Colony High vs Grace Yokley Junior High
A head-to-head comparison of two schools in California, United States, 1.5 km apart, using official American 2025 data. The better value in each row is highlighted.
Colony High
Ontario · Public high · Grades 9–12
2,109 students
Grace Yokley Junior High
Ontario · Public middle · Grades 7–8
606 students
| Measure | Colony High Ontario, California | Grace Yokley Junior High Ontario, California |
|---|---|---|
| Success Index (US) | 39 Lower 50% | 39 Lower 50% |
| State rank | #612 of 1,343 | #580 of 1,334 |
| National rank | #11263 of 16,910 | #10087 of 15,369 |
| Sector | Public | Public |
| Type | High | Middle |
| Year range | Grades 9–12 | Grades 7–8 |
| Students | 2,109 | 606 |
| Enrollment | 2,109 | 606 |
| Free/reduced-price lunch | 69.7% | 66% |
| Students per teacher | 26.0 | 21.6 |
| Reading proficiency | 60% | 55% |
| Math proficiency | 35% | 33% |
| city | Ontario | Ontario |
| state | California | California |
| Website | – | – |
The verdict
- •Both schools have almost identical Success Index (US) scores (38.7 vs 38.8).
- •Colony High does better on math proficiency (35% vs 33%).
- •Colony High does better on reading proficiency (60% vs 55%).
- •Grace Yokley Junior High does better on community advantage (fewer free/reduced-price lunch) (66% vs 69.7%).
- •Grace Yokley Junior High does better on students per teacher (21.6 vs 26.0).
- •Colony High is the larger school with 2,109 students compared with 606.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
Free academic assessment
Torn between two schools? Start with your child.
Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Frequently asked questions
Is Colony High better than Grace Yokley Junior High?
The two schools are very close on the Success Index (US). Differences in sector, size, programmes and distance from home will matter more than the score.
How far apart are Colony High and Grace Yokley Junior High?
About 1.5 km in a straight line, between Ontario and Ontario in California.
Which has the better Enrollment?
Colony High: 2,109. Grace Yokley Junior High: 606. Students enrolled in the latest NCES directory year.
How do Colony High and Grace Yokley Junior High rank in California?
Colony High is 612th of 1,343 and Grace Yokley Junior High is 580th of 1,334 among high schools in California on the 2025 Success Index (US).