Sonoma Mountain High (Necessary Small School)
Alternative · Grades 9–12 · 21 students
Casa Grande High
333 Casa Grande Rd., Petaluma, CA 94954
Grades
9–12
High
Students
1,653
Enrolled 2024–25
Students per teacher
21.5 : 1
Full-time teachers
District
Petaluma Joint Union High
Sonoma County
Schola Grade B · Above average
Letter grade (A–F) · compared with 1,321 California high schools · How we grade
Percentiles compare this school with other California high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).
About Casa Grande High
Casa Grande High is a public high school in Petaluma, California, serving grades 9–12. It is part of Petaluma Joint Union High. The school is located in a small city in Sonoma County.
In the 2024–25 school year, 1,653 students were enrolled, with about 21.5 students for every full-time teacher. That ratio is larger than the typical California high school (18.5 students per teacher). Its Schola Grade is B (above average), compared with 1,321 California high schools.
Grades & enrollment
Students per grade, 2024–25Grades 9–12
Location & nearby schools
School details
- Type
- Public School · What this means
- Level
- High
- Grades offered
- 9–12
- Enrollment (2024–25)
- 1,653 students
- Students per teacher
- 21.5 to 1
- AP courses offered
- 16
- Charter school
- No
- Magnet school
- No
- Locale
- City — Small
- School district
- Petaluma Joint Union High
- County
- Sonoma County
- NCES school ID
- 063025004715
Schools near Casa Grande High
All 45 schools in Petaluma →
Cypress School
Private · Grades 8–12 · 43 students
Valley Oaks High (Alternative)
Alternative · Grades 7–12 · 43 students
San Antonio High (Continuation)
Alternative · Grades 9–12 · 65 students
Carpe Diem High (Continuation)
Alternative · Grades 9–12 · 19 students
Petaluma High
Public · Grades 9–12 · 1,193 students
School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.