Grade Trends

Twin Hills Charter Middle

Grades 6–8 Public charter District: Twin Hills Union Elementary

1685 Watertrough Rd., Sebastopol, CA 95472 Map

Math (met standard)
55%
+18 state 37% · 2025-26
English (met standard)
58%
+8 state 49% · 2025-26
Science (met standard)
54%
+19 state 35% · 2025-26
Low income
21%
free or reduced-price lunch
Students
207
2024-25
Students per teacher
17.0
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 6 40% state 37% · 2025-26 60% state 48% · 2025-26 —
Grade 7 54% state 38% · 2025-26 57% state 51% · 2025-26 —
Grade 8 70% state 36% · 2025-26 56% state 50% · 2025-26 54% state 35% · 2025-26
All grades 55% state 37% · 2025-26 58% state 49% · 2025-26 54% state 35% · 2025-26
Results by year (all grades)
School year Math English Science
2025-26 55% state 37% 58% state 49% 54% state 35%
2024-25 55% state 36% 67% state 49% 49% state 32%
2023-24 52% state 33% 69% state 46% 53% state 29%
2022-23 57% state 32% 74% state 46% 56% state 29%
2021-22 50% state 31% 70% state 47% 40% state 29%
2018-19 51% state 38% 70% state 50% 58% state 31%
2017-18 50% state 37% 63% state 49% —
2016-17 52% state 37% 66% state 48% —
2015-16 40% state 36% 52% state 48% —
2014-15 45% state 33% 58% state 44% —

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
Orchard View
Grades K–12 Charter · Twin Hills Union Elementary
1.1 mi
52%
+17 vs state
71%
+20 vs state
42%
+6 vs state
5% Average of math, English and science: 50% in 2022-23 → 55% in 2025-26 22% 224 White 65%
Sunridge Charter
Grades K–8 Charter · Twin Hills Union Elementary
1.2 mi
46%
+6 vs state
63%
+15 vs state
56%
+21 vs state
4% Average of math, English and science: 59% in 2022-23 → 55% in 2025-26 32% 256 White 76%
Brook Haven Middle
Grades 5–8 · Sebastopol Union Elementary
1.5 mi
32%
−5 vs state
55%
+5 vs state
36%
±0 vs state
Average of math, English and science: 40% in 2022-23 → 41% in 2025-26 43% 212 White 43%
Hillcrest Middle
Grades 6–8 Charter · Gravenstein Union Elementary
1.8 mi
58%
+21 vs state
68%
+18 vs state
44%
+9 vs state
Average of math, English and science: 55% in 2022-23 → 57% in 2025-26 30% 297 White 61%
Sebastopol Independent Charter
Grades K–8 Charter · Sebastopol Independent Charter District
2.4 mi
46%
+6 vs state
61%
+13 vs state
63%
+27 vs state
Average of math, English and science: 58% in 2022-23 → 56% in 2025-26 37% 286 White 74%
Wright Charter
Grades K–8 Charter · Wright Elementary
4.4 mi
20%
−21 vs state
25%
−22 vs state
16%
−19 vs state
3% Average of math, English and science: 23% in 2022-23 → 20% in 2025-26 78% 456 Hispanic 65%
Oak Grove Elementary/Willowside Middle
Grades 1–8 Charter · Oak Grove Union Elementary
4.4 mi
43%
+4 vs state
55%
+6 vs state
48%
+12 vs state
5% Average of math, English and science: 43% in 2022-23 → 48% in 2025-26 27% 708 White 58%