Colony High
3850 East Riverside Dr., Ontario, CA 91761 Map
Math (met standard)
25%
−7
state 32% · 2025-26
English (met standard)
56%
−2
state 57% · 2025-26
Science (met standard)
29%
−7
state 36% · 2025-26
Low income
70%
free or reduced-price lunch
Students
2,109
2024-25
Students per teacher
25.9
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 | 25% state 32% · 2025-26 | 56% state 57% · 2025-26 | — |
| All grades | 25% state 32% · 2025-26 | 56% state 57% · 2025-26 | 29% state 36% · 2025-26 |
Results by year (all grades)
| School year | Math | English | Science |
|---|---|---|---|
| 2025-26 | 25% state 32% | 56% state 57% | 29% state 36% |
| 2024-25 | 21% state 31% | 54% state 57% | 24% state 28% |
| 2023-24 | 19% state 28% | 58% state 56% | 27% state 27% |
| 2022-23 | 25% state 27% | 66% state 55% | 20% state 27% |
| 2021-22 | 25% state 27% | 62% state 55% | 22% state 27% |
| 2020-21 | 41% state 34% | 67% state 59% | 29% state 28% |
| 2018-19 | 35% state 32% | 60% state 57% | 18% state 26% |
| 2017-18 | 38% state 31% | 60% state 56% | — |
| 2016-17 | 32% state 32% | 48% state 60% | — |
| 2015-16 | 28% state 32% | 62% state 59% | — |
| 2014-15 | 31% state 30% | 59% state 56% | — |
Graduation & college
4-year graduation rate
94%
state 88% · 2025-26
Graduates meeting UC/CSU (A–G)
67%
state 55% · 2025-26
College-going rate
67%
state 66% · 2022-23
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 9%
- White 7%
- Hispanic 66%
- Black 13%
- Two or more 3%
- 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 | |||||
|---|---|---|---|---|---|
|
Jurupa Valley High
Grades 9–12
· Jurupa Unified
|
2.9 mi |
15%
−16
vs state
|
42%
−16
vs state
|
82% | |
|
Eleanor Roosevelt High
Grades 9–12
· Corona-Norco Unified
|
4.4 mi |
56%
+24
vs state
|
75%
+17
vs state
|
66% | |
|
Henry J. Kaiser High
Grades 9–12
· Fontana Unified
|
5.0 mi |
29%
−3
vs state
|
46%
−12
vs state
|
86% |
No schools match this filter.