Below Average
#769 of 990 schools in CT
Derby High School
High School · Derby School District · Derby, CT
A high school in Derby, CT where students score 7 points below what's typical for similar communities.
75 Chatfield Street, Derby, CT 06418
- Math 15% proficient (2022)
- Reading 45% proficient (2022)
- 77.0% 4-year graduation
Academics
Full Profile · 4/4 metricsView breakdown
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Students at Derby High School score 30% proficient, which is below what's typical for similar communities (expected: 37%).
2022 EdFacts proficiency
Most recent published year. School vs. CT average.
Trend
→ SteadyProficiency is down 39 points across the 14-year record (2009–2022) and has held near 30% recently.
Show all 13 years
Multi-year averages used by the rating model: math 26% (multi-year average, 2009-2022) · reading/ELA 48% (multi-year average, 2009-2022)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 26 test records from CT state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
56.5%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Derby High School sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.
Getting around & local context
- Walk 27Car-Dependent
- Bike 16Somewhat Bikeable
- City Safety: High2,895/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Derby), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$75,718
Median home value
$243,500
Median rent
$1,453/mo
College educated
33%
Homeownership
61.9%
Poverty rate
9.4%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 06418; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Shelton High SchoolEnrollment path unverified | 6.0 | 9–12 | 1.4 mi | 1,311 | Compare → |
| Emmett O'brien Technical High SchoolEnrollment path unverified | 6.2 | 9–12 | 1.7 mi | 652 | Compare → |
| Ansonia High SchoolEnrollment path unverified | 5.5 | 9–12 | 1.8 mi | 593 | Compare → |
| Seymour High SchoolEnrollment path unverified | 5.6 | 9–12 | 3.5 mi | 598 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Enrollment path unverified: Potential public school; its attendance or application path has not been classified.
Derby School District
- Schools in district
- 5
- Rank in district
- #3 of 5
- District spending per student
- $28,158NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 22.3%Census SAIPE · 2024
Derby High School is listed in Derby School District; a district label does not verify attendance for an address.
About Derby High School
Derby High School is a public high school in Derby, CT, part of Derby School District, serving approximately 370 students in grades 9th-12th with a 10.3:1 student-teacher ratio. It holds a MySchoolScout rating of 4.7 out of 10 and ranks #769 of 990 schools in CT. State assessment records show 26% math proficiency (multi-year average, 2009-2022) and 48% reading/ELA proficiency (multi-year average, 2009-2022).
Frequently asked questions
Common questions about Derby High School
What grades does Derby High School serve?
Derby High School serves students in grades 9th through 12th.
How many students attend Derby High School?
Derby High School has an enrollment of approximately 370 students.
What is the student-teacher ratio at Derby High School?
The student-teacher ratio at Derby High School is 10.3:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Derby High School rank in CT?
Derby High School ranks #769 of 990 schools in CT.
What is Derby High School's MySchoolScout rating?
Derby High School has a current MySchoolScout rating of 4.7 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Derby High School?
Based on loaded state assessment records, Derby High School has 26% math proficiency (multi-year average, 2009-2022) and 48% reading/ELA proficiency (multi-year average, 2009-2022).
Is Derby High School a charter school?
No, Derby High School is not a charter school. It is a traditional public school operated by the local school district.
Is Derby High School a Title I school?
No, Derby High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Derby High School?
56.5% of students at Derby High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- 9th – 12th
- Enrollment
- 370
- Student-Teacher Ratio
- 10.3:1
- Teachers (FTE)
- 36
- Type
- regular
- Setting
- Large Suburb
- County
- Connecticut Planning Region 4
- Chronic Absenteeism (SY 2022-23)
- 28.9%
- Phone
- (203) 736-5032
- 4-Year Graduation
- 77.0%
- Area population (ZIP 06418)
- 12,150
- Area average commute
- 27.3 min
- Area median age
- 46.4
Official sources & links
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2022 EdFacts · Low confidence
- Older source: 2022 EdFacts. Use as historical context.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2022 EdFacts · Low confidence
- Older source: 2022 EdFacts. Use as historical context.
- Available for part of the eligible units; results may not represent the full area.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 06418; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2022; directory SY 2023–24
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