Enrollment
721
Connecticut · 2024-25 NCES data
High school (grades 9-12) · Danbury, CT
Federal NCES profile for Henry Abbott Technical High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
The verdict
Henry Abbott Technical High School earns 42/100 on the Resource Investment Index, with class sizes larger than 76% of Connecticut schools.
Henry Abbott Technical High School has class sizes larger than 76% of Connecticut schools. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Henry Abbott Technical High School ranks #1 of 20 public schools in Danbury, CT.
NCES ID 090000201144 Verify on NCES CCD record →
Enrollment
721
Connecticut · 2024-25 NCES data
Teachers (FTE)
55.0
Federal CCD staff survey
Students per teacher
13.1:1
vs 12.1:1 Connecticut avg
+8% vs state
Free-lunch eligible
27.6%
vs 36.4% Connecticut avg
-24% vs state
How Henry Abbott Technical High School compares with Connecticut and U.S. medians
Slightly above state median
13.1:1 - 1.0 above the Connecticut state median of 12.1:1, indicating larger average class loads than typical schools in the state.
Henry Abbott Technical High School is a large high school in Danbury, Connecticut, enrolling 721 students.
Class loads run somewhat heavier than typical: 13.1:1 puts it in the larger third of Connecticut schools by student-teacher ratio.
Its free-meal eligibility rate of 27.6% lands close to the Connecticut typical range, neither a high- nor low-need campus by this measure.
Enrollment of 721 puts it in the larger third of Connecticut schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 1,003 scored Connecticut schools.
Against 159 statewide peers matched on enrollment and economic need, it ranks mid-pack at #81.
Its student body is led by Hispanic or Latino (58%) and White (32%) (diversity index 56/100).
No Advanced Placement courses are reported for this campus in the federal data.
Counselor coverage is strong, about 180 students per counselor, inside the American School Counselor Association's recommended 250:1.
16.5% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Connecticut Technical Education and Career System spends $489 per pupil, 98% below the Connecticut average, a leaner-resourced district than most.
The federal civil-rights collection also records 3 expulsions at this campus for 2021-22.
Among Danbury's high schools, it stands alongside Danbury High School (3,612 students): Henry Abbott Technical High School is smaller than that campus by headcount and runs leaner classes (13.1:1 vs 15.5:1).
Connecticut Technical Education and Career System also operates W. F. Kaynor Technical High School (831 students) and Bullard-Havens Technical High School (819 students) alongside Henry Abbott Technical High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Henry Abbott Technical High School on the metrics families compare, against Connecticut and U.S. means.
| Metric | This school | vs Connecticut | Connecticut avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.1:1 | ▲ 8% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 27.6% | ▼ 24% | 36.4% | 51.7% |
| Enrollment | 721 | top 14% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: Hispanic or Latino at 58.0% of enrollment.
Simpson diversity index - at 55.7, Henry Abbott Technical High School is more mixed than the Connecticut school average of 50.5.
District-wide per-pupil expenditure for Connecticut Technical Education and Career System, which includes Henry Abbott Technical High School.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| W. F. Kaynor Technical High School | Similar size | Higher economic need | Similar S:T ratio |
| Bullard-Havens Technical High School | Similar size | Higher economic need | Similar S:T ratio |
| H. C. Wilcox Technical High School | Similar size | Similar economic need | Similar S:T ratio |
| Platt Technical High School | Similar size | Higher economic need | Similar S:T ratio |
| A. I. Prince Technical High School | Similar size | Higher economic need | Lower S:T ratio |
Comparisons are relative to Henry Abbott Technical High School's own figures; each column derives from NCES Common Core of Data.
1 comparable high schools (grades 9-12) serving the same city.
Matched by enrollment size and by staffing ratio across all of Connecticut, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Henry Abbott Technical High School's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Henry Abbott Technical High School has 721 students enrolled. It is a high school in Danbury, CT.
The student-teacher ratio at Henry Abbott Technical High School is 13.1:1, which is 8% higher than the Connecticut average of 12.1:1 and 17% lower than the national average of 15.7:1.
27.6% of students at Henry Abbott Technical High School are eligible for free lunch, compared to the Connecticut average of 36.4%.
The largest demographic group at Henry Abbott Technical High School is Hispanic or Latino at 58.0% of enrollment, in Danbury, CT. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.7/100.
Henry Abbott Technical High School has a Resource Investment Index of 42/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Henry Abbott Technical High School ranks #1 of 20 public schools in Danbury, CT. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Danbury on the city page.
Henry Abbott Technical High School earns 42/100 on the Resource Investment Index, with class sizes larger than 76% of Connecticut schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Henry Abbott Technical High School, Connecticut Technical Education and Career System also operates W. F. Kaynor Technical High School (831 students), Bullard-Havens Technical High School (819 students), and H. C. Wilcox Technical High School (753 students). See the Connecticut Technical Education and Career System district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
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PlainSchools, “Henry Abbott Technical High School, Danbury CT.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/henry-abbott-technical-high-school-ct
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