Port Austin is a city located in Michigan. With a 2020 population of 615, it is the 411th largest city in Michigan and the 12433rd largest city in the United States. Port Austin is currently declining at a rate of -0.81% annually and its population has decreased by -7.38% since the most recent census, which recorded a population of 664 in 2010. Port Austin reached it's highest population of 663 in 2010. Spanning over 1 miles, Port Austin has a population density of 623 people per square mile.
The average household income in Port Austin is $61,106 with a poverty rate of 12.30%. The median rental costs in recent years comes to $538 per month, and the median house value is $118,100. The median age in Port Austin is 56 years, 55.8 years for males, and 56.3 years for females. For every 100 females there are 95.8 males.