Cos Cob School vs Old Greenwich School
Old Greenwich School has a higher overall rating of 9.6/10 compared to 7.8/10. In math proficiency, Old Greenwich School leads at 86.0%.
Attendance data is under correction. A public school's existing Resources & Environment score and overall rating shown here may still reflect an unverified attendance input.
Cos Cob School
Cos Cob, CT
7.8/10
Elementary SchoolKindergarten – 5th
340 students
Old Greenwich School
Old Greenwich, CT
9.6/10
Elementary SchoolPre-K – 5th
406 students
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| Metric | Cos Cob School | Old Greenwich School |
|---|---|---|
| Overall Rating | 7.8 / 10 | 9.6 / 10 |
| Academic Score | 6.9 | 9.6 |
| Growth Score | 7.5 | 9.4 |
| Diversity Index | — | — |
| Free/Reduced Lunch | 14.1% | 1.5% |
| Environment Score | 9.7 | 10.0 |
| State Rank | #207 of 992 | #7 of 992 |
| State Percentile | 79th | 99th |
Test Scores
| Subject | Cos Cob School | Old Greenwich School |
|---|---|---|
| Math Proficiency | 74.0% | 86.0% |
| Math (State Avg) | — | — |
| ELA Proficiency | 72.0% | 87.0% |
| ELA (State Avg) | — | — |
School Details
| Detail | Cos Cob School | Old Greenwich School |
|---|---|---|
| Type | Elementary School | Elementary School |
| Grades | Kindergarten – 5th | Pre-K – 5th |
| Enrollment | 340 | 406 |
| Student-Teacher Ratio | 9.7:1 | 11.3:1 |
| Free/Reduced Lunch | 14.1% | 1.5% |
| District | Greenwich School District | Greenwich School District |
| City | Cos Cob | Old Greenwich |
Neighborhood
| Metric | Cos Cob (06807) | Old Greenwich (06870) |
|---|---|---|
| Median Household Income | $194,492 | $227,727 |
| Median Home Value | $1,228,000 | $1,579,200 |
| Median Rent | $2,622 | $3,501 |
| College Educated (Bachelor's+) | 72.9% | 83.3% |
| Poverty Rate | 5.6% | 3.2% |
| Avg Commute | 29 min | 34 min |