Top Rankings
Petaluma Joint Union High School District ranks among the top 20% of public school district in California for:
Category
Attribute
Community Size
Largest student body (number of students) (Top 1%)
For the 2025-26 school year, there are 2 public charter schools serving 598 students in Petaluma Joint Union High School District. This district's average charter testing ranking is 10/10, which is in the top 10% of public charter schools in California.
Public Charter Schools in Petaluma Joint Union High School District have an average math proficiency score of 60% (versus the California public charter school average of 32%), and reading proficiency score of 68% (versus the 48% statewide average).
Minority enrollment is 30% of the student body (majority Hispanic), which is less than the California public charter school average of 75% (majority Hispanic).
Overview
This School District
This State (CA)
# Schools
10 Schools
1,298 Schools
# Students
4,902 Students
710,338 Students
# Teachers
234 Teachers
31,359 Teachers
Student-Teacher Ratio
21:1
21:1
Student By Grade
District Rank
Petaluma Joint Union High School District, which is ranked #450 of all 1,908 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 90% has increased from 89% over five school years.
Overall District Rank
#456 out of 1932 school districts
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
37%
34%
Reading/Language Arts Test Scores (% Proficient)
58%
47%
Science Test Scores (% Proficient)
37%
29%
Graduation Rate
90%
87%
Students by Ethnicity:
Diversity Score
0.60
0.65
% American Indian
1%
1%
% Asian
3%
7%
% Hispanic
37%
53%
% Black
1%
7%
% White
52%
25%
% Hawaiian
n/a
n/a
% Two or more races
6%
7%
All Ethnic Groups
Best Petaluma Joint Union High School District Public Charter Schools (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Petaluma Accelerated Charter
Charter School
(Math: ≥95% | Reading: 90-94%)
Rank:
Rank:
10/
Top 1%10
110 Ellis St.
Petaluma, CA 94952
(707) 778-4750
Petaluma, CA 94952
(707) 778-4750
Gr: 7-8 | 116 students Student-teacher ratio: 29:1 Minority enrollment: 45%
Rank: #22.
Mary Collins Charter School At Cherry Valley
Charter School
(Math: 44% | Reading: 57%)
Rank:
Rank:
8/
Top 30%10
1001 Cherry St.
Petaluma, CA 94952
(707) 778-4740
Petaluma, CA 94952
(707) 778-4740
Gr: K-8 | 482 students Student-teacher ratio: 24:1 Minority enrollment: 26%
Recent Articles

Bullying, Name-Calling & Put-Downs: Parent Guide 2025
Practical tips for parents to address bullying, name-calling, and put-downs鈥攚ith 2025 data, policies, and expert strategies.

What Is a Magnet School? (2025 Guide)
Explore what a magnet school is, how it works, and its benefits in 2025. Clear explanation for parents, students, and educators.

Cooperative Learning in 2025: Evidence, Best Practices & Challenges
Explore cooperative learning in 2025鈥攏ew data, updated practices, expert insights for educators and families.