Centennial Middle School vs Rockwood Preparatory Academy
A head-to-head comparison of two schools in Oregon, United States, 1.8 km apart, using official American 2025 data. The better value in each row is highlighted.
Centennial Middle School
Portland · Public middle · Grades 6–8
876 students
Rockwood Preparatory Academy
Portland · Charter elementary · Grades K–5
397 students
| Measure | Centennial Middle School Portland, Oregon | Rockwood Preparatory Academy Portland, Oregon |
|---|---|---|
| Success Index (US) | 29 Lower 50% | 20 Lower 50% |
| State rank | #160 of 208 | #601 of 678 |
| National rank | #12157 of 15,369 | #44996 of 50,301 |
| Sector | Public | Charter |
| Type | Middle | Elementary |
| Year range | Grades 6–8 | Grades K–5 |
| Students | 876 | 397 |
| Enrollment | 876 | 397 |
| Free/reduced-price lunch | 102.2% | 100% |
| Students per teacher | 20.4 | 20.9 |
| Reading proficiency | 48% | 47% |
| Math proficiency | 37% | 22% |
| city | Portland | Portland |
| state | Oregon | Oregon |
| Website | – | – |
The verdict
- •Centennial Middle School scores higher on the Success Index (US) (28.7 vs 19.8).
- •Centennial Middle School does better on math proficiency (37% vs 22%).
- •Centennial Middle School does better on reading proficiency (48% vs 47%).
- •Rockwood Preparatory Academy does better on community advantage (fewer free/reduced-price lunch) (100% vs 102.2%).
- •Centennial Middle School does better on students per teacher (20.4 vs 20.9).
- •Centennial Middle School is the larger school with 876 students compared with 397.
- •Centennial Middle School is a public school while Rockwood Preparatory Academy is a charter school, so fees and admission rules differ.
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 Centennial Middle School better than Rockwood Preparatory Academy?
On the Success Index (US), Centennial Middle School ranks higher (28.7 vs 19.8 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 Centennial Middle School and Rockwood Preparatory Academy?
About 1.8 km in a straight line, between Portland and Portland in Oregon.
Which has the better Enrollment?
Centennial Middle School: 876. Rockwood Preparatory Academy: 397. Students enrolled in the latest NCES directory year.
How do Centennial Middle School and Rockwood Preparatory Academy rank in Oregon?
Centennial Middle School is 160th of 208 and Rockwood Preparatory Academy is 601st of 678 among middle schools in Oregon on the 2025 Success Index (US).