Charter SchoolElementary

Sonoma Mountain Elementary

1900 Rainier Cir., Petaluma, CA 94954

ASchola Grade
Grades
K–6
Elementary
Students
422
Enrolled 2024–25
Students per teacher
24.8 : 1
Full-time teachers
District
Old Adobe Union
Sonoma County

Schola Grade A · Excellent

Letter grade (A–F) · compared with 5,632 California elementary schools · How we grade
Test scores62% proficient in math & reading
82ndpercentile
Equity50% of low-income students proficient
86thpercentile
Attendance9% chronically absent
95thpercentile
Class size24.8 students per teacher
19thpercentile

Percentiles compare this school with other California elementary 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 Sonoma Mountain Elementary

Sonoma Mountain Elementary is a charter elementary school in Petaluma, California, serving grades K–6. It is part of Old Adobe Union. The school is located in a small city in Sonoma County.

In the 2024–25 school year, 422 students were enrolled, with about 24.8 students for every full-time teacher. That ratio is larger than the typical California elementary school (21.4 students per teacher). As a charter school, it is publicly funded and tuition-free, but operates independently of the local district under a charter from Old Adobe Union. Its Schola Grade is A (excellent), compared with 5,632 California elementary schools.

Grades & enrollment

Students per grade, 2024–25Grades K–6

Location & nearby schools

1900 Rainier Cir.
Petaluma, CA 94954
Open in Google Maps

School details

Type
Charter School · What this means
Level
Elementary
Grades offered
K–6
Enrollment (2024–25)
422 students
Students per teacher
24.8 to 1
Charter school
Yes
Charter authorizer
Old Adobe Union
Magnet school
No
Locale
City — Small
School district
Old Adobe Union
County
Sonoma County
NCES school ID
062832007455

Schools near Sonoma Mountain Elementary

All 45 schools in Petaluma →

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.