High · California

Sonoma Mountain High (Necessary Small School)

Alternative

Sonoma Mountain High (Necessary Small School), a public high school in Petaluma, California: grades 9–12, 21 students, 10.7 students per teacher (2024–25 school year). Part of Petaluma Joint Union High.

Size and class size

Compared with high schools of the same state and the whole country. Students per teacher counts every full-time-equivalent teacher, not the size of each class.

Students: 21
Teachers (FTE): 2.0
Students per teacher: 10.7
Grades: 9–12; High

Fewer students per teacher than 85% of high schools in California

Median 19.1 · 2,120 schools compared

Fewer students per teacher than 77% of high schools in the US

Median 14.4 · 20,809 schools compared

Smaller than 92% of high schools in California

Median 462 · 2,126 schools compared

Smaller than 94% of high schools in the US

Median 414 · 22,064 schools compared

State test results

No state test results published for this school: state tests cover grades 3–8, and small groups are not published.

What it offers

Grades: High · Grades 9–12
Type: District school · Alternative
Instruction: In person
Area: Small city
Run by: Petaluma Joint Union High

Which school a home is assigned to is decided by the district's attendance zones; check with Petaluma Joint Union High.

Location

Address: 299 Casa Grande Rd., Petaluma, CA 94954
Phone: (707)778-4738
City or town: Petaluma
County: Sonoma County

Website Quality of life in Petaluma Schools in Petaluma

Nearby high schools

The closest public high schools by straight-line distance. Attendance zones are set by each district.

School	Grades	Students	Students / teacher
Casa Grande HighFree meals for all	9–12	1,653	21.5	0.1 mi
Valley Oaks High (Alternative)Alternative	7–12	43	8.0	1.6 mi
San Antonio High (Continuation)AlternativeFree meals for all	9–12	65	8.5	1.6 mi
Carpe Diem High (Continuation)Alternative	9–12	19	9.5	2.7 mi
Petaluma HighFree meals for all	9–12	1,193	20.9	2.7 mi
Credo HighCharter	9–12	441	13.6	7.3 mi

Sources

Public schools and school districts (National Center for Education Statistics · U.S. Census Bureau), 2024–25 school year. NCES Common Core of Data and EDGE public school geocodes; U.S. Census Bureau, Annual Survey of School System Finances and cartographic boundary files (places).

Analisa does not rate schools. Figures are what a school has (students, teachers, programs), placed among schools of the same level; state test results are compared only within a state.

NCES 063025001788