Challenge Center - 51 vs Harrisburg East Middle School - 11
A head-to-head comparison of two schools in South Dakota, United States, 4.3 km 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
Harrisburg East Middle School - 11
Sioux Falls · Public middle · Grades 6–8
428 students
| Measure | Challenge Center - 51 Sioux Falls, South Dakota | Harrisburg East Middle School - 11 Sioux Falls, South Dakota |
|---|---|---|
| Success Index (US) | 91 Top 5% | 85 Top 5% |
| State rank | #4 of 226 | #1 of 102 |
| National rank | #682 of 50,301 | #718 of 15,369 |
| Sector | Public | Public |
| Type | Elementary | Middle |
| Year range | Grades 2–5 | Grades 6–8 |
| Students | 165 | 428 |
| Enrollment | 165 | 428 |
| Free/reduced-price lunch | 15.8% | 20.6% |
| Students per teacher | 15.0 | 12.2 |
| Reading proficiency | 97.5% | – |
| Math proficiency | 97.5% | – |
| 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 85.3).
- •Challenge Center - 51 does better on community advantage (fewer free/reduced-price lunch) (15.8% vs 20.6%).
- •Harrisburg East Middle School - 11 does better on students per teacher (12.2 vs 15.0).
- •Harrisburg East Middle School - 11 is the larger school with 428 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 Harrisburg East Middle School - 11?
On the Success Index (US), Challenge Center - 51 ranks higher (90.5 vs 85.3 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 Challenge Center - 51 and Harrisburg East Middle School - 11?
About 4.3 km in a straight line, between Sioux Falls and Sioux Falls in South Dakota.
Which has the better Enrollment?
Challenge Center - 51: 165. Harrisburg East Middle School - 11: 428. Students enrolled in the latest NCES directory year.
How do Challenge Center - 51 and Harrisburg East Middle School - 11 rank in South Dakota?
Challenge Center - 51 is 4th of 226 and Harrisburg East Middle School - 11 is 1st of 102 among elementary schools in South Dakota on the 2025 Success Index (US).