Common Ground High School vs Elm City Montessori School
A head-to-head comparison of two schools in Connecticut, United States, 1.1 km apart, using official American 2025 data. The better value in each row is highlighted.
Common Ground High School
New Haven · Charter high · Grades 9–12
221 students
Elm City Montessori School
New Haven · Charter elementary · Grades PK–8
312 students
| Measure | Common Ground High School New Haven, Connecticut | Elm City Montessori School New Haven, Connecticut |
|---|---|---|
| Success Index (US) | 24 Lower 50% | 35 Lower 50% |
| State rank | #160 of 180 | #488 of 596 |
| National rank | #14564 of 16,910 | #35570 of 50,301 |
| Sector | Charter | Charter |
| Type | High | Elementary |
| Year range | Grades 9–12 | Grades PK–8 |
| Students | 221 | 312 |
| Enrollment | 221 | 312 |
| Free/reduced-price lunch | 64.3% | 43.9% |
| Students per teacher | 10.0 | 15.6 |
| Reading proficiency | 24.5% | 34.5% |
| Math proficiency | 5% | 24.5% |
| city | New Haven | New Haven |
| state | Connecticut | Connecticut |
| Website | – | – |
The verdict
- •Elm City Montessori School scores higher on the Success Index (US) (34.5 vs 24.0).
- •Elm City Montessori School does better on math proficiency (24.5% vs 5%).
- •Elm City Montessori School does better on reading proficiency (34.5% vs 24.5%).
- •Elm City Montessori School does better on community advantage (fewer free/reduced-price lunch) (43.9% vs 64.3%).
- •Common Ground High School does better on students per teacher (10.0 vs 15.6).
- •Elm City Montessori School is the larger school with 312 students compared with 221.
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 Common Ground High School better than Elm City Montessori School?
On the Success Index (US), Elm City Montessori School ranks higher (34.5 vs 24.0 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 Common Ground High School and Elm City Montessori School?
About 1.1 km in a straight line, between New Haven and New Haven in Connecticut.
Which has the better Enrollment?
Common Ground High School: 221. Elm City Montessori School: 312. Students enrolled in the latest NCES directory year.
How do Common Ground High School and Elm City Montessori School rank in Connecticut?
Common Ground High School is 160th of 180 and Elm City Montessori School is 488th of 596 among high schools in Connecticut on the 2025 Success Index (US).