Mattole Triple Junction High

Mattole Triple Junction High is a micro-enrollment four-year high school in Petrolia, California, part of Mattole Unified. The school caters to 2 students in grades 9 through 12. By comparison, California's public schools average about 838 students each, so Mattole Triple Junction High sits 100% leaner than that benchmark.

Mattole Unified runs 3 schools in total, collectively educating 42 students. Mattole Triple Junction High is one of those campuses.

On demographics, Mattole Triple Junction High logs that the largest single group is White at 50%, but no single group is in the majority. Beyond that, the school records 50% Hispanic. By comparison, Humboldt County as a whole is about 72% White, so the school skews considerably less White than its surroundings.

On the resource side, On paper, Mattole Triple Junction High has 2 full-time-equivalent teachers, translating to a class-load average of around 1.0:1. Statewide, the average ratio sits near 18.2:1, putting Mattole Triple Junction High tighter than the state norm the norm.

In the surrounding community, Humboldt County reports that median household income runs about $61,160, 33% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 11%. In all, Humboldt County runs 92 public schools (combined enrollment of about 17,319 students), of which Mattole Triple Junction High is one.

Nearest neighbor: Mattole Elementary, around 0.0 miles off.

The campus sits in an outlying setting.

Over the past 7-year window. Looking back 7 years, enrollment at Mattole Triple Junction High has contracted 86%, going from 14 students in 2018 to 2 in 2025. Hispanic enrollment moved from 7% to 50% across the same window. Class-load math has narrowed: from 4.7:1 in 2018 to 1.0:1 in 2025.

Inside the community feed, recent activity here tends to focus on sports schedules, lunch menu changes, and school spirit week. Anyone with firsthand experience at this school can post or comment.