Below Average
#8068 of 9,539 schools in CA
Cinnabar Charter
Elementary School · Cinnabar Elementary
286 Skillman Ln., Petaluma, CA 94952
Enrollment
160
Student-Teacher
17.8:1
Score
4.4
Grades
Kindergarten – 8th
Enrollment
160
Student-Teacher
17.8:1
Score
4.4
Grades
Kindergarten – 8th
Data vintage
2022-23
Data vintage2022-23
How this school compares
California schools
#8,068 of 9,539
In Petaluma
#27 of 30
public schools
School environment
8.9 / 10
Excellent
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Cinnabar Charter
Elementary School in Petaluma · grades Kindergarten – 8th. Start here, then compare fit against nearby and district options.
Cinnabar Elementary
0.0 mi away. Use as a geographic alternative in the same move search.
Mary Collins Charter School at Cherry Valley
1.2 mi away. Use as a geographic alternative in the same move search.
About Cinnabar Charter
Cinnabar Charter is a public elementary school in Petaluma, CA, part of Cinnabar Elementary. Cinnabar Charter serves approximately 160 students, and covers grades Kindergarten-8th, and has a 17.8:1 student-teacher ratio. Cinnabar Charter has a current MySchoolScout rating of 4.4 out of 10 and ranks #8,068 of 9,539 schools in CA.
Structured state assessment records for Cinnabar Charter show 30% math proficiency (multi-year average, 2009-2024) and 39% reading/ELA proficiency (multi-year average, 2009-2024).
- This school 4.4 · Below Average
- CA avg 6.2
What Parents Should Know
At 160 students, Cinnabar Charter is on the smaller side. That usually buys more individual attention and teachers who know every kid by name, with the trade-off of fewer electives and extracurriculars than a larger school can staff. Ask what activities it actually offers.
Cinnabar Charter is a charter school: publicly funded, but run with more independence than a traditional district school. Many charters are built around a specific model or focus, so it's worth understanding this one's mission, how enrollment works, and how it differs from the district schools nearby.
31% of students at Cinnabar Charter were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Cinnabar Charter — Students at Cinnabar Charter score 20% proficient, which is below what's typical for similar communities (expected: 27%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
84.4%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 36 test records from CA state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
Source: EdFacts (NCES) and state assessment data. Growth score: 2.8/10.
How Cinnabar Charter Compares
See how Cinnabar Charter performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Location
286 Skillman Ln., Petaluma, CA 94952
Nearby Alternatives
Families considering Cinnabar Charter may also want to explore other elementary schools in the area. Meadow Elementary (rated 7.7/10, 1.2 miles away), which scores notably higher. Another option is Sonoma Mountain Elementary (rated 7.7/10, 2.0 miles away), which scores notably higher. Additionally, McKinley Elementary (rated 7.5/10, 2.0 miles away), which scores notably higher. For more schools in Petaluma, see our Petaluma schools guide .
Nearby Schools
20 within 2.1 mi| School | Distance | Rating |
|---|---|---|
| Cinnabar Elementary Petaluma | 0.0 mi | — |
| Mary Collins Charter School at Cherry Valley Petaluma | 1.2 mi | 6.3 |
| Saint Vincent de Paul College Preparatory Petaluma | 1.3 mi | — |
| ST VINCENT DE PAUL HIGH SCHOOL Petaluma | 1.3 mi | 7.6 |
| Meadow Elementary Petaluma | 1.2 mi | 7.7 |
| Corona Creek Elementary Petaluma | 1.4 mi | 6.4 |
| Wilson Elementary Petaluma | 1.5 mi | 7.1 |
| Petaluma Junior High Petaluma | 1.9 mi | 6.2 |
| Kenilworth Junior High Petaluma | 1.6 mi | 7.3 |
| Valley Vista Elementary Petaluma | 1.9 mi | 3.1 |
| ST VINCENT DE PAUL ELEMENTARY SCHOOL Petaluma | 1.9 mi | 4.9 |
| The Spring Hill School Petaluma | 2.0 mi | — |
| McKinley Elementary Petaluma | 2.0 mi | 7.5 |
| Petaluma Accelerated Charter Petaluma | 2.0 mi | 8.1 |
| South County Consortium Petaluma | 2.3 mi | 7.4 |
| Sonoma Mountain Elementary Petaluma | 2.0 mi | 7.7 |
| Petaluma High Petaluma | 2.4 mi | 6.8 |
| Carpe Diem High (Continuation) Petaluma | 2.5 mi | — |
| BRIGHT SKIES MONTESSORI SCHOOL Penngrove | 2.6 mi | — |
| Loma Vista Immersion Academy Petaluma | 2.1 mi | 7.5 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 94952 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$115,097
Median Home Value
$1,016,800
Median Rent
$2,272/mo
Population
33,339
College Educated
47.5%
Homeownership
59.9%
Avg Commute
28.3 min
Poverty Rate
6.6%
Median Age
44.5
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Achieve Charter School of Chico Chico, CA | 4.4 |
| BETHANY CHRISTIAN SCHOOL Thousand Oaks, CA | 4.4 |
| El Mirage Adelanto, CA | 4.4 |
| FAITH CHRISTIAN ELEMENTARY SCHOOL Yuba City, CA | 4.4 |
| GUARDIAN ANGEL ELEMENTARY Pacoima, CA | 4.4 |
| Glenwood Elementary Sun Valley, CA | 4.4 |
Frequently Asked Questions
Common questions about Cinnabar Charter
What grades does Cinnabar Charter serve?
Cinnabar Charter serves students in grades Kindergarten through 8th.
How many students attend Cinnabar Charter?
Cinnabar Charter has an enrollment of approximately 160 students.
What is the student-teacher ratio at Cinnabar Charter?
The student-teacher ratio at Cinnabar Charter is 17.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Cinnabar Charter rank in CA?
Cinnabar Charter ranks #8,068 of 9,539 schools in CA.
What is Cinnabar Charter's MySchoolScout rating?
Cinnabar Charter has a current MySchoolScout rating of 4.4 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Cinnabar Charter?
Based on loaded state assessment records, Cinnabar Charter has 30% math proficiency (multi-year average, 2009-2024) and 39% reading/ELA proficiency (multi-year average, 2009-2024).
Is Cinnabar Charter a charter school?
Yes, Cinnabar Charter is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.
Is Cinnabar Charter a Title I school?
No, Cinnabar Charter is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Cinnabar Charter?
84.4% of students at Cinnabar Charter qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
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Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 8th
- Enrollment
- 160
- Student-Teacher Ratio
- 17.8:1
- Teachers (FTE)
- 9
- Free/Reduced Lunch
- 84.4%
- Type
- regular
- Setting
- Small Suburb
- County
- Sonoma County
- Chronic Absenteeism (SY 2022-23)
- 31.2%
- Phone
- (707) 765-4345
Resources & Links
District
Cinnabar Elementary- District Enrollment
- 176
- Schools in District
- 2
- Per-Pupil Spending
- $19,638
- District Rank
- #1 of 1
Other Schools in This District
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