Cos Cob School
Cos Cob, CT · Elementary School
Performance Overview
About This School
Cos Cob School is a elementary school located in Cos Cob, Connecticut. The school serves 337 students.
With a DataScore of 58/100 (C), Cos Cob School performs at the state average for Connecticut. Notably, the school is on an upward trend, showing meaningful improvement over the past three years.
13% of students qualify for free or reduced-price lunch, which is factored into the resource access component of the DataScore.
Frequently Asked Questions
Cos Cob School has a DataScore of 58/100 (Grade C), based on academic proficiency (35%), growth trend (30%), and resource access (35%). This measures actual student outcomes, not school inputs.
Cos Cob School has 337 students enrolled. The student-to-teacher ratio is 9.1:1.
Yes, Cos Cob School is on an upward trend with a 3-year growth score of +11, showing meaningful academic improvement.
The DataScore (0-100, A-F) grades every US public school based on academic outcomes: proficiency rates (35%), 3-year growth trend (30%), graduation rate for high schools (20%), and resource access (15%). Unlike other ratings, it focuses on what students actually achieve.
Cos Cob School is part of the Greenwich School District in Cos Cob, Connecticut. You can view all schools in this district and compare their performance on the district page.
DataScore is calculated from NCES proficiency rates, 3-year growth trends, graduation rates (high schools), and resource access indicators.