Calla High

Calla High is a public very small high school in Manteca, California. The school teaches grades 9 through 12 and enrolls 140 students. That puts enrollment 83% below the 838-student average for high schools in California.

Manteca Unified has 30 schools and 25,347 students, and Calla High is one of those schools.

More than half of enrollment at Calla High is Hispanic: 65%. The next largest groups are 16% White, 7% Black, 6% Asian, and 4% multiracial. The school's Hispanic share is 23 points above the 43% share among San Joaquin County residents. Measured by the diversity index, the student body scores 54%.

With 11.8 full-time-equivalent teachers, the student-to-teacher ratio is about 11.9:1. High schools in California average 18.2:1, 6.3 more students per teacher than here. Roughly 74% of students come from households that qualify for free or reduced-price lunch. For comparison, public schools in San Joaquin County average 66%.

In San Joaquin County, median household income comes to about $92,179, a bachelor's degree or higher is held by about 23% of adults, and the poverty rate is about 10%. The county's public schools total 251, with about 153,026 students.

Joshua Cowell Elementary is about 0.8 miles from Calla High, the shortest distance to any other public school. Other public schools within five miles: at least 8.

Calla High falls in the Suburb: Small locale category, used for schools in a suburban area outside a principal city, within an urbanized area with a population under 100,000.

Federal enrollment counts increased from 130 (2020-21) to 140 (2024-25). Students per teacher increased from 10.8 in 2020-21 to 11.9 in 2024-25.

The allk12 page for Calla High lets the school community talk about athletics, class schedules, and weather closures. You can also rate the school on this page.