Dario Cassina High

Located at 251 South Barretta St., in Sonora, California, Dario Cassina High is a minimally staffed 9-12 campus that works with 44 students (grades 10 through 12), part of Sonora Union High. Enrollment runs roughly 95% leaner than the state mean of about 838.

Dario Cassina High is one of 3 schools operated by Sonora Union High, a district that enrolls 989 students overall.

On the student-mix side, Dario Cassina High records that 68% of the student body identifies as White. The remainder comes out to 20% Hispanic, 9% multiracial. The wider county runs roughly 81% White, putting the school's mix noticeably less White than the area baseline.

In terms of school funding signals, The school employs 3 full-time-equivalent teachers, for a student-teacher ratio near 14.1:1. That figure is tighter than the state norm's 18.2:1 average. An estimated 75% of students are eligible for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. Set against Tuolumne County (around 50%), the school's rate is north of typical.

In the surrounding community, ACS estimates for Tuolumne County put median household income runs about $77,404, roughly 25% of adults have completed at least a four-year degree, and roughly 8% of residents live below the federal poverty line. Dario Cassina High is one of 30 public schools in Tuolumne County (combined enrollment of about 5,724 students).

The closest other public school is Theodore Bird High, roughly 0.0 miles away. 8 of the 8 nearest public schools sit inside a five-mile radius.

Dario Cassina High operates from a small-town location.

Looking at the recent track record. Looking back 7 years, enrollment at Dario Cassina High has held roughly steady, going from 44 students in 2018 to 44 in 2025. The White share of enrollment grew from 59% to 68% over that span. Class-load math has narrowed: from 15.7:1 in 2018 to 14.1:1 in 2025.

In the discussion threads here, posts here usually surface around fundraisers, lost-and-found posts, and report-card season. Contributors range from current parents to recent graduates and teachers.