Cos Cob School (Greenwich School District SCH DIST.), Connecticut - School Profile in 2023-2024 School Year
Updated on August 8, 2025.
Cos Cob School is a Elementary in Cos Cob, CT. It currently serves 340 students (grades KG-05). The school is part of the Greenwich School District School District.
Below, we provide details about the school including the population per grade, the racial demography of the student population, the racial demography of the student population per gender/sex, and the racial demography per grade level.
You can see similar information for other schools in Greenwich School District School District and all schools in Connecticut.
Other Details
School Type: Regular School
School Level: Elementary
Number of Students:340
Number of Teachers: 36
Student/Teacher Ratio: 9.47
Location Info
Location: 300 East Putnam Ave., Cos Cob, CT 06807
Mailing Address: 300 East Putnam Ave., Cos Cob, CT 06807
Phone: (203)869-4670
Data Source: NCES.
Student Population Per Grade
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| Grade | Population |
|---|---|
| Grade 1 | 60 |
| Grade 2 | 56 |
| Grade 3 | 47 |
| Grade 4 | 53 |
| Grade 5 | 71 |
| Kindergarten | 53 |
Gender/Sex of Cos Cob School Student Population
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| Gender | Population | Percent of Population (%) |
|---|---|---|
| Male | 174 | 51.18 |
| Female | 166 | 48.82 |
Race/Ethnicity Demography of Cos Cob School Student Population
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| American Indian or Alaska Native | 1 | 0.29 |
| Asian | 32 | 9.41 |
| Black or African American | 5 | 1.47 |
| Hispanic/Latino | 63 | 18.53 |
| Two or more races | 26 | 7.65 |
| White | 213 | 62.65 |
Male - Race/Ethnicity Demography of Student Population
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| American Indian or Alaska Native | 1 | 0.57 |
| Asian | 17 | 9.77 |
| Black or African American | 4 | 2.30 |
| Hispanic/Latino | 29 | 16.67 |
| Two or more races | 16 | 9.20 |
| White | 107 | 61.49 |
Female - Race/Ethnicity Demography of Student Population
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| Asian | 15 | 9.04 |
| Black or African American | 1 | 0.60 |
| Hispanic/Latino | 34 | 20.48 |
| Two or more races | 10 | 6.02 |
| White | 106 | 63.86 |
Race Demography Per Grade
The tables below shows the Race/Ethnicity of the student population per grade.Grade 1 - Race/Ethnicity of Both Genders
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| Asian | 3 | 5.00 |
| Black or African American | 1 | 1.67 |
| Hispanic/Latino | 12 | 20.00 |
| Two or more races | 2 | 3.33 |
| White | 42 | 70.00 |
Grade 2 - Race/Ethnicity of Both Genders
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| Asian | 6 | 10.71 |
| Hispanic/Latino | 16 | 28.57 |
| Two or more races | 5 | 8.93 |
| White | 29 | 51.79 |
Grade 3 - Race/Ethnicity of Both Genders
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| Asian | 4 | 8.51 |
| Black or African American | 1 | 2.13 |
| Hispanic/Latino | 4 | 8.51 |
| Two or more races | 4 | 8.51 |
| White | 34 | 72.34 |
Grade 4 - Race/Ethnicity of Both Genders
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| Asian | 4 | 7.55 |
| Black or African American | 2 | 3.77 |
| Hispanic/Latino | 6 | 11.32 |
| Two or more races | 4 | 7.55 |
| White | 37 | 69.81 |
Grade 5 - Race/Ethnicity of Both Genders
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| Asian | 8 | 11.27 |
| Hispanic/Latino | 15 | 21.13 |
| Two or more races | 9 | 12.68 |
| White | 39 | 54.93 |
Kindergarten - Race/Ethnicity of Both Genders
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| Race/Ethnicity | Population | Percent of Population (%) |
|---|---|---|
| American Indian or Alaska Native | 1 | 1.89 |
| Asian | 7 | 13.21 |
| Black or African American | 1 | 1.89 |
| Hispanic/Latino | 10 | 18.87 |
| Two or more races | 2 | 3.77 |
| White | 32 | 60.38 |
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