Serving 422 students in grades Kindergarten-6, Sonoma Mountain Elementary School ranks in the top 20% of all schools in California for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 61% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 66% (which is higher than the California state average of 47%).
The student-teacher ratio of 25:1 is higher than the California state level of 21:1.
Minority enrollment is 30% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
Quick Facts (2026-27)
- School Type: Charter School
- Grades: Kindergarten-6
- Enrollment: 422 students
- Student-Teacher Ratio: 25:1
- Minority Enrollment: 30%
- Overall Testing Rank: Top 20% in CA
- Math Proficiency: 61% (Top 20%)
- Reading Proficiency: 66% (Top 20%)
- Science Proficiency: 30-39% (Top 50%)
- Attendance Zone: Sonoma Mountain Elementary serves the southeast part of Petaluma, CA, covering an area of approximately 35.9 square miles. Most students typically have a drive of 10 to 15 minutes to reach the school, with the furthest edge of the attendance zone being about 20.3 miles away.
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Sonoma Mountain Elementary School ranks among the top 20% of public schools in California for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
School Overview
Sonoma Mountain Elementary School's student population of 422 students has declined by 8% over five school years.
The teacher population of 17 teachers has stayed relatively flat over five school years.
School Type
Grades Offered
Grades Kindergarten-6
Total Students
422 students
Total Classroom Teachers
17 teachers
School Rankings
Sonoma Mountain Elementary School ranks within the top 20% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Sonoma Mountain Elementary School is 0.48, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1351 out of 9523 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
61%
34%
Reading/Language Arts Test Scores (% Proficient)
66%
47%
Science Test Scores (% Proficient)
30-39%
29%
Student-Teacher Ratio
25:1
21:1
American Indian
1%
1%
Asian
5%
12%
Hispanic
14%
56%
Black
n/a
5%
White
70%
20%
Hawaiian
n/a
n/a
Two or more races
10%
6%
All Ethnic Groups
Chronically Absent Students
(22-23)9.5%
27.7%
Eligible for Free Lunch
14%
54%
Eligible for Reduced Lunch
1%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Sonoma Mountain Elementary School's ranking?
Sonoma Mountain Elementary School is ranked #1351 out of 9,523 schools, which ranks it among the top 20% of public schools in California.
What schools are Sonoma Mountain Elementary School often compared to?
Sonoma Mountain Elementary Schoolis often viewed alongside schools like Meadow Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
61% of students have achieved math proficiency (compared to the 34% CA state average), while 66% of students have achieved reading proficiency (compared to the 47% CA state average).
How many students attend Sonoma Mountain Elementary School?
422 students attend Sonoma Mountain Elementary School.
What is the racial composition of the student body?
70% of Sonoma Mountain Elementary School students are White, 14% of students are Hispanic, 10% of students are Two or more races, 5% of students are Asian, and 1% of students are American Indian.
What is the student-teacher ratio of Sonoma Mountain Elementary School?
Sonoma Mountain Elementary School has a student ration of 25:1, which is higher than the California state average of 21:1.
What grades does Sonoma Mountain Elementary School offer ?
Sonoma Mountain Elementary School offers enrollment in grades Kindergarten-6
What school district is Sonoma Mountain Elementary School part of?
Sonoma Mountain Elementary School is part of Old Adobe Union School District.
School Reviews
Review Sonoma Mountain Elementary School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
What Makes an Elementary School Feel Supportive?
Discover what makes one elementary school more supportive than another, from teacher relationships and family communication to classroom attention, belonging, student services, leadership, routines, and responsive academic support systems.
Second School Tour: Questions Parents Forget to Ask
A second school tour can reveal what families miss initially. Learn which questions to ask about teachers, support, schedules, safety, communication, programs, and everyday student life before enrolling.
Attendance Policies Are Changing: Parent Guide 2026
Attendance policies are changing across public schools. Learn what parents should examine about absences, tardiness, interventions, flexibility, communication, and student support before choosing a school for their child today.
