At a glance
Reported students
21
NCES CCD 2024–25
Teachers (FTE)
1.97
NCES CCD 2024–25
Student–teacher ratio
10.7:1
Calculated; not a class-size measure
Grades served
10–12
NCES preliminary directory 2025–26
School benchmarks
California high enrollment
11th percentile
Compared with 2,195 same-level schools reporting enrollment.
District median enrollment
115
Sonoma Mountain High (Necessary Small School): 21 reported students.
State peer staffing position
15th percentile
10.7:1 reported; state peer median 19.2:1. Ratio is not class size.
Historical enrollment and staffing · CRDC 2021–22
These older figures are kept separate from 2024–25 statistics and benchmarks. Differences between years can reflect changes in enrollment, staffing, or reporting scope.
- Students
- 22
- Teachers (FTE)
- 2
- Student–teacher ratio
- 11:1
What the reported data says about Sonoma Mountain High (Necessary Small School)
Sonoma Mountain High (Necessary Small School) is a public high school serving grades 10–12 in Petaluma. It is one of 11 current school records connected to Petaluma Joint Union High. NCES reports 21 students for 2024–25.
Among 2,195 high schools in California with comparable records, this school is smaller than the reported median of 416 students. Its enrollment is at approximately the 11th percentile for that peer group. Size describes the campus, not instructional quality.
The reported student–teacher ratio is 10.7:1, below the California median of 19.2:1 for the same school level. This ratio uses total enrollment and teacher FTE; it is not an average classroom headcount and can be affected by special programs or part-time staffing.
The largest reported race and ethnicity groups are White (76.2%) and Hispanic or Latino (19%). English learners represent 9.1% of enrollment. Students served under IDEA represent 18.2%. These figures help families understand who the school serves; they are not rating inputs.
Questions worth asking Sonoma Mountain High (Necessary Small School)
- 1How do the reported 10.7:1 student–teacher ratio and 1.97 teacher FTE translate into actual class sizes by grade?
- 2Have the reported academic programs changed since the 2021–22 CRDC collection?
- 3What counseling support is available today? The school reported 0 counselor FTE in 2021–22.
- 4What meal assistance, transportation, after-school, and family-support services are currently available?
Enrollment needs
- English learners
- 9.1%
- Students with disabilities
- 18.2%
- Free/reduced-price lunch
- 71.4%
- Lunch program
- Missing
Reported support staff
- Counselors (FTE)
- 0
- Nurses (FTE)
- 0
- Psychologists (FTE)
- 0
- Social workers (FTE)
- 0
CRDC 2021–22 full-time-equivalent counts; verify current assignments with the school.
Student demographics
Race and ethnicity share of reported enrollment
- White76.2%
- Hispanic19%
- Black0%
- Asian0%
- American Indian / Alaska Native0%
- Native Hawaiian / Pacific Islander0%
- Multiracial4.8%
Race/ethnicity: NCES CCD 2024–25. English learner and disability context: CRDC 2021–22. Lunch eligibility: NCES CCD 2024–25. Privacy rules can produce missing values.
Programs reported by the school
AP student enrollment
No students enrolled reported
Gifted and talented
Not reported as offered
Computer science
Not reported as offered
CRDC 2021–22: the AP flag records student enrollment; gifted and computer-science fields describe reported programs/classes. Confirm current courses and eligibility with the school.
Other schools in Petaluma Joint Union High
Start with campuses at the same school level or with similar reported enrollment.
Carpe Diem High (Continuation)
High · Grades 09–12
19 reported students
Valley Oaks High (Alternative)
High · Grades 07–12
43 reported students
San Antonio High (Continuation)
High · Grades 09–12
65 reported students
Petaluma High
High · Grades 09–12
1,193 reported students
Casa Grande High
High · Grades 09–12
1,653 reported students
Dual Language Immersion Academy Charter
Middle · Grades 07–08
31 reported students