Cos Cob School

Grades PK–5 Public District: Greenwich School District

300 East Putnam Ave., Cos Cob, CT 06807 Map

Low income

16%

free or reduced-price lunch

Students

343

2024-25

Students per teacher

10.0

2024-25

Test score trends

Test scores for Connecticut are not available yet — enrollment and demographics are shown below. We are adding states one at a time.

Race and ethnicity, 2024-25

Year-by-year history is loaded from the NCES Common Core of Data (2017-18 onward).


Riverside School Grades K–5 · Greenwich School District	1.1 mi	—	—	—	Not enough years of data	2%	440	White 71%
Julian Curtiss School Grades PK–5 · Greenwich School District	1.2 mi	—	—	—	Not enough years of data	39%	236	White 42%
International School At Dundee Grades K–5 · Greenwich School District	1.4 mi	—	—	—	Not enough years of data	11%	342	White 46%
North Mianus School Grades K–5 · Greenwich School District	1.5 mi	—	—	—	Not enough years of data	3%	423	White 65%
North Street School Grades PK–5 · Greenwich School District	1.7 mi	—	—	—	Not enough years of data	4%	411	White 74%
Old Greenwich School Grades PK–5 · Greenwich School District	1.7 mi	—	—	—	Not enough years of data	2%	385	White 84%
Westover School Grades K–6 · Stamford School District	2.3 mi	—	—	—	Not enough years of data	60%	624	Hispanic 48%
Hamilton Avenue School Grades PK–5 · Greenwich School District	2.7 mi	—	—	—	Not enough years of data	60%	299	Hispanic 56%
Stamford Charter School for Excellence Grades PK–8 Charter · Stamford Charter School for Excellence District	2.8 mi	—	—	—	Not enough years of data	56%	543	Black 40%
Stillmeadow School Grades K–5 · Stamford School District	2.9 mi	—	—	—	Not enough years of data	54%	587	Hispanic 57%