# Colony High

Colony High is a high school in Ontario, California. Reading proficiency is 53.7%, -11.8 points from 2023 to 2025. Math proficiency is 20.9%, -4.2 points from 2023 to 2025.

## Key Stats

| Metric | Value |
| --- | --- |
| Canonical URL | https://caschooltrends.com/schools/colony-high-ontario |
| District | Chaffey Joint Union High |
| Address | 3850 East Riverside Drive, Ontario, CA, 91761-2603 |
| Grade span | 9-12 |
| Charter status | Non-charter |
| Enrollment | N/A |
| Student / teacher ratio | 26:1 |
| Per-student spending | $18,894 |
| Low-Income Students | 1,560 (74.0%) |
| English Learners | 191 (9.1%) |

## Reading Proficiency History

| Year | Proficient % | Tested Students |
| --- | --- | --- |
| 2023 | 65.6% | 485 |
| 2024 | 58.3% | 494 |
| 2025 | 53.7% | 482 |

## Math Proficiency History

| Year | Proficient % | Tested Students |
| --- | --- | --- |
| 2023 | 25.2% | 481 |
| 2024 | 18.9% | 487 |
| 2025 | 20.9% | 482 |

## Reading Performance by Income Group

| Year | Low-Income | Non-Low-Income |
| --- | --- | --- |
| 2023 | 65.2% | 67.0% |
| 2024 | 55.5% | 66.9% |
| 2025 | 51.5% | 60.0% |

## Math Performance by Income Group

| Year | Low-Income | Non-Low-Income |
| --- | --- | --- |
| 2023 | 24.4% | 28.0% |
| 2024 | 16.9% | 25.0% |
| 2025 | 18.8% | 27.2% |

## Reading Performance by English Learner Status

| Year | English Learners | English Native |
| --- | --- | --- |
| 2023 | 11.9% | 69.4% |
| 2024 | 2.8% | 60.2% |
| 2025 | 13.0% | 53.1% |

## Math Performance by English Learner Status

| Year | English Learners | English Native |
| --- | --- | --- |
| 2023 | 7.3% | 25.4% |
| 2024 | 2.8% | 19.4% |
| 2025 | 6.5% | 17.1% |

## Reading Performance by Race and Ethnicity

| Group | Proficient % | Tested Students |
| --- | --- | --- |
| Hispanic or Latino | 58.1% | 322 |
| Black or African American | 32.3% | 62 |
| Asian | 50.0% | 40 |
| White | 66.7% | 30 |
| Two or more races | 44.4% | 18 |

## Math Performance by Race and Ethnicity

| Group | Proficient % | Tested Students |
| --- | --- | --- |
| Hispanic or Latino | 19.9% | 322 |
| Black or African American | 11.3% | 62 |
| Asian | 35.0% | 40 |
| White | 40.0% | 30 |
| Two or more races | 5.6% | 18 |

## Reading Score Distribution by Grade

| Grade | Tested Students | Not Met | Nearly Met | Met | Exceeded |
| --- | --- | --- | --- | --- | --- |
| 11 | 482 | 18.9% | 27.4% | 30.7% | 23.0% |

## Math Score Distribution by Grade

| Grade | Tested Students | Not Met | Nearly Met | Met | Exceeded |
| --- | --- | --- | --- | --- | --- |
| 11 | 482 | 51.7% | 27.4% | 12.4% | 8.5% |