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Derby High School

75 Chatfield Street, Derby, CT 06418

CSchola Grade
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Grades
9–12
High
Students
360
Enrolled 2024–25
Students per teacher
9.7 : 1
Full-time teachers
District
Derby School District
Naugatuck Valley Planning Region

Schola Grade C · Average

Letter grade (A–F) · compared with 194 Connecticut high schools · How we grade
Test scores30% proficient in math & reading
35thpercentile
Equity20% of low-income students proficient
33rdpercentile
Attendance29% chronically absent
26thpercentile
Graduation rate77% graduate in 4 years
9thpercentile
College readinessAt least 16% take AP, IB or dual-enrollment courses
19thpercentile
Class size9.7 students per teacher
85thpercentile

Percentiles compare this school with other Connecticut high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About Derby High School

Derby High School is a public high school in Derby, Connecticut, serving grades 9–12. It is part of Derby School District. The school is located in a large suburb in Naugatuck Valley Planning Region.

In the 2024–25 school year, 360 students were enrolled, with about 9.7 students for every full-time teacher. That ratio is smaller than the typical Connecticut high school (11.1 students per teacher). Its Schola Grade is C (average), compared with 194 Connecticut high schools.

Grades & enrollment

Students per grade, 2024–25Grades 9–12

Location & nearby schools

75 Chatfield Street
Derby, CT 06418
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School details

Type
Public School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
360 students
Students per teacher
9.7 to 1
AP courses offered
11
Charter school
No
Magnet school
No
Virtual learning
Offers virtual courses
Locale
Suburb — Large
School district
Derby School District
County
Naugatuck Valley Planning Region
NCES school ID
090111000175

Schools near Derby High School

All 5 schools in Derby →

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.