Mount Shasta High

Set in Mount Shasta, California, Mount Shasta High is an one-room-style 9-12 campus, one of the schools within Siskiyou Union High. It enrolls 241 students across grades 9 through 12. That puts it 71% below the typical public school in California, which averages around 838 students.

Within Siskiyou Union High, which oversees 4 schools and 476 students, Mount Shasta High is one campus in the system.

On the student-mix side, Mount Shasta High reports that White students make up the majority at 67%. Beyond that, the school logs 16% multiracial, 13% Hispanic, 2% Black. That is noticeably less White than the county at large, where the share is closer to 78%.

Looking at school resources, On paper, Mount Shasta High has 17 full-time-equivalent teachers, translating to a class-load average of around 14.6:1. Statewide, the average ratio sits near 18.2:1, putting Mount Shasta High tighter than the state norm the norm. An estimated 33% of students are eligible for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. By comparison, Siskiyou County runs at roughly 65%, so the school's eligibility rate is somewhat below the surrounding baseline.

Adjusting for the school's free-and-reduced-lunch share, Mount Shasta High performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 60.0%, the actual is 47.5%, a residual of -12.5 points.

In the broader community, community-level numbers for Siskiyou County indicate median household income runs about $59,095, 23% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 11%. Mount Shasta High is one of 52 public schools in Siskiyou County (combined enrollment of about 6,059 students).

Sisson is the nearest neighboring public school, about 0.3 miles from this campus. Counting just inside five miles, 3 other public schools cluster around Mount Shasta High. Ranking that nearby cluster on reported proficiency puts Mount Shasta High at 1st of 6; the average score across the group is 30.3%.

The school occupies a town-center site.

Five-year trend. Looking back 7 years, enrollment at Mount Shasta High has declined 19%, going from 296 students in 2018 to 241 in 2025. Hispanic enrollment moved from 18% to 13% across the same window. The student-to-teacher ratio fell from 16.7:1 in 2018 to 14.6:1 today.

On this page, the feed for Mount Shasta High typically covers school events, parent volunteer needs, and clubs. The community welcomes input from current and former families.