Founded in September 1876, it is the oldest high school in the state of Montana.

[2] A new building was completed in August 1935 and it was almost destroyed a few months later in the 1935 Helena earthquake.

Four foreign languages are taught at Helena High: French, German, Latin, and Spanish.

Students are encouraged to take honors and Advanced Placement (AP) in English, math, science, and history.

There are many extra-curricular clubs and activities for students to get involved at Helena High School.