Cinnabar Charter
Elementary school in Petaluma, CA · Cinnabar Elementary · Grades K-6 · Charter
On the spring 2026 state tests, 30% of Cinnabar Charter students met or exceeded California's reading (ELA) standard and 19% met the math standard. In reading, that is 19 points below the California average (49%). Its reading result is higher than 24% of Bay Area elementary schools, and it ranks 19th of 20 public elementary schools in Petaluma. Reading results in 2026 were 5 points higher than in 2024, and math results were 3 points higher than in 2024.
Test scores, 2024 to 2026
| Subject | Spring 2024 | Spring 2025 | Spring 2026 | Change |
|---|---|---|---|---|
| Reading (ELA) | 25% | 30% | 30% | +5 pts |
| Math | 16% | 17% | 19% | +3 pts |
Compared with nearby averages
| Spring 2026 | Reading (ELA) | Math |
|---|---|---|
| Cinnabar Charter | 30% | 19% |
| Sonoma County | 45% | 33% |
| California | 49% | 38% |
Results by grade, spring 2026
| Grade | Reading (ELA) | Math |
|---|---|---|
| 3rd grade | 25% | 19% |
| 4th grade | 16% | 11% |
| 5th grade | 39% | 25% |
| 6th grade | 21% | 5% |
| 7th grade | 33% | 17% |
| 8th grade | 46% | 38% |
Students are tested in grades 3 to 8 and 11. Each grade is a different group of students, so differences between grades are not a trend.
Homes near Cinnabar Charter
The typical home value in ZIP code 94952, where Cinnabar Charter is located, is $1.06M, up 3.4% over the past year (Zillow Home Value Index). Prices inside the school's attendance zone can differ.
Charter schools usually admit by application or lottery, so where you live may not decide whether your child can attend.
Nearby elementary schools
| Distance | School | Reading (ELA) | Math | Typical home value (ZIP) |
|---|---|---|---|---|
| 0.1 mi | Cinnabar ElementaryPetaluma · Grades K | n/a | n/a | $1.06M |
| 1.0 mi | Mary Collins Charter School at Cherry Valley CharterPetaluma · Grades K-8 | 67% | 52% | $1.06M |
| 1.1 mi | Meadow ElementaryPetaluma · Grades K-6 | 73% | 68% | $829K |
| 1.5 mi | Corona Creek ElementaryPetaluma · Grades K-6 | 67% | 58% | $829K |
| 1.5 mi | Wilson ElementaryPetaluma · Grades K-6 | 52% | 46% | $1.06M |
| 1.8 mi | Valley Vista Public Waldorf CharterPetaluma · Grades K-8 | 49% | 30% | $1.06M |
School details
- Address
- 286 Skillman Lane, Petaluma, CA 94952
Get directions · See it on our map - Phone
- (707) 765-4345
- District
- Cinnabar Elementary
- County
- Sonoma County
- Grades
- K-6
- Students
- 151 (2025-26)
- Type
- Elementary school · Traditional · Charter
- Website
- www.cinnabar.org
- State school code
- 49706496051635
Common questions
How did Cinnabar Charter do on state tests?
In spring 2026, 30% of students met or exceeded the reading (ELA) standard and 19% met the math standard, compared with 49% and 38% across California.
How many students attend Cinnabar Charter?
151 students were enrolled in the 2025-26 school year, in grades K-6.
How much do homes cost near Cinnabar Charter?
The typical home value in ZIP code 94952, where Cinnabar Charter is located, is $1.06M, up 3.4% over the past year (Zillow Home Value Index). Prices inside the school's attendance zone can differ.
Does living near Cinnabar Charter guarantee a spot?
No. As a charter school it usually admits by application or lottery rather than by address.