Cinnabar Charter

Grades K–8 Public charter District: Cinnabar Elementary

286 Skillman Ln., Petaluma, CA 94952 Map

Math (met standard)
19%
−21 state 39% · 2025-26
English (met standard)
30%
−18 state 48% · 2025-26
Science (met standard)
29%
−6 state 35% · 2025-26
Low income
83%
free or reduced-price lunch
Students
156
2024-25
Students per teacher
16.4
2024-25

Test score trends

Share of students who met or exceeded the state standard each year.

Latest results by grade

Grade Math English Science
Grade 3 19% state 47% · 2025-26 25% state 44% · 2025-26 —
Grade 4 11% state 42% · 2025-26 16% state 46% · 2025-26 —
Grade 5 25% state 37% · 2025-26 39% state 49% · 2025-26 25% state 35% · 2025-26
Grade 6 5% state 37% · 2025-26 21% state 48% · 2025-26 —
Grade 7 17% state 38% · 2025-26 33% state 51% · 2025-26 —
Grade 8 39% state 36% · 2025-26 46% state 50% · 2025-26 39% state 35% · 2025-26
All grades 19% state 39% · 2025-26 30% state 48% · 2025-26 29% state 35% · 2025-26
Results by year (all grades)
School year Math English Science
2025-26 19% state 39% 30% state 48% 29% state 35%
2024-25 17% state 40% 30% state 47% 17% state 33%
2023-24 16% state 38% 25% state 45% 6% state 31%
2022-23 25% state 36% 26% state 45% 20% state 30%
2021-22 20% state 34% 34% state 46% 14% state 30%
2018-19 24% state 42% 51% state 50% 28% state 31%
2017-18 29% state 40% 42% state 49% —
2016-17 31% state 39% 41% state 47% —
2015-16 28% state 37% 51% state 47% —
2014-15 27% state 34% 37% state 43% —

Students

Race and ethnicity, 2024-25

Year-by-year history is loaded from the NCES Common Core of Data (2017-18 onward).

Nearby schools

Subject percentages show the share of students who met or exceeded the state standard.

Pick to compare
Mary Collins Charter School at Cherry Valley
Grades K–8 Charter · Petaluma Joint Union High
1.2 mi
52%
+13 vs state
67%
+19 vs state
52%
+16 vs state
9% Average of math, English and science: 48% in 2022-23 → 57% in 2025-26 27% 494 White 73%
Meadow Elementary
Grades K–6 · Waugh Elementary
1.2 mi
68%
+28 vs state
73%
+26 vs state
60%
+25 vs state
Average of math, English and science: 66% in 2022-23 → 67% in 2025-26 13% 384 White 59%
Corona Creek Elementary
Grades K–6 · Waugh Elementary
1.4 mi
58%
+18 vs state
67%
+21 vs state
54%
+19 vs state
Average of math, English and science: 59% in 2022-23 → 60% in 2025-26 14% 403 White 63%
Wilson Elementary
Grades K–6 · Wilmar Union Elementary
1.5 mi
46%
+5 vs state
52%
+6 vs state
42%
+7 vs state
10% Average of math, English and science: 57% in 2022-23 → 47% in 2025-26 20% 235 White 78%
Kenilworth Junior High
Grades 7–8 · Petaluma Joint Union High
1.6 mi
43%
+6 vs state
52%
+2 vs state
34%
−2 vs state
3% Average of math, English and science: 40% in 2022-23 → 43% in 2025-26 45% 812 White 49%
Petaluma Junior High
Grades 7–8 · Petaluma Joint Union High
1.9 mi
34%
−3 vs state
50%
±0 vs state
28%
−7 vs state
Average of math, English and science: 39% in 2022-23 → 37% in 2025-26 45% 454 White 56%
Valley Vista Elementary
Grades K–6 · Petaluma City Elementary
1.9 mi
21%
−19 vs state · 2024-25
20%
−26 vs state · 2024-25
0%
−33 vs state · 2024-25
18% Average of math, English and science: 32% in 2021-22 → 14% in 2024-25 66% 155 Hispanic 52%
Valley Vista Public Waldorf
Grades K–8 Charter · Petaluma City Elementary
1.9 mi
30%
−11 vs state
49%
+1 vs state
49%
+14 vs state
Not enough years of data — —
McKinley Elementary
Grades K–6 · Petaluma City Elementary
2.0 mi
38%
−3 vs state
44%
−3 vs state
27%
−9 vs state
6% Average of math, English and science: 42% in 2022-23 → 36% in 2025-26 51% 368 Hispanic 47%
Petaluma Accelerated Charter
Grades 7–8 Charter · Petaluma Joint Union High
2.0 mi
86%
+49 vs state
89%
+39 vs state
78%
+43 vs state
12% Average of math, English and science: 96% in 2022-23 → 84% in 2025-26 28% 115 White 53%