Cobblestone Elementary
1718 Churchill Way, Plumas Lake, CA 95961 Map
Math (met standard)
43%
+1
state 42% · 2025-26
English (met standard)
48%
+2
state 46% · 2025-26
Science (met standard)
33%
−2
state 35% · 2025-26
Low income
44%
free or reduced-price lunch
Students
590
2024-25
Students per teacher
22.3
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 | 58% state 47% · 2025-26 | 53% state 44% · 2025-26 | — |
| Grade 4 | 42% state 42% · 2025-26 | 48% state 46% · 2025-26 | — |
| Grade 5 | 29% state 37% · 2025-26 | 44% state 49% · 2025-26 | 33% state 35% · 2025-26 |
| All grades | 43% state 42% · 2025-26 | 48% state 46% · 2025-26 | 33% state 35% · 2025-26 |
Results by year (all grades)
| School year | Math | English | Science |
|---|---|---|---|
| 2025-26 | 43% state 42% | 48% state 46% | 33% state 35% |
| 2024-25 | 40% state 41% | 50% state 46% | 32% state 33% |
| 2023-24 | 40% state 41% | 51% state 45% | 50% state 33% |
| 2022-23 | 47% state 40% | 50% state 45% | 34% state 32% |
| 2021-22 | 49% state 38% | 61% state 45% | 46% state 31% |
| 2018-19 | 54% state 44% | 54% state 50% | 38% state 32% |
| 2017-18 | 51% state 43% | 57% state 49% | — |
| 2016-17 | 37% state 40% | 55% state 45% | — |
| 2015-16 | 51% state 39% | 56% state 45% | — |
| 2014-15 | 42% state 35% | 57% state 41% | — |
Students
Race and ethnicity, 2024-25
- Asian 16%
- White 31%
- Hispanic 36%
- Black 6%
- Two or more 11%
- Other 1%
Year-by-year history is loaded from the NCES Common Core of Data (2017-18 onward).
Nearby schools
2025-26 results
Subject percentages show the share of students who met or exceeded the state standard.
| Pick to compare | |||||
|---|---|---|---|---|---|
|
Rio Del Oro Elementary
Grades K–5
· Plumas Lake Elementary
|
0.7 mi |
38%
−4
vs state
|
41%
−5
vs state
|
44% | |
|
Arboga Elementary
Grades K–8
· Marysville Joint Unified
|
3.4 mi |
30%
−10
vs state
|
44%
−4
vs state
|
66% | |
|
Browns Elementary
Grades K–8
· Browns Elementary
|
4.0 mi |
33%
−7
vs state
|
49%
+2
vs state
|
29% |
No schools match this filter.