51±¬ÁÏ

Cinnabar Elementary School District

286 Skillman Ln.
Petaluma, CA 94952-1226
(District boundaries shown in map)
5/
10
Bottom 50%

Top Rankings

Cinnabar Elementary School District ranks among the top 20% of public school district in California for:

Category
Attribute
Student Attention
Lowest student-teacher ratio (Top 1%)
For the 2025-26 school year, there is 1 public charter school serving 160 students in Cinnabar Elementary School District. This district's average charter testing ranking is 5/10, which is in the bottom 50% of public charter schools in California.
Public Charter School in Cinnabar Elementary School District have an average math proficiency score of 27% (versus the California public charter school average of 32%), and reading proficiency score of 32% (versus the 48% statewide average).
Minority enrollment is 82% of the student body (majority Hispanic), which is more than the California public charter school average of 75% (majority Hispanic).

Overview

This School District
This State (CA)
# Schools
2 Schools
1,298 Schools
# Students
176 Students
710,338 Students
# Teachers
11 Teachers
31,359 Teachers
Student-Teacher Ratio
16:1
16:1

Student By Grade

District Rank

Cinnabar Elementary School District, which is ranked #1173 of all 1,908 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
This School District
State Average (CA)
#1140 out of 1932 school districts
(Bottom 50%)
27%
34%
30-34%
47%
11-19%
29%

Students by Ethnicity:

0.37
0.65
% American Indian
n/a
1%
% Asian
n/a
7%
% Hispanic
77%
53%
% Black
1%
7%
% White
18%
25%
% Hawaiian
1%
n/a
% Two or more races
3%
7%
All Ethnic Groups

District Revenue and Spending

The revenue/student of $26,483 is higher than the state median of $19,978. The school district revenue/student has grown by 42% over four school years.
The school district's spending/student of $22,761 is higher than the state median of $18,399. The school district spending/student has grown by 42% over four school years.
This School District
This State (CA)
Total Revenue
$5 MM
$116,387 MM
Spending
$4 MM
$107,188 MM
Revenue / Student
$26,483
$19,978
Spending / Student
$22,761
$18,399

Best Cinnabar Elementary School District Public Charter Schools (2025-26)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Cinnabar Charter
Charter School
(Math: 25-29% | Reading: 30-34%)
Rank:
5/
10
Bottom 50%
286 Skillman Ln.
Petaluma, CA 94952
(707) 765-4345
Gr: K-8 | 160 students Student-teacher ratio: 16:1 Minority enrollment: 82%

Recent Articles

2025 Classroom Size Trends: Are Classes Still Growing?
2025 Classroom Size Trends: Are Classes Still Growing?
A 2025 update on U.S. classroom sizes, policy battles, student outcomes, and whether class sizes continue to expand.
Personalized Learning in 2025: Revolutionizing Education
Personalized Learning in 2025: Revolutionizing Education
Explore how personalized learning is reshaping education in 2025—insights, policy, impact, and real-world models for students, parents, and educators.
How Bullying Impacts Student Academic Performance in 2025
How Bullying Impacts Student Academic Performance in 2025
Explore how bullying harms student achievement, attendance, and well-being — and strategies schools use in 2025 to mitigate its effects.

Quick Facts (2025-26)

  • District size: 2 schools
  • Grades: K-08
  • Enrollment: 176 students
  • Student-Teacher Ratio: 16:1
  • Minority Enrollment: 82%
  • : Bottom 50% in CA
  • : 27% (Top 50%)
  • : 30-34% (Btm 50%)
  • : 11-19% (Btm 50%)
  • Source: National Center for Education Statistics (NCES), CA Dept. of Education

Quick Links