Sumner High vs Washington Montessori
A head-to-head comparison of two schools in Missouri, United States, 1.8 km apart, using official American 2025 data. The better value in each row is highlighted.
Sumner High
ST Louis · Public high · Grades 9–12
407 students
Washington Montessori
ST Louis · Public elementary · Grades PK–5
266 students
| Measure | Sumner High ST Louis, Missouri | Washington Montessori ST Louis, Missouri |
|---|---|---|
| Success Index (US) | 12 Lower 50% | 14 Lower 50% |
| State rank | #490 of 497 | #1106 of 1,159 |
| National rank | #16409 of 16,910 | #48190 of 50,301 |
| Sector | Public | Public |
| Type | High | Elementary |
| Year range | Grades 9–12 | Grades PK–5 |
| Students | 407 | 266 |
| Enrollment | 407 | 266 |
| Free/reduced-price lunch | 100% | 100% |
| Students per teacher | 12.7 | 11.1 |
| Reading proficiency | 15% | 7.5% |
| Math proficiency | 2.5% | 7.5% |
| city | ST Louis | ST Louis |
| state | Missouri | Missouri |
| Website | – | – |
The verdict
- •Washington Montessori scores higher on the Success Index (US) (13.8 vs 12.4).
- •Washington Montessori does better on math proficiency (7.5% vs 2.5%).
- •Sumner High does better on reading proficiency (15% vs 7.5%).
- •Washington Montessori does better on students per teacher (11.1 vs 12.7).
- •Sumner High is the larger school with 407 students compared with 266.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
Free academic assessment
Torn between two schools? Start with your child.
Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Frequently asked questions
Is Sumner High better than Washington Montessori?
On the Success Index (US), Washington Montessori ranks higher (13.8 vs 12.4 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 Sumner High and Washington Montessori?
About 1.8 km in a straight line, between ST Louis and ST Louis in Missouri.
Which has the better Enrollment?
Sumner High: 407. Washington Montessori: 266. Students enrolled in the latest NCES directory year.
How do Sumner High and Washington Montessori rank in Missouri?
Sumner High is 490th of 497 and Washington Montessori is 1106th of 1,159 among high schools in Missouri on the 2025 Success Index (US).