- Enrollment
- 515
- Students per teacher
- 14.7:1
- Resource Index
- 41/100
High school (grades 9-12) · Seymour, CT
Seymour High School
Federal NCES profile for Seymour High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 46/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 090399000793
👥 S:T ratio 50
🌟 Gifted program 30
🎓 Counselors 70
📋 Attendance 34
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Seymour High School earns 46/100 on the Resource Investment Index, with class sizes near the Connecticut median.
- #2 of 4
- public schools in Seymour · Resource Index
- 46
- Resource Index · Typical
- 12.6:1
- students per teacher
- 30.9%
- free-lunch eligible
Seymour High School has class sizes near the Connecticut median. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Seymour High School ranks #2 of 4 public schools in Seymour, CT.
School address
District: Seymour School District · Connecticut
NCES ID 090399000793 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-10 students YoY
Seymour High School held near 598 students from 2022-23 to 2023-24 (-10 headcount).
Teacher FTE held 48.4 → 48.6 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-10 students YoY 090399000793 · Seymour, CT High · MID · TRAD
604 enr · 12.6:1 · 30.9% lunch · RII 46
Nearest enrollment peer: Chatfield-Lopresti School (515 students)
Seymour High School held near 598 students from 2022-23 to 2023-24 (-10 headcount). Teacher FTE held 48.4 → 48.6 across the same CCD years. Read with this school → · District book → · Connecticut schools → · Find another →
Seymour High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Seymour High School
604 students
- Chatfield-Lopr
Chatfield-Lopresti School
515 students
- Seymour Middle
Seymour Middle School
494 students
- Bungay School
Bungay School
478 students
What this shows Seymour High School reports 604 students on the CCD universe file.
How Seymour High School compares
Seymour 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 | 12.6:1 | ▲ 4% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 30.9% | ▼ 15% | 36.4% | 51.7% |
| Enrollment | 604 | top 22% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.6:1
Leaner classes than 70% of US schools, among the more generously staffed nationally.
604
Bigger than 73% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
30.9%
free-lunch eligible
- 15% 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
12.6:1
students per teacher
- 4% above state mean
Top 69% in Connecticut - lower ratio than 31% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
26.3%
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
$20,725
per pupil, district-wide
- below Connecticut avg of $24,680
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors4.0 FTE
Per 151 students, the combined health-and-guidance staffing load for this school.
Discipline context
41
in-school suspensions + 48 out-of-school
Suspension rate: 6.8 per 100 students. Combined in-school and out-of-school rate: 14.7 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
Student demographics
White 64.5%
Hispanic or Latino 21.4%
African American 8.0%
Two or More 3.2%
Asian 3.0%
Largest group: White at 64.5% of enrollment.
Student-body diversity index 53.0/100
Simpson diversity index - at 53.0, Seymour High School is more mixed than the Connecticut school average of 50.5.
Programs
AP courses offered 9
District finance for Seymour School District reports $20,725 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Seymour High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Chatfield-Lopresti School | Similar size | Similar economic need | Higher S:T ratio |
| Seymour Middle School | Similar size | Similar economic need | Similar S:T ratio |
| Bungay School | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Seymour High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 494
- Students per teacher
- 12.7:1
- Resource Index
- 47/100
- Enrollment
- 478
- Students per teacher
- 16.5:1
- Resource Index
- 33/100
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 (~604 students)
Frequently asked questions about Seymour High School
How many students attend Seymour High School?
Seymour High School has 604 students enrolled. It is a high school in Seymour, CT. CCD year-over-year: 608 (2022-23) → 598 (2023-24), nearly flat (-10).
What is the student-teacher ratio at Seymour High School?
The student-teacher ratio at Seymour High School is 12.6:1, which is 4% higher than the Connecticut average of 12.1:1 and 20% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Seymour High School?
30.9% of students at Seymour High School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Seymour High School?
The largest demographic group at Seymour High School is White at 64.5% of enrollment, in Seymour, CT. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 53.0/100.
What is the Resource Investment Index for Seymour High School?
Seymour High School has a Resource Investment Index of 46/100 (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 Seymour High School rank among public schools in Seymour?
By Resource Investment Index, Seymour High School ranks #2 of 4 public schools in Seymour, CT. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking.
What other schools are in Seymour School District?
Besides Seymour High School, Seymour School District also operates Chatfield-Lopresti School (515 students), Seymour Middle School (494 students), and Bungay School (478 students). See the Seymour School District district page for the complete list.