Cinnabar Charter
🇺🇸 Official data · 2025Petaluma, California 94952 · Cinnabar Elementary
#3151 of 5,693 elementary schools in California
#37264 of 50,301 nationally
About Cinnabar Charter
Cinnabar Charter is a charter elementary located in Petaluma, in the Cinnabar Elementary school district of California, United States. It caters for Grades K–8. In 2025 it enrolled 156 students. Publicly funded charter schools operating under a performance contract; free to attend.
Its Success Index (US) is 31.9 out of 100, placing it in the lower 50% of elementary schools in United States and 3151st of 5,693 ranked elementary schools in California. Its strongest component is reading proficiency (56th percentile), and its weakest is math proficiency (11th percentile).
Other published figures: enrollment 156.
There are 33 schools in Petaluma; Cinnabar Charter ranks 27th of 30 scored schools there.
Success Index (US) breakdown
Each component is a percentile against elementary schools across United States.
- Math proficiency (30%)22%
- Reading proficiency (30%)52%
- Community advantage (fewer free/reduced-price lunch) (25%)83.3%
- Students per teacher (15%)17.3
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Cinnabar Charter by the official sources.
- Enrollment
- 156
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 83.3%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 17.3
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 52%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 22%
- Share of tested students proficient or above (all students, all grades).
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Schools near Cinnabar Charter
Closest schools by straight-line distance, with their Success Index (US).
Cinnabar Elementary
Petaluma · Public elementary · Grades K–K
20 students · 0 m away
Mary Collins Charter School at Cherry Valley
Petaluma · Charter elementary · Grades K–8
494 students · 1.9 km away
Meadow Elementary
Petaluma · Public elementary · Grades K–6
384 students · 1.9 km away
Corona Creek Elementary
Petaluma · Public elementary · Grades K–6
403 students · 2.3 km away
Wilson Elementary
Petaluma · Public elementary · Grades K–6
235 students · 2.4 km away
Kenilworth Junior High
Petaluma · Public middle · Grades 7–8
812 students · 2.6 km away
Petaluma Junior High
Petaluma · Public middle · Grades 7–8
454 students · 3.0 km away
Valley Vista Elementary
Petaluma · Public elementary · Grades K–6
155 students · 3.1 km away
McKinley Elementary
Petaluma · Public elementary · Grades K–6
368 students · 3.2 km away
Petaluma Accelerated Charter
Petaluma · Charter middle · Grades 7–8
115 students · 3.2 km away
Similar schools
Charter elementary schools in California with a comparable Enrollment.
Sparrow Academy
La Mesa · Charter elementary · Grades K–5
156 students
Rising Sun Montessori
El Dorado Hills · Charter elementary · Grades K–8
155 students
Sycamore Creek Community Charter
Huntington Beach · Charter elementary · Grades K–8
158 students
Vista Horizon Global Academy
Los Angeles · Charter elementary · Grades K–5
154 students
King-Chavez Arts and Athletics Academy
San Diego · Charter elementary · Grades 4–5
159 students
Empower Language Academy
San Diego · Charter elementary · Grades K–6
153 students
Frequently asked questions
Is Cinnabar Charter a good school?
Cinnabar Charter has a Success Index (US) of 31.9 out of 100 (Lower 50% of elementary schools in United States) and ranks #3151 of 5,693 in California. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Cinnabar Charter rank in California?
Cinnabar Charter ranks #3151 of 5,693 elementary schools in California and #37264 of 50,301 nationally on the Success Index (US) (2025 data).
How many students attend Cinnabar Charter?
Cinnabar Charter had 156 students in 2025.
Is Cinnabar Charter a elementary school or a high school?
Cinnabar Charter is classified as a elementary covering Grades K–8. It is a charter school.
What other schools are near Cinnabar Charter?
There are 10 schools within 15 km of Cinnabar Charter; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.