Serving 361 students in grades 9-12, Seneca High School ranks in the top 50% of all schools in Illinois for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 30-34% (which is higher than the Illinois state average of 28%). The percentage of students achieving proficiency in reading/language arts is 20-24% (which is lower than the Illinois state average of 30%).
The student:teacher ratio of 10:1 is lower than the Illinois state level of 13:1.
Minority enrollment is 13% of the student body (majority Hispanic), which is lower than the Illinois state average of 55% (majority Hispanic).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 361 students
- Student:Teacher Ratio: 10:1
- Minority Enrollment: 13%
- Graduation Rate: 90-94% (Top 30% in IL)
- Overall Testing Rank: Top 50%
- Math Proficiency: 30-34% (Top 30%)
- Reading Proficiency: 20-24% (Btm 50%)
- Science Proficiency: 65-69% (Top 20%)
- Source: National Center for Education Statistics (NCES), IL Dept. of Education
Top Rankings
Seneca High School ranks among the top 20% of public schools in Illinois for:
Category
Attribute
Science Proficiency
Student Attention
School Overview
Seneca High School's student population of 361 students has declined by 15% over five school years.
The teacher population of 36 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
361 students
Gender %
Total Classroom Teachers
36 teachers
Students by Grade
School Rankings
Seneca High School ranks within the top 50% of all 3,426 schools in Illinois (based off of combined math and reading proficiency testing data).
The diversity score of Seneca High School is 0.23, which is less than the diversity score at state average of 0.70. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1421 out of 3426 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
(20-21)30-34%
28%
Reading/Language Arts Test Scores (% Proficient)
20-24%
30%
Science Test Scores (% Proficient)
65-69%
50%
Student : Teacher Ratio
10:1
13:1
American Indian
n/a
1%
Asian
n/a
6%
Hispanic
11%
28%
Black
n/a
16%
White
87%
45%
Hawaiian
n/a
n/a
Two or more races
2%
4%
All Ethnic Groups
Graduation Rate
90-94%
87%
Eligible for Free Lunch
27%
43%
Eligible for Reduced Lunch
6%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
Frequently Asked Questions
What is Seneca High School's ranking?
Seneca High School is ranked #1421 out of 3,426 schools, which ranks it among the top 50% of public schools in Illinois.
What schools are Seneca High School often compared to?
Seneca High Schoolis often viewed alongside schools like Ottawa Township High School, Central High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
30-34% of students have achieved math proficiency (compared to the 28% IL state average), while 20-24% of students have achieved reading proficiency (compared to the 30% IL state average).
What is the graduation rate of Seneca High School?
The graduation rate of Seneca High School is 90-94%, which is higher than the Illinois state average of 87%.
How many students attend Seneca High School?
361 students attend Seneca High School.
What is the racial composition of the student body?
87% of Seneca High School students are White, 11% of students are Hispanic, and 2% of students are Two or more races.
What is the student:teacher ratio of Seneca High School?
Seneca High School has a student ration of 10:1, which is lower than the Illinois state average of 13:1.
What grades does Seneca High School offer ?
Seneca High School offers enrollment in grades 9-12
What school district is Seneca High School part of?
Seneca High School is part of Seneca TWP HSD 160 School District.
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