The courses were college preparatory and in addition vocational classes, such as bookkeeping and shorthand, were taught.

The old building would later become Shasta Learning Center, home to the district offices and to University Preparatory School.

Shasta High School offers the following sports: In 2014, the cheerleading squad went to Orlando, Florida to compete in the UCA's National High School Cheerleading Championship, where they placed 5th in the large varsity division non-tumbling.

That year's Varsity kicker was Ellie Oliver, possibly the only girl football player in the north state at that time.

Mr. Lou Polcari (bands and orchestra) and Mr. Gavin Spencer (choir) have been the directors of the music program since the early 2000s.

In 2014, they competed in the California Golden State Choral Competition for the first time, where they placed 5th in the large choir division.

The combined concert and symphonic bands perform at each year's graduation ceremony and during home varsity football games.

It participates in the National Science Bowl and was involved in the local TV game show Academic Challenge until its cancellation in 2005.

Shasta's Interact Club and Students joined to create a fundraiser for the Genocide situations in Darfur.