Port Sanilac is a city located in Michigan. With a 2020 population of 576, it is the 418th largest city in Michigan and the 12714th largest city in the United States. Port Sanilac is currently declining at a rate of -0.52% annually and its population has decreased by -7.54% since the most recent census, which recorded a population of 623 in 2010. Port Sanilac reached it's highest population of 619 in 2010. Spanning over 1 miles, Port Sanilac has a population density of 677 people per square mile.
The average household income in Port Sanilac is $56,000 with a poverty rate of 14.33%. The median rental costs in recent years comes to - per month, and the median house value is $124,500. The median age in Port Sanilac is 57.2 years, 53.9 years for males, and 58.8 years for females. For every 100 females there are 89.9 males.