Oscoda 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 916 at the 2020 census. The community is located within Au Sable Township and Oscoda Township at the mouth of the Au Sable River along Lake Huron.

Iosco County is a county in the U.S. state of Michigan; its eastern border is formed by Lake Huron. As of the 2020 census, the population was 25,237. The county seat is Tawas City.