Michigan. As of the 2020 census, the population was 23,459. The county seat is Roscommon. The county was founded in 1840 and organized in 1875.