Casa Grande High

Casa Grande High is one of the big high schools in Petaluma, California, overseen by Petaluma Joint Union High, with 1,653 students on its rolls from grades 9 through 12. Enrollment runs roughly 97% larger than the state mean of about 838.

Within Petaluma Joint Union High, which oversees 11 schools and 4,900 students, Casa Grande High is one campus in the system.

For racial and ethnic makeup, Casa Grande High shows that the most-represented group is Hispanic (47%), with the rest of the student body spread across multiple groups. Beyond that, the school reports 42% White, 6% multiracial, 4% Asian. That is meaningfully more Hispanic than the county at large, where the share is closer to 30%.

On the resource side, The school lists 77 full-time-equivalent teachers, for a student-teacher ratio near 21.5:1. Statewide, the average ratio sits near 18.2:1, putting Casa Grande High higher than the state norm the norm. About 49% of enrolled students meet the income threshold for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.

On a demographically-adjusted basis, Casa Grande High tracks the demographic baseline. The model predicts 50.6% given the school's FRL share; actual proficiency is 43.6%.

In the broader community, the surrounding county (Sonoma County) logs that median household earnings sit near $104,674, about 39% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 5%. Across Sonoma County's 184 public schools (combined enrollment of about 63,389 students), Casa Grande High is one campus in the mix.

Nearest neighbor: Sonoma Mountain High (Necessary Small School), around 0.1 miles off. Counting just inside five miles, 8 other public schools cluster around Casa Grande High. On composite proficiency, Casa Grande High comes 2nd of 5 in the immediate cluster, ahead of the nearby-schools average of 31.8%.

The school occupies a downtown site.

Trend over the last 7 years. Casa Grande High's enrollment has shrank 3% since 2018, when it stood at 1,706 (now 1,653). Hispanic enrollment moved from 40% to 47% across the same window. The student-to-teacher ratio tightened from 23.0:1 in 2018 to 21.5:1 today.

On allk12, members of the Casa Grande High community share and discuss enrollment questions, classroom assignments, and PTA news. Parents, students, alumni, and staff are welcome to weigh in.