Congress Elementary School vs Mary C O'Brien Elementary School
A head-to-head comparison of two elementary schools in Arizona, United States, 186 km apart, using official American 2025 data. The better value in each row is highlighted.
Congress Elementary School
Congress · Public elementary · Grades PK–8
122 students
Mary C O'Brien Elementary School
Casa Grande · Public elementary · Grades K–6
123 students
| Measure | Congress Elementary School Congress, Arizona | Mary C O'Brien Elementary School Casa Grande, Arizona |
|---|---|---|
| Success Index (US) | 68 Top 25% | 88 Top 5% |
| State rank | #213 of 1,136 | #14 of 1,136 |
| National rank | #12486 of 50,301 | #1330 of 50,301 |
| Sector | Public | Public |
| Type | Elementary | Elementary |
| Year range | Grades PK–8 | Grades K–6 |
| Students | 122 | 123 |
| Enrollment | 122 | 123 |
| Free/reduced-price lunch | – | – |
| Students per teacher | 11.1 | 10.3 |
| Reading proficiency | 57% | 77% |
| Math proficiency | 62% | 82% |
| city | Congress | Casa Grande |
| state | Arizona | Arizona |
| Website | – | – |
The verdict
- •Mary C O'Brien Elementary School scores higher on the Success Index (US) (87.9 vs 68.3).
- •Mary C O'Brien Elementary School does better on math proficiency (82% vs 62%).
- •Mary C O'Brien Elementary School does better on reading proficiency (77% vs 57%).
- •Mary C O'Brien Elementary School does better on students per teacher (10.3 vs 11.1).
- •Mary C O'Brien Elementary School is the larger school with 123 students compared with 122.
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 Congress Elementary School better than Mary C O'Brien Elementary School?
On the Success Index (US), Mary C O'Brien Elementary School ranks higher (87.9 vs 68.3 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 Congress Elementary School and Mary C O'Brien Elementary School?
About 186 km in a straight line, between Congress and Casa Grande in Arizona.
Which has the better Enrollment?
Congress Elementary School: 122. Mary C O'Brien Elementary School: 123. Students enrolled in the latest NCES directory year.
How do Congress Elementary School and Mary C O'Brien Elementary School rank in Arizona?
Congress Elementary School is 213th of 1,136 and Mary C O'Brien Elementary School is 14th of 1,136 among elementary schools in Arizona on the 2025 Success Index (US).