Bay City is a city located in Matagorda County Texas. It is also the county seat of Matagorda County. With a 2020 population of 17,471, it is the 161st largest city in Texas and the 2071st largest city in the United States . Bay City is currently declining at a rate of -0.18% annually and its population has decreased by -0.81% since the most recent census, which recorded a population of 17,614 in 2010. Bay City reached it's highest population of 18,667 in 2000. Spanning over 9 miles, Bay City has a population density of 1,886 people per square mile.
The average household income in Bay City is $66,658 with a poverty rate of 21.32%. The median rental costs in recent years comes to $861 per month, and the median house value is $99,200. The median age in Bay City is 34 years, 33.8 years for males, and 34.2 years for females.