The district serves most of Port Arthur and a portion of Groves.
The district is headed by the PAISD School Board, which is ultimately responsible for the well-being of the district. It hires a superintendent of schools who is chiefly responsible for overseeing the day-to-day affairs of the district. This superintendent accomplishes this with the aid of other individuals and groups that the administration comprises. The current superintendent is Dr. Mark Porterie.
Prior to 1965 schools were segregated by race: White students attended Thomas Jefferson High School. Black students attended two elementary schools, Carver Elementary School and Lamar Elementary School, as well as Franklin Junior High School and Lincoln High School.
The Port Arthur Independent School District adopted a uniform dress code that was enforced district-wide during the 2007–2008 school year.
This section needs expansion. You can help by adding to it. (February 2019)
In 2001 the racial breakdown of the student body was: 58% black, 21% Hispanic, 13% white, and 8% Asian.
- Memorial High School (10th-12th) (Port Arthur)
- P.A. Memorial 9th Grade Academy (9th) (Port Acres)
- Woodrow Wilson Early College High School (9th-12th) (Downtown Port Arthur)
- Career and Technology Center
- Stilwell Technical Center (Port Arthur)
- Grades 6–8
- Thomas Jefferson Middle School
- Abraham Lincoln Middle School
- Grades PK-5
- DeQueen Elementary School  (Port Arthur)
- Dick Dowling Elementary School (Port Acres)
- Sam Houston Elementary School (Port Arthur)
- Robert E. Lee Elementary School (Port Arthur)
- William B. Travis Elementary School (Port Arthur)
- Tyrrell Elementary School (Griffing Park)
- Booker T. Washington Technology School (West Port Arthur)
- Staff Sgt. Lucian Adams Elementary (Port Arthur)
- Wheatley School of Early Childhood (Port Arthur)
- Port Arthur Alternative Campus
Former high schools
- Stephen F. Austin High School (consolidated into Memorial High)
- Abraham Lincoln High School (consolidated into Memorial High)
- Thomas Jefferson High School (consolidated into Memorial High)
- Bishop Byrne High School (closed in 1983)
Former middle schools
- Woodrow Wilson Middle School (Moved to ALMS)
- Thomas A. Edison Middle School (Moved to TJMS)
- Stephen F. Austin Middle School (Became MHS-9)
Former elementary schools
- Franklin Elementary School (built in 1917. demolished in February 2012)
- Pease Elementary School (demolished)
- Lamar Elementary School (later used an alternative school before being demolished)
- "2009 Accountability Rating System". Texas Education Agency. Archived from the original on 2015-10-25.
- Mitchell, Carol T. Taylor. "The Role of Race and Culture in the Science Classroom" (Chapter 14). In: Conyers, James L. (editor). Black Cultures and Race Relations. Rowman & Littlefield, 2002. ISBN 0830415742, 9780830415748. Start: p. 223. CITED: p. 223-224.
- "Buster Brown vs. Board of Education[permanent dead link]," Mid County Chronicle
- Stewart, Richard (2001-07-15). "Port Arthur debates consolidating high schools". Houston Chronicle. Retrieved 2019-02-16.
- DeQueen Elementary School Archived 2008-04-11 at the Wayback Machine
- Schools as of October 8, 2000, Port Arthur Independent School District
- Cite error: The named reference
https://texashistory.unt.edu/ark:/67531/metapth139795/?q=Bishop byrnewas invoked but never defined (see the help page).