The Polson High School facility, built in 1973, is located on the south-west side of the city overlooking Flathead Lake.

Grades 9-12 are served by a core curriculum, which includes programs in English, mathematics, science, and social studies. Advanced courses in these areas are also offered. Dual Enrollment courses are offered in Mathematics and Social Studies. A broad range of vocational and fine arts electives are available to students. These programs include instrumental and vocal music, art, computer science, business, building trades, technology education, and a new Healthcare Internship program.

Over the past several years, a commitment has been made to ensure that adequate technology is available to the students at PHS. Modern computer labs can be found in the areas of science, math, business, computer science, technology education, and alternative learning. In addition, a state of the art multi-media center is available to students in the library. All of these labs are networked and have Internet access.

The high school counseling department is staffed by two highly qualified school counselors and a records specialist. Individual, career, and post-secondary education counseling are available to all students. Scholarship information and other work related opportunities are made available by the staff in this department.

To complement the regular education programs, Polson High School also offers Title 1, Gifted Education, and Special Education services. These programs are designed to help students who have unique learning abilities. Both are well staffed with highly qualified instructors and paraprofessionals.

Polson High School is a member of the Montana High School Association and participates in the Northwestern Class A division activities. Students can choose to compete in ten different athletic areas. There is also a full range of competitive speech and drama activities, as well as those offered in the area of band and choir.

In addition, PHS offers students the opportunity to take part in cheerleading, yearbook, National Honor Society, production of an award winning newspaper, an intramural basketball program, and many other clubs and organizations designed for student growth and leadership.

The 750 seat auditorium not only serves the high school but is also used by the community for numerous theatrical and musical performances.

Educational services and opportunities are extended to the community through the adult education program. A variety of classes are offered to the public throughout the year.

Polson High School is accredited by the Montana Office of Public Instruction.