Challenge Center - 51 vs Robert Frost Elementary - 18
A head-to-head comparison of two elementary schools in South Dakota, United States, 0 m apart, using official American 2025 data. The better value in each row is highlighted.
Challenge Center - 51
Sioux Falls · Public elementary · Grades 2–5
165 students
Robert Frost Elementary - 18
Sioux Falls · Public elementary · Grades PK–5
447 students
| Measure | Challenge Center - 51 Sioux Falls, South Dakota | Robert Frost Elementary - 18 Sioux Falls, South Dakota |
|---|---|---|
| Success Index (US) | 91 Top 5% | 52 Top 50% |
| State rank | #4 of 226 | #156 of 226 |
| National rank | #682 of 50,301 | #23706 of 50,301 |
| Sector | Public | Public |
| Type | Elementary | Elementary |
| Year range | Grades 2–5 | Grades PK–5 |
| Students | 165 | 447 |
| Enrollment | 165 | 447 |
| Free/reduced-price lunch | 15.8% | 42.1% |
| Students per teacher | 15.0 | 17.2 |
| Reading proficiency | 97.5% | 54% |
| Math proficiency | 97.5% | 43% |
| city | Sioux Falls | Sioux Falls |
| state | South Dakota | South Dakota |
| Website | – | – |
The verdict
- •Challenge Center - 51 scores higher on the Success Index (US) (90.5 vs 52.1).
- •Challenge Center - 51 does better on math proficiency (97.5% vs 43%).
- •Challenge Center - 51 does better on reading proficiency (97.5% vs 54%).
- •Challenge Center - 51 does better on community advantage (fewer free/reduced-price lunch) (15.8% vs 42.1%).
- •Challenge Center - 51 does better on students per teacher (15.0 vs 17.2).
- •Robert Frost Elementary - 18 is the larger school with 447 students compared with 165.
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 Challenge Center - 51 better than Robert Frost Elementary - 18?
On the Success Index (US), Challenge Center - 51 ranks higher (90.5 vs 52.1 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 Challenge Center - 51 and Robert Frost Elementary - 18?
About 0 m in a straight line, between Sioux Falls and Sioux Falls in South Dakota.
Which has the better Enrollment?
Challenge Center - 51: 165. Robert Frost Elementary - 18: 447. Students enrolled in the latest NCES directory year.
How do Challenge Center - 51 and Robert Frost Elementary - 18 rank in South Dakota?
Challenge Center - 51 is 4th of 226 and Robert Frost Elementary - 18 is 156th of 226 among elementary schools in South Dakota on the 2025 Success Index (US).