Oak Hill School at Haddam-Killingworth High School
Private · Grades 9–12 · 11 students
Haddam-Killingworth High School
95 Little City Road, Higganum, CT 06441
Grades
9–12
High
Students
466
Enrolled 2024–25
Students per teacher
9.5 : 1
Full-time teachers
District
Regional School District 17
Lower Connecticut River Valley Planning Region
Schola Grade B · Above average
Letter grade (A–F) · compared with 194 Connecticut high schools · How we grade
Percentiles compare this school with other Connecticut high schools; the line marks the middle. Some measures aren't reported for this school, so the grade uses the ones available. 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 Haddam-Killingworth High School
Haddam-Killingworth High School is a public high school in Higganum, Connecticut, serving grades 9–12. It is part of Regional School District 17. The school is located in a rural area near a town in Lower Connecticut River Valley Planning Region.
In the 2024–25 school year, 466 students were enrolled, with about 9.5 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 B (above average), compared with 194 Connecticut high schools.
Grades & enrollment
Students per grade, 2024–25Grades 9–12
Location & nearby schools
School details
- Type
- Public School · What this means
- Level
- High
- Grades offered
- 9–12
- Enrollment (2024–25)
- 466 students
- Students per teacher
- 9.5 to 1
- AP courses offered
- 15
- Charter school
- No
- Magnet school
- No
- Virtual learning
- Offers virtual courses
- Locale
- Rural — Fringe
- School district
- Regional School District 17
- County
- Lower Connecticut River Valley Planning Region
- NCES school ID
- 090353900759
Schools near Haddam-Killingworth High School
All 4 schools in Higganum →
Coginchaug Regional High School
Public · Grades 9–12 · 356 students
Whiting Forensic Hospital
Alternative · Grades 9–12
Vinal Technical High School
CTE · Grades 9–12 · 522 students
Mercy High School
Private · Grades 9–12 · 384 students
East Hampton High School
Public · Grades 9–12 · 488 students
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.