Black Diamond Elementary vs Rock Creek Elementary
A head-to-head comparison of two elementary schools in Washington, United States, 7.0 km apart, using official American 2025 data. The better value in each row is highlighted.
Black Diamond Elementary
Black Diamond · Public elementary · Grades K–5
414 students
Rock Creek Elementary
Maple Valley · Public elementary · Grades PK–5
686 students
| Measure | Black Diamond Elementary Black Diamond, Washington | Rock Creek Elementary Maple Valley, Washington |
|---|---|---|
| Success Index (US) | 63 Top 50% | 81 Top 10% |
| State rank | #456 of 1,154 | #126 of 1,154 |
| National rank | #16021 of 50,301 | #4676 of 50,301 |
| Sector | Public | Public |
| Type | Elementary | Elementary |
| Year range | Grades K–5 | Grades PK–5 |
| Students | 414 | 686 |
| Enrollment | 414 | 686 |
| Free/reduced-price lunch | 34.3% | 17.1% |
| Students per teacher | 16.6 | 17.2 |
| Reading proficiency | 62% | 77% |
| Math proficiency | 52% | 73% |
| city | Black Diamond | Maple Valley |
| state | Washington | Washington |
| Website | – | – |
The verdict
- •Rock Creek Elementary scores higher on the Success Index (US) (80.6 vs 63.1).
- •Rock Creek Elementary does better on math proficiency (73% vs 52%).
- •Rock Creek Elementary does better on reading proficiency (77% vs 62%).
- •Rock Creek Elementary does better on community advantage (fewer free/reduced-price lunch) (17.1% vs 34.3%).
- •Black Diamond Elementary does better on students per teacher (16.6 vs 17.2).
- •Rock Creek Elementary is the larger school with 686 students compared with 414.
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 Black Diamond Elementary better than Rock Creek Elementary?
On the Success Index (US), Rock Creek Elementary ranks higher (80.6 vs 63.1 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 Black Diamond Elementary and Rock Creek Elementary?
About 7.0 km in a straight line, between Black Diamond and Maple Valley in Washington.
Which has the better Enrollment?
Black Diamond Elementary: 414. Rock Creek Elementary: 686. Students enrolled in the latest NCES directory year.
How do Black Diamond Elementary and Rock Creek Elementary rank in Washington?
Black Diamond Elementary is 456th of 1,154 and Rock Creek Elementary is 126th of 1,154 among elementary schools in Washington on the 2025 Success Index (US).