How does Cinnabar Charter compare to other elementary schools in Petaluma?

Cinnabar Charter has a SchoolScope composite score of 32.7/100, placing it at the 15th percentile statewide. 6% of students exceed standard, with a total of 390 students tested across grades and subjects.

What percentage of students exceed standards at Cinnabar Charter?

6.0% of students at Cinnabar Charter exceed the state standard on CAASPP assessments, while 23.0% meet or exceed it. The gap between these two numbers reveals whether the school pushes students beyond basic proficiency.

Is Cinnabar Charter improving or declining?

Cinnabar Charter's proficiency rate decreases by 0.9 percentage points from grade 3 to grade 5, suggesting the school is not sustaining early academic gains.

What is the chronic absenteeism rate at Cinnabar Charter?

20.9% of students at Cinnabar Charter are chronically absent (missing 10% or more of school days). This metric reflects school culture and family engagement, and is weighted at 15% in our composite score.

Cinnabar Charter

Cinnabar Elementary Petaluma Sonoma County 94952 Charter

Composite Score

out of 100

State Percentile

of elementary schools

State Rank

390 students tested

School overview

Enrollment

160 students

Student-Teacher Ratio

18:1

Free/Reduced Lunch

84%

Teachers

9 full-time

Student demographics

Hispanic 76.3%

White 18.1%

Black 1.3%

Other 4.4%

Performance breakdown

Performance breakdown for Cinnabar Charter
Category	Percentage
Exceeded Standard	6.0%
Met Standard	16.9%
Below Standard	77.0%

Exceeded

6.0%

Met

16.9%

Below

77.0%

What other rankings don't show you

Most rating sites report "23% proficient" for Cinnabar Charter and stop there. Here's what that number hides:

6.0% of students exceeded standard while 16.9% merely met it. That exceeded rate is 14.9 points below the state average of 21.0%. The 11 nearby schools within ~3 miles average 25.4% exceeded — 19.4 points higher. The gap between "met" and "exceeded" is the difference between a school that clears the bar and one that raises it.

Proficiency drops by 0.9 percentage points from grade 3 to grade 5 — a signal that the school may not be sustaining early gains.

Chronic absenteeism is 20.9%, above the state average of 18.7%.

Key metrics

% Exceeded Standard

6.0%

Students scoring above proficient

% Met or Above

23.0%

Students meeting standard

Growth (G3→G5)

-0.9pp

Change in proficiency rate

Chronic Absenteeism

20.9%

Students missing 10%+ of days

Suspension Rate

7.2%

Students suspended at least once

Total Tested

390

Across all grades & subjects

ELA scores by grade

Grade	Tested	Exceeded	Met	Nearly Met	Not Met	Met+Above
3rd	18	22.2%	16.7%	16.7%	44.4%	38.9%
4th	25	16.0%	16.0%	24.0%	44.0%	32.0%
5th	20	10.0%	20.0%	25.0%	45.0%	30.0%
6th	14	0.0%	21.4%	57.1%	21.4%	21.4%
7th	15	6.7%	20.0%	26.7%	46.7%	26.7%
8th	10	—	—	—	—	—

Math scores by grade

Grade	Tested	Exceeded	Met	Nearly Met	Not Met	Met+Above
3rd	18	0.0%	16.7%	11.1%	72.2%	16.7%
4th	25	4.0%	8.0%	40.0%	48.0%	12.0%
5th	21	0.0%	23.8%	14.3%	61.9%	23.8%
6th	14	0.0%	14.3%	35.7%	50.0%	14.3%
7th	15	0.0%	13.3%	26.7%	60.0%	13.3%
8th	10	—	—	—	—	—