Port Huron is a city located in St. Clair County Michigan. It is also the county seat of St. Clair County. With a 2020 population of 28,509, it is the 39th largest city in Michigan and the 1355th largest city in the United States . Port Huron is currently declining at a rate of -0.42% annually and its population has decreased by -5.55% since the most recent census, which recorded a population of 30,184 in 2010. Port Huron reached it's highest population of 36,084 in 1960. Spanning over 12 miles, Port Huron has a population density of 3,519 people per square mile.
The average household income in Port Huron is $52,485 with a poverty rate of 24.43%. The median rental costs in recent years comes to $780 per month, and the median house value is $86,700. The median age in Port Huron is 37 years, 33.7 years for males, and 40.2 years for females.