Grundy Area Vocational Center
CTE · Grades 11–12
Seneca High School
307 E Scott St, Seneca, IL 61360
Grades
9–12
High
Students
378
Enrolled 2024–25
Students per teacher
9.9 : 1
Full-time teachers
District
Seneca Twp HSD 160
LaSalle County
Schola Grade B · Above average
Letter grade (A–F) · compared with 684 Illinois high schools · How we grade
Percentiles compare this school with other Illinois high schools; the line marks the middle. 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 Seneca High School
Seneca High School is a public high school in Seneca, Illinois, serving grades 9–12. It is part of Seneca Twp HSD 160. The school is located in a rural area in LaSalle County.
In the 2024–25 school year, 378 students were enrolled, with about 9.9 students for every full-time teacher. That ratio is smaller than the typical Illinois high school (13.3 students per teacher). Its Schola Grade is B (above average), compared with 684 Illinois 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)
- 378 students
- Students per teacher
- 9.9 to 1
- AP courses offered
- 2
- Charter school
- No
- Magnet school
- No
- Locale
- Rural — Distant
- School district
- Seneca Twp HSD 160
- County
- LaSalle County
- NCES school ID
- 173585003728
Schools near Seneca High School
All 3 schools in Seneca →
Morris Community High School
Public · Grades 9–12 · 926 students
Premier Academy Morris
Alternative · Grades 6–12
Premier Academy Morris TAOEP
Alternative · Grades 6–12
LaSalle Co Detention Center 9-12
Alternative · Grades 9–12
Ottawa Township High School
Public · Grades 9–12 · 1,223 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.