- Enrollment
- 831
- Students per teacher
- 13.2:1
- Resource Index
- 40/100
High school (grades 9-12) · Ansonia, CT
Emmett O'brien Technical High School
Federal NCES profile for Emmett O'brien Technical High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 090000201141
👥 S:T ratio 50
🌟 Gifted program 30
🎓 Counselors 69
📋 Attendance 18
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Emmett O'brien Technical High School earns 42/100 on the Resource Investment Index, with class sizes near the Connecticut median.
- #1 of 5
- public schools in Ansonia · Resource Index
- 42
- Resource Index · Typical
- 12.4:1
- students per teacher
- 33.8%
- free-lunch eligible
Emmett O'brien Technical High School has class sizes near the Connecticut median. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Emmett O'brien Technical High School ranks #1 of 5 public schools in Ansonia, CT.
School address
NCES ID 090000201141 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+25 students YoY
Emmett O'brien Technical High School held near 652 students from 2022-23 to 2023-24 (+25 headcount).
Teacher FTE added 50.2 → 54.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+25 students YoY 090000201141 · Ansonia, CT High · MID · TRAD
618 enr · 12.4:1 · 33.8% lunch · RII 42
Nearest enrollment peer: W. F. Kaynor Technical High School (831 students)
Emmett O'brien Technical High School held near 652 students from 2022-23 to 2023-24 (+25 headcount). Teacher FTE added 50.2 → 54.0 across the same CCD years. Read with this school → · District book → · Connecticut schools → · Find another →
Emmett O'brien Technical High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- W. F. Kaynor T
W. F. Kaynor Technical High School
831 students
- Bullard-Havens
Bullard-Havens Technical High School
819 students
- H. C. Wilcox T
H. C. Wilcox Technical High School
753 students
- Platt Technica
Platt Technical High School
749 students
- A. I. Prince T
A. I. Prince Technical High School
725 students
- This school
Emmett O'brien Technical High School
618 students
What this shows Emmett O'brien Technical High School reports 618 students on the CCD universe file.
How Emmett O'brien Technical High School compares
Emmett O'brien Technical High School held steady on CCD headcount: ratios and free-lunch share vs Connecticut and U.S. means.
| Metric | This school | vs Connecticut | Connecticut avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.4:1 | ▲ 2% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 33.8% | ▼ 7% | 36.4% | 51.7% |
| Enrollment | 618 | top 20% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.4:1
Leaner classes than 72% of US schools, among the more generously staffed nationally.
618
Bigger than 74% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
33.8%
free-lunch eligible
- 7% below the Connecticut average of 36.4%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
12.4:1
students per teacher
- 2% above state mean
Top 66% in Connecticut - lower ratio than 34% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
33.0%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$28,755
per pupil, district-wide
- above Connecticut avg of $24,680
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors4.0 FTE
Per 155 students, the combined health-and-guidance staffing load for this school.
Discipline context
84
in-school suspensions + 31 out-of-school
Suspension rate: 13.6 per 100 students. Combined in-school and out-of-school rate: 18.6 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 44.7%
Hispanic or Latino 37.4%
African American 11.4%
Two or More 5.7%
Asian 0.5%
American Indian / Alaska Native 0.3%
Largest group: White at 44.7% of enrollment.
Student-body diversity index 64.4/100
Simpson diversity index - at 64.4, Emmett O'brien Technical High School is more mixed than the Connecticut school average of 50.5.
Programs
AP program Not offered
District finance for Connecticut Technical Education and Career System reports $28,755 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Emmett O'brien Technical High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| W. F. Kaynor Technical High School | Larger | Higher economic need | Similar S:T ratio |
| Bullard-Havens Technical High School | Larger | 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 | Similar 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 Emmett O'brien Technical High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 819
- Students per teacher
- 11.7:1
- Resource Index
- 41/100
- Enrollment
- 753
- Students per teacher
- 11.8:1
- Resource Index
- 42/100
- Enrollment
- 749
- Students per teacher
- 12.3:1
- Resource Index
- 38/100
- Enrollment
- 725
- Students per teacher
- 9.9:1
- Resource Index
- 40/100
Similar high schools in Ansonia
1 comparable high schools (grades 9-12) serving the same city.
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~618 students)
Frequently asked questions about Emmett O'brien Technical High School
How many students attend Emmett O'brien Technical High School?
Emmett O'brien Technical High School has 618 students enrolled. It is a high school in Ansonia, CT. CCD year-over-year: 627 (2022-23) → 652 (2023-24), nearly flat (+25).
What is the student-teacher ratio at Emmett O'brien Technical High School?
The student-teacher ratio at Emmett O'brien Technical High School is 12.4:1, which is 2% higher than the Connecticut average of 12.1:1 and 21% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Emmett O'brien Technical High School?
33.8% of students at Emmett O'brien Technical High School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Emmett O'brien Technical High School?
The largest demographic group at Emmett O'brien Technical High School is White at 44.7% of enrollment, in Ansonia, CT. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 64.4/100.
What is the Resource Investment Index for Emmett O'brien Technical High School?
Emmett O'brien Technical High School has a Resource Investment Index of 42/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Emmett O'brien Technical High School rank among public schools in Ansonia?
By Resource Investment Index, Emmett O'brien Technical High School ranks #1 of 5 public schools in Ansonia, 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 Ansonia on the city page.
What other schools are in Connecticut Technical Education and Career System?
Besides Emmett O'brien 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.