Old Greenwich School vs Cos Cob School
Old Greenwich School has a higher overall rating of 9.5/10 compared to 8.4/10. In math proficiency, Old Greenwich School leads at 98.0%.
Old Greenwich School
Old Greenwich, CT
9.5/10
Elementary SchoolPre-K – 5th
406 students
Cos Cob School
Cos Cob, CT
8.4/10
Elementary SchoolKindergarten – 5th
340 students
Ratings Comparison
| Metric | Old Greenwich School | Cos Cob School |
|---|---|---|
| Overall Rating | 9.5 / 10 | 8.4 / 10 |
| Academic Score | 9.3 | 7.2 |
| Growth Score | 9.5 | 8.7 |
| Diversity Index | — | — |
| Free/Reduced Lunch | 1.5% | 14.1% |
| Environment Score | 10.0 | 9.7 |
| State Rank | #19 of 990 | #160 of 990 |
| State Percentile | 98th | 84th |
Test Scores
| Subject | Old Greenwich School | Cos Cob School |
|---|---|---|
| Math Proficiency | 98.0% | 88.0% |
| Math (State Avg) | — | — |
| ELA Proficiency | 92.0% | 84.0% |
| ELA (State Avg) | — | — |
School Details
| Detail | Old Greenwich School | Cos Cob School |
|---|---|---|
| Type | Elementary School | Elementary School |
| Grades | Pre-K – 5th | Kindergarten – 5th |
| Enrollment | 406 | 340 |
| Student-Teacher Ratio | 11.3:1 | 9.7:1 |
| Free/Reduced Lunch | 1.5% | 14.1% |
| Chronic Absenteeism (SY 2022-23) | — | 10.9% |
| District | Greenwich School District | Greenwich School District |
| City | Old Greenwich | Cos Cob |
Neighborhood
| Metric | Old Greenwich (06870) | Cos Cob (06807) |
|---|---|---|
| Median Household Income | $227,727 | $194,492 |
| Median Home Value | $1,579,200 | $1,228,000 |
| Median Rent | $3,501 | $2,622 |
| College Educated (Bachelor's+) | 83.3% | 72.9% |
| Poverty Rate | 3.2% | 5.6% |
| Avg Commute | 34 min | 29 min |