River Islands High
16601 Riptide Way, Lathrop, CA 95330 Map
Math (met standard)
30%
−2
state 32% · 2025-26
English (met standard)
56%
−1
state 57% · 2025-26
Science (met standard)
19%
−19
state 39% · 2025-26
Low income
38%
free or reduced-price lunch
Students
512
2024-25
Students per teacher
18.6
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 11 | 30% state 32% · 2025-26 | 56% state 57% · 2025-26 | — |
| All grades | 30% state 32% · 2025-26 | 56% state 57% · 2025-26 | 19% state 39% · 2025-26 |
Results by year (all grades)
| School year | Math | English | Science |
|---|---|---|---|
| 2025-26 | 30% state 32% | 56% state 57% | 19% state 39% |
| 2024-25 | 32% state 31% | 53% state 57% | 24% state 34% |
| 2023-24 | — | — | 21% state 25% |
Graduation & college
4-year graduation rate
100%
state 88% · 2025-26
Graduates meeting UC/CSU (A–G)
62%
state 55% · 2025-26
Graduation rate: students who earned a regular diploma within four years. UC/CSU: share of graduates who completed the A–G courses required by the University of California and California State University. College-going: share of high school completers who enrolled in any college within 12 months.
Students
Race and ethnicity, 2024-25
- Asian 48%
- White 8%
- Hispanic 30%
- Black 11%
- Two or more 1%
- Other 2%
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 | |||||
|---|---|---|---|---|---|
|
Lathrop High
Grades 9–12
· Manteca Unified
|
2.9 mi |
22%
−9
vs state
|
56%
−1
vs state
|
62% |
No schools match this filter.