Sand Lake is an unincorporated community and census-designated place (CDP) in Iosco County in the U.S. state of Michigan. The CDP had a population of 1,418 at the 2020 census. The CDP occupies portions of Grant Township, Plainfield Township, and Wilber Township.
According to the United States Census Bureau, the CDP has a total area of , of which, of it is land and of it is water. The CDP encompasses multiple lakes, including Bass Lake, Chappell Lake, Floyd Lake, Indian Lake, Island Lake, Little Island Lake, Round Lake, and Sand Lake.