Casa Grande High
Public · Grades 9–12 · 1,653 students
Sonoma Mountain High (Necessary Small School)
299 Casa Grande Rd., Petaluma, CA 94954
Grades
9–12
High
Students
21
Enrolled 2024–25
Students per teacher
10.7 : 1
Full-time teachers
District
Petaluma Joint Union High
Sonoma County
Not graded
Alternative schools serve students whose needs a regular school could not meet, and states hold them to separate accountability rules, so we don't rank them against regular schools. How we grade
About Sonoma Mountain High (Necessary Small School)
Sonoma Mountain High (Necessary Small School) is an alternative 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, 21 students were enrolled, with about 10.7 students for every full-time teacher. That ratio is smaller than the typical California high school (18.5 students per teacher).
Grades & enrollment
Students per grade, 2024–25Grades 9–12
Location & nearby schools
School details
- Type
- Alternative School · What this means
- Level
- High
- Grades offered
- 9–12
- Enrollment (2024–25)
- 21 students
- Students per teacher
- 10.7 to 1
- Charter school
- No
- Magnet school
- No
- Locale
- City — Small
- School district
- Petaluma Joint Union High
- County
- Sonoma County
- NCES school ID
- 063025001788
Schools near Sonoma Mountain High (Necessary Small School)
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.