Kellar School vs Posen Elem School
A head-to-head comparison of two schools in Illinois, United States, 1.5 km apart, using official American 2025 data. The better value in each row is highlighted.
Kellar School
Robbins · Public middle · Grades 6–8
431 students
Posen Elem School
Posen · Public elementary · Grades 4–5
246 students
| Measure | Kellar School Robbins, Illinois | Posen Elem School Posen, Illinois |
|---|---|---|
| Success Index (US) | 13 Lower 50% | 17 Lower 50% |
| State rank | #647 of 670 | #1985 of 2,303 |
| National rank | #14831 of 15,369 | #46393 of 50,301 |
| Sector | Public | Public |
| Type | Middle | Elementary |
| Year range | Grades 6–8 | Grades 4–5 |
| Students | 431 | 246 |
| Enrollment | 431 | 246 |
| Free/reduced-price lunch | 75.4% | 91.5% |
| Students per teacher | 18.7 | 13.7 |
| Reading proficiency | 21% | 23% |
| Math proficiency | 10% | 16% |
| city | Robbins | Posen |
| state | Illinois | Illinois |
| Website | – | – |
The verdict
- •Posen Elem School scores higher on the Success Index (US) (17.4 vs 12.8).
- •Posen Elem School does better on math proficiency (16% vs 10%).
- •Posen Elem School does better on reading proficiency (23% vs 21%).
- •Kellar School does better on community advantage (fewer free/reduced-price lunch) (75.4% vs 91.5%).
- •Posen Elem School does better on students per teacher (13.7 vs 18.7).
- •Kellar School is the larger school with 431 students compared with 246.
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 Kellar School better than Posen Elem School?
On the Success Index (US), Posen Elem School ranks higher (17.4 vs 12.8 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 Kellar School and Posen Elem School?
About 1.5 km in a straight line, between Robbins and Posen in Illinois.
Which has the better Enrollment?
Kellar School: 431. Posen Elem School: 246. Students enrolled in the latest NCES directory year.
How do Kellar School and Posen Elem School rank in Illinois?
Kellar School is 647th of 670 and Posen Elem School is 1985th of 2,303 among middle schools in Illinois on the 2025 Success Index (US).