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Largest Connecticut Private High Schools

The average private high school in Connecticut has 209 students (2026-27).

The largest private high school in Connecticut is The Greenwich Country Day School, with 1,345 students.

Quick Facts (2026-27)

# CT Schools Ranked: 175
Top 20 Range (Students): 518–1,345
CT School Avg.: 209
National School Avg.: 243

Quick Facts (2026-27)

# CT Schools Ranked: 175
Top 20 Range (Students): 518–1,345
CT School Avg.: 209
National School Avg.: 243

Connecticut Average Students Per School (Trends)

View Data

Year	Connecticut (CT) avg
2025	207
2024	203
2023	217
2022	225
2021	223
2020	216
2019	226
2018	223
2017	249
2016	244
2015	234

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Show school map — Connecticut (students range: 518–1,345, avg 209)

School Size Range: 394 1,345 Avg. School Size: 638

Frequently Asked Questions

What is the Connecticut average private high schools student size?

The Connecticut average private high schools student size is 209 for 2026-27.

What are the private high schools with the largest student size in Connecticut?

The top ranked private high schools in Connecticut include The Greenwich Country Day School, Horace Mann School John Dorr Nature Laboratory and Greenwich Country Day School.

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