Rio Del Oro Elementary
1220 Zanes Dr., Plumas Lake, CA 95961 Map
Math (met standard)
38%
−4
state 42% · 2025-26
English (met standard)
41%
−5
state 46% · 2025-26
Science (met standard)
34%
−1
state 35% · 2025-26
Low income
44%
free or reduced-price lunch
Students
564
2024-25
Students per teacher
21.7
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 | 40% state 47% · 2025-26 | 40% state 44% · 2025-26 | — |
| Grade 4 | 35% state 42% · 2025-26 | 41% state 46% · 2025-26 | — |
| Grade 5 | 38% state 37% · 2025-26 | 43% state 49% · 2025-26 | 34% state 35% · 2025-26 |
| All grades | 38% state 42% · 2025-26 | 41% state 46% · 2025-26 | 34% state 35% · 2025-26 |
Results by year (all grades)
| School year | Math | English | Science |
|---|---|---|---|
| 2025-26 | 38% state 42% | 41% state 46% | 34% state 35% |
| 2024-25 | 44% state 41% | 56% state 46% | 38% state 33% |
| 2023-24 | 38% state 41% | 52% state 45% | 41% state 33% |
| 2022-23 | 46% state 40% | 53% state 45% | 40% state 32% |
| 2021-22 | 44% state 38% | 58% state 45% | 51% state 31% |
| 2018-19 | 64% state 45% | 68% state 50% | 60% state 32% |
| 2017-18 | 63% state 42% | 73% state 49% | — |
| 2016-17 | 58% state 41% | 64% state 45% | — |
| 2015-16 | 55% state 39% | 65% state 45% | — |
| 2014-15 | 54% state 35% | 59% state 41% | — |
Students
Race and ethnicity, 2024-25
- Asian 10%
- White 37%
- Hispanic 35%
- Black 4%
- Two or more 14%
- 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 | |||||
|---|---|---|---|---|---|
|
Cobblestone Elementary
Grades K–5
· Plumas Lake Elementary
|
0.7 mi |
43%
+1
vs state
|
48%
+2
vs state
|
44% | |
|
Arboga Elementary
Grades K–8
· Marysville Joint Unified
|
2.7 mi |
30%
−10
vs state
|
44%
−4
vs state
|
66% | |
|
Olivehurst Elementary
Grades K–6
· Marysville Joint Unified
|
4.5 mi |
21%
−20
vs state
|
30%
−17
vs state
|
73% | |
|
Browns Elementary
Grades K–8
· Browns Elementary
|
4.7 mi |
33%
−7
vs state
|
49%
+2
vs state
|
29% | |
|
Johnson Park Elementary
Grades K–6
· Marysville Joint Unified
|
4.9 mi |
24%
−17
vs state
|
30%
−17
vs state
|
81% |
No schools match this filter.