The Biome vs Washington Montessori
A head-to-head comparison of two elementary schools in Missouri, United States, 1.1 km apart, using official American 2025 data. The better value in each row is highlighted.
The Biome
St. Louis · Charter elementary · Grades K–5
167 students
Washington Montessori
ST Louis · Public elementary · Grades PK–5
266 students
| Measure | The Biome St. Louis, Missouri | Washington Montessori ST Louis, Missouri |
|---|---|---|
| Success Index (US) | 21 Lower 50% | 14 Lower 50% |
| State rank | #1029 of 1,159 | #1106 of 1,159 |
| National rank | #44136 of 50,301 | #48190 of 50,301 |
| Sector | Charter | Public |
| Type | Elementary | Elementary |
| Year range | Grades K–5 | Grades PK–5 |
| Students | 167 | 266 |
| Enrollment | 167 | 266 |
| Free/reduced-price lunch | 82.6% | 100% |
| Students per teacher | 7.3 | 11.1 |
| Reading proficiency | 24.5% | 7.5% |
| Math proficiency | 5% | 7.5% |
| city | St. Louis | ST Louis |
| state | Missouri | Missouri |
| Website | – | – |
The verdict
- •The Biome scores higher on the Success Index (US) (21.2 vs 13.8).
- •Washington Montessori does better on math proficiency (7.5% vs 5%).
- •The Biome does better on reading proficiency (24.5% vs 7.5%).
- •The Biome does better on community advantage (fewer free/reduced-price lunch) (82.6% vs 100%).
- •The Biome does better on students per teacher (7.3 vs 11.1).
- •Washington Montessori is the larger school with 266 students compared with 167.
- •The Biome is a charter school while Washington Montessori is a public school, so fees and admission rules differ.
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 The Biome better than Washington Montessori?
On the Success Index (US), The Biome ranks higher (21.2 vs 13.8 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 The Biome and Washington Montessori?
About 1.1 km in a straight line, between St. Louis and ST Louis in Missouri.
Which has the better Enrollment?
The Biome: 167. Washington Montessori: 266. Students enrolled in the latest NCES directory year.
How do The Biome and Washington Montessori rank in Missouri?
The Biome is 1029th of 1,159 and Washington Montessori is 1106th of 1,159 among elementary schools in Missouri on the 2025 Success Index (US).