East Cooper Montessori Charter vs Sullivan's Island Elementary
A head-to-head comparison of two elementary schools in South Carolina, United States, 4.4 km apart, using official American 2025 data. The better value in each row is highlighted.
East Cooper Montessori Charter
Mt. Pleasant · Charter elementary · Grades PK–8
433 students
Sullivan's Island Elementary
Sullivan's Island · Public elementary · Grades PK–5
497 students
| Measure | East Cooper Montessori Charter Mt. Pleasant, South Carolina | Sullivan's Island Elementary Sullivan's Island, South Carolina |
|---|---|---|
| Success Index (US) | 82 Top 10% | 83 Top 10% |
| State rank | #40 of 688 | #32 of 688 |
| National rank | #3940 of 50,301 | #3444 of 50,301 |
| Sector | Charter | Public |
| Type | Elementary | Elementary |
| Year range | Grades PK–8 | Grades PK–5 |
| Students | 433 | 497 |
| Enrollment | 433 | 497 |
| Free/reduced-price lunch | – | – |
| Students per teacher | 14.4 | 14.2 |
| Reading proficiency | 79% | 75% |
| Math proficiency | 71% | 76% |
| city | Mt. Pleasant | Sullivan's Island |
| state | South Carolina | South Carolina |
| Website | – | – |
The verdict
- •Sullivan's Island Elementary scores higher on the Success Index (US) (82.9 vs 81.9).
- •Sullivan's Island Elementary does better on math proficiency (76% vs 71%).
- •East Cooper Montessori Charter does better on reading proficiency (79% vs 75%).
- •Sullivan's Island Elementary does better on students per teacher (14.2 vs 14.4).
- •Sullivan's Island Elementary is the larger school with 497 students compared with 433.
- •East Cooper Montessori Charter is a charter school while Sullivan's Island Elementary 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.
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 East Cooper Montessori Charter better than Sullivan's Island Elementary?
On the Success Index (US), Sullivan's Island Elementary ranks higher (82.9 vs 81.9 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 East Cooper Montessori Charter and Sullivan's Island Elementary?
About 4.4 km in a straight line, between Mt. Pleasant and Sullivan's Island in South Carolina.
Which has the better Enrollment?
East Cooper Montessori Charter: 433. Sullivan's Island Elementary: 497. Students enrolled in the latest NCES directory year.
How do East Cooper Montessori Charter and Sullivan's Island Elementary rank in South Carolina?
East Cooper Montessori Charter is 40th of 688 and Sullivan's Island Elementary is 32nd of 688 among elementary schools in South Carolina on the 2025 Success Index (US).