Dardenne Elem. vs Ostmann Elem.
A head-to-head comparison of two elementary schools in Missouri, United States, 1.9 km apart, using official American 2025 data. The better value in each row is highlighted.
Dardenne Elem.
O'fallon · Public elementary · Grades K–5
445 students
Ostmann Elem.
O'fallon · Public elementary · Grades K–5
362 students
| Measure | Dardenne Elem. O'fallon, Missouri | Ostmann Elem. O'fallon, Missouri |
|---|---|---|
| Success Index (US) | 60 Top 50% | 85 Top 5% |
| State rank | #435 of 1,159 | #25 of 1,159 |
| National rank | #18169 of 50,301 | #2417 of 50,301 |
| Sector | Public | Public |
| Type | Elementary | Elementary |
| Year range | Grades K–5 | Grades K–5 |
| Students | 445 | 362 |
| Enrollment | 445 | 362 |
| Free/reduced-price lunch | 46.1% | 8.6% |
| Students per teacher | 11.7 | 12.5 |
| Reading proficiency | 53% | 72% |
| Math proficiency | 45% | 66% |
| city | O'fallon | O'fallon |
| state | Missouri | Missouri |
| Website | – | – |
The verdict
- •Ostmann Elem. scores higher on the Success Index (US) (85.1 vs 60.0).
- •Ostmann Elem. does better on math proficiency (66% vs 45%).
- •Ostmann Elem. does better on reading proficiency (72% vs 53%).
- •Ostmann Elem. does better on community advantage (fewer free/reduced-price lunch) (8.6% vs 46.1%).
- •Dardenne Elem. does better on students per teacher (11.7 vs 12.5).
- •Dardenne Elem. is the larger school with 445 students compared with 362.
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 Dardenne Elem. better than Ostmann Elem.?
On the Success Index (US), Ostmann Elem. ranks higher (85.1 vs 60.0 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 Dardenne Elem. and Ostmann Elem.?
About 1.9 km in a straight line, between O'fallon and O'fallon in Missouri.
Which has the better Enrollment?
Dardenne Elem.: 445. Ostmann Elem.: 362. Students enrolled in the latest NCES directory year.
How do Dardenne Elem. and Ostmann Elem. rank in Missouri?
Dardenne Elem. is 435th of 1,159 and Ostmann Elem. is 25th of 1,159 among elementary schools in Missouri on the 2025 Success Index (US).