Port Arthur is a city located in Jefferson County Texas. With a 2020 population of 53,062, it is the 67th largest city in Texas and the 749th largest city in the United States . Port Arthur is currently declining at a rate of -1.13% annually and its population has decreased by -1.40% since the most recent census, which recorded a population of 53,818 in 2010. Port Arthur reached it's highest population of 66,766 in 1960. Spanning over 144 miles, Port Arthur has a population density of 690 people per square mile.
The average household income in Port Arthur is $51,115 with a poverty rate of 27.25%. The median rental costs in recent years comes to $823 per month, and the median house value is $65,800. The median age in Port Arthur is 34.5 years, 34.2 years for males, and 35 years for females.