Port Austin is a village in Huron County in the U.S. state of Michigan. The population was 664 at the 2010 census. The village is within Port Austin Township.

Huron County is a county in the U.S. state of Michigan. As of the 2020 Census, the population was 31,407. The county seat is Bad Axe. Huron County is at the northern tip of the Thumb, which is a sub region of Mid Michigan. It is a peninsula, bordered by Saginaw Bay to the west and Lake Huron to the north and east, and has over 90 miles (140 km) of shoreline, from White Rock on Lake Huron to Sebewaing on the Saginaw Bay. Huron County's most prominent industry is agriculture, as with most of the other Thumb counties. Huron County enjoys seasonal tourism from large cities such as Detroit, Flint, and Saginaw. Much of the tourism is in the Port Austin and Caseville area.