Grade Trends

Twin Ridges Home Study Charter

Grades K–8 Public charter District: Nevada County Office of Education

111 New Mohawk Rd., Nevada City, CA 95959 Map

Math (met standard)
16%
−23 state 40% · 2025-26
English (met standard)
36%
−12 state 48% · 2025-26
Science (met standard)
43%
+8 state 35% · 2025-26
Low income
48%
free or reduced-price lunch
Students
208
2024-25
Students per teacher
19.3
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 9% state 47% · 2025-26 27% state 44% · 2025-26 —
Grade 4 28% state 42% · 2025-26 22% state 46% · 2025-26 —
Grade 5 14% state 37% · 2025-26 41% state 49% · 2025-26 41% state 35% · 2025-26
Grade 6 15% state 37% · 2025-26 32% state 48% · 2025-26 —
Grade 7 16% state 38% · 2025-26 53% state 51% · 2025-26 —
Grade 8 25% state 32% · 2023-24 37% state 46% · 2023-24 35% state 29% · 2023-24
All grades 16% state 40% · 2025-26 36% state 48% · 2025-26 43% state 35% · 2025-26
Results by year (all grades)
School year Math English Science
2025-26 16% state 40% 36% state 48% 43% state 35%
2024-25 22% state 39% 38% state 47% 39% state 33%
2023-24 28% state 37% 38% state 45% 35% state 30%
2022-23 30% state 37% 42% state 45% 44% state 31%
2021-22 33% state 36% 46% state 45% 42% state 31%
2020-21 45% state 33% 56% state 44% 43% state 30%
2018-19 20% state 44% 41% state 50% 26% state 32%
2017-18 20% state 47% 47% state 48% —
2016-17 27% 59% —
2015-16 17% state 36% 54% state 48% —
2014-15 24% state 37% 49% state 40% —

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
Forest Charter
Grades K–12 Charter · Nevada County Office of Education
0.7 mi
21%
−17 vs state
33%
−16 vs state
37%
+2 vs state
7% Average of math, English and science: 38% in 2022-23 → 31% in 2025-26 44% 845 White 78%
Deer Creek Elementary
Grades K–3 · Nevada City Elementary
0.7 mi
60%
+13 vs state
70%
+26 vs state
— 8% Average of math, English and science: 57% in 2022-23 → 65% in 2025-26 37% 259 White 78%
Nevada County Special Education
Grades K–8 Special education · Nevada County Office of Education
0.8 mi
6%
6%
— Not enough years of data 59% 51 White 68%
Seven Hills Intermediate
Grades 4–8 · Nevada City Elementary
0.9 mi
42%
+4 vs state
59%
+10 vs state
57%
+22 vs state
4% Average of math, English and science: 48% in 2022-23 → 52% in 2025-26 34% 432 White 83%
Union Hill Elementary
Grades K–6 Charter · Union Hill Elementary
3.2 mi
40%
−1 vs state
45%
−2 vs state
31%
−5 vs state
Average of math, English and science: 37% in 2022-23 → 38% in 2025-26 46% 542 White 79%
Union Hill Middle
Grades 7–8 · Union Hill Elementary
3.2 mi
41%
+4 vs state
39%
−11 vs state
26%
−9 vs state
10% Average of math, English and science: 45% in 2022-23 → 35% in 2025-26 32% 146 White 73%
Grass Valley Charter
Grades K–8 Charter · Grass Valley Elementary
3.3 mi
43%
+4 vs state
51%
+3 vs state
43%
+8 vs state
Average of math, English and science: 45% in 2022-23 → 46% in 2025-26 33% 546 White 83%
Bell Hill Academy
Grades K–4 · Grass Valley Elementary
3.5 mi
44%
±0 vs state
40%
−5 vs state
— 8% Average of math, English and science: 50% in 2022-23 → 42% in 2025-26 59% 246 Hispanic 48%
Lyman Gilmore Middle
Grades 5–8 · Grass Valley Elementary
3.6 mi
25%
−12 vs state
41%
−8 vs state
34%
−1 vs state
Average of math, English and science: 31% in 2022-23 → 33% in 2025-26 73% 464 White 67%
Margaret G. Scotten Elementary
Grades K–4 · Grass Valley Elementary
3.7 mi
29%
−16 vs state
31%
−14 vs state
— Average of math, English and science: 28% in 2022-23 → 30% in 2025-26 75% 357 White 72%