Port Arthur is a larger medium-sized city located in the state of Texas. With a population of 55,579 people and 21 associated neighborhoods, Port Arthur is the 67th largest community in Texas.

The percentage of people in Port Arthur with college degrees is quite a bit lower than the national average for cities and towns of 21.84%: just 11.42% of people over 25 have a bachelor's degree or advanced degree.

The per capita income in Port Arthur in 2022 was $24,065, which is lower middle income relative to Texas, and low income relative to the rest of the US. This equates to an annual income of $96,260 for a family of four. However, Port Arthur contains both very wealthy and poor people as well.

Port Arthur is an extremely ethnically-diverse city. The people who call Port Arthur home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Port Arthur residents report their race to be Black or African-American, followed by White. Port Arthur also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 33.97% of the city’s residents. Important ancestries of people in Port Arthur include Irish, German, French, English, and Italian.

Foreign born people are also an important part of Port Arthur's cultural character, accounting for 20.51% of the city’s population.

The most common language spoken in Port Arthur is English. Other important languages spoken here include Spanish and Vietnamese.