Chaparral Middle vs Diamond Bar High
A head-to-head comparison of two schools in California, United States, 2.4 km apart, using official American 2025 data. The better value in each row is highlighted.
Chaparral Middle
Diamond Bar · Public middle · Grades 6–8
1,349 students
Diamond Bar High
Diamond Bar · Public high · Grades 9–12
2,563 students
| Measure | Chaparral Middle Diamond Bar, California | Diamond Bar High Diamond Bar, California |
|---|---|---|
| Success Index (US) | 78 Top 25% | 74 Top 25% |
| State rank | #105 of 1,334 | #61 of 1,343 |
| National rank | #1906 of 15,369 | #2274 of 16,910 |
| Sector | Public | Public |
| Type | Middle | High |
| Year range | Grades 6–8 | Grades 9–12 |
| Students | 1,349 | 2,563 |
| Enrollment | 1,349 | 2,563 |
| Free/reduced-price lunch | 24.6% | 22.6% |
| Students per teacher | 28.7 | 26.2 |
| Reading proficiency | 77% | 80% |
| Math proficiency | 77% | 73% |
| city | Diamond Bar | Diamond Bar |
| state | California | California |
| Website | – | – |
The verdict
- •Chaparral Middle scores higher on the Success Index (US) (77.5 vs 74.3).
- •Chaparral Middle does better on math proficiency (77% vs 73%).
- •Diamond Bar High does better on reading proficiency (80% vs 77%).
- •Diamond Bar High does better on community advantage (fewer free/reduced-price lunch) (22.6% vs 24.6%).
- •Diamond Bar High does better on students per teacher (26.2 vs 28.7).
- •Diamond Bar High is the larger school with 2,563 students compared with 1,349.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Chaparral Middle better than Diamond Bar High?
On the Success Index (US), Chaparral Middle ranks higher (77.5 vs 74.3 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Chaparral Middle and Diamond Bar High?
About 2.4 km in a straight line, between Diamond Bar and Diamond Bar in California.
Which has the better Enrollment?
Chaparral Middle: 1,349. Diamond Bar High: 2,563. Students enrolled in the latest NCES directory year.
How do Chaparral Middle and Diamond Bar High rank in California?
Chaparral Middle is 105th of 1,334 and Diamond Bar High is 61st of 1,343 among middle schools in California on the 2025 Success Index (US).