Carnahan Middle vs Diamond Middle
A head-to-head comparison of two middle schools in Missouri, United States, 400 km apart, using official American 2025 data. The better value in each row is highlighted.
Carnahan Middle
St.louis · Public middle · Grades 6–8
214 students
Diamond Middle
Diamond · Public middle · Grades 5–8
212 students
| Measure | Carnahan Middle St.louis, Missouri | Diamond Middle Diamond, Missouri |
|---|---|---|
| Success Index (US) | 33 Lower 50% | 47 Lower 50% |
| State rank | #318 of 392 | #215 of 392 |
| National rank | #11268 of 15,369 | #8271 of 15,369 |
| Sector | Public | Public |
| Type | Middle | Middle |
| Year range | Grades 6–8 | Grades 5–8 |
| Students | 214 | 212 |
| Enrollment | 214 | 212 |
| Free/reduced-price lunch | 98.6% | 50.5% |
| Students per teacher | 11.3 | 16.3 |
| Reading proficiency | – | 45% |
| Math proficiency | – | 41% |
| city | St.louis | Diamond |
| state | Missouri | Missouri |
| Website | – | – |
The verdict
- •Diamond Middle scores higher on the Success Index (US) (47.1 vs 33.1).
- •Diamond Middle does better on community advantage (fewer free/reduced-price lunch) (50.5% vs 98.6%).
- •Carnahan Middle does better on students per teacher (11.3 vs 16.3).
- •Carnahan Middle is the larger school with 214 students compared with 212.
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 Carnahan Middle better than Diamond Middle?
On the Success Index (US), Diamond Middle ranks higher (47.1 vs 33.1 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 Carnahan Middle and Diamond Middle?
About 400 km in a straight line, between St.louis and Diamond in Missouri.
Which has the better Enrollment?
Carnahan Middle: 214. Diamond Middle: 212. Students enrolled in the latest NCES directory year.
How do Carnahan Middle and Diamond Middle rank in Missouri?
Carnahan Middle is 318th of 392 and Diamond Middle is 215th of 392 among middle schools in Missouri on the 2025 Success Index (US).