Winnebago High School is a high school in Winnebago CUSD#323, in Winnebago, Illinois.
Serving 406 students in grades 9-12, Winnebago High School ranks in the top 50% of all schools in Illinois for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 25-29% (which is approximately equal to the Illinois state average of 27%). The percentage of students achieving proficiency in reading/language arts is 30-34% (which is approximately equal to the Illinois state average of 30%).
The student-teacher ratio of 12:1 is lower than the Illinois state level of 13:1.
Minority enrollment is 18% of the student body (majority Hispanic), which is lower than the Illinois state average of 55% (majority Hispanic).
Quick Facts (2025-26)
- Grades: 9-12
- Enrollment: 406 students
- Student-Teacher Ratio: 12:1
- Minority Enrollment: 18%
- Graduation Rate: 85-89% (Top 50% in IL)
- Overall Testing Rank: Top 50%
- Math Proficiency: 25-29% (Top 50%)
- Reading Proficiency: 30-34% (Top 50%)
- Science Proficiency: 55-59% (Top 50%)
- Source: National Center for Education Statistics (NCES), IL Dept. of Education
Top Rankings
Winnebago High School ranks among the top 20% of public schools in Illinois for:
Category
Attribute
Most improved public schools
School Overview
Winnebago High School's student population of 406 students has declined by 12% over five school years.
The teacher population of 33 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
406 students
Gender %
Total Classroom Teachers
33 teachers
School Calendar
Last Day of School
Mon. May 25, 2026
School Rankings
Winnebago High School ranks within the top 50% of all 3,542 schools in Illinois (based off of combined math and reading proficiency testing data).
The diversity score of Winnebago High School is 0.32, which is less than the diversity score at state average of 0.69. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1255 out of 3542 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
25-29%
27%
Reading/Language Arts Test Scores (% Proficient)
30-34%
30%
Science Test Scores (% Proficient)
55-59%
50%
Student-Teacher Ratio
12:1
13:1
American Indian
n/a
n/a
Asian
1%
6%
Hispanic
9%
28%
Black
3%
17%
White
82%
45%
Hawaiian
n/a
n/a
Two or more races
5%
4%
All Ethnic Groups
Graduation Rate
85-89%
87%
Eligible for Free Lunch
18%
43%
Eligible for Reduced Lunch
7%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
School Notes
- School Mascot: Indian
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Winnebago High School's ranking?
Winnebago High School is ranked #1255 out of 3,542 schools, which ranks it among the top 50% of public schools in Illinois.
What schools are Winnebago High School often compared to?
Winnebago High Schoolis often viewed alongside schools like Pecatonica High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
25-29% of students have achieved math proficiency (compared to the 27% IL state average), while 30-34% of students have achieved reading proficiency (compared to the 30% IL state average).
What is the graduation rate of Winnebago High School?
The graduation rate of Winnebago High School is 85-89%, which is lower than the Illinois state average of 87%.
How many students attend Winnebago High School?
406 students attend Winnebago High School.
What is the racial composition of the student body?
82% of Winnebago High School students are White, 9% of students are Hispanic, 5% of students are Two or more races, 3% of students are Black, and 1% of students are Asian.
What is the student-teacher ratio of Winnebago High School?
Winnebago High School has a student ration of 12:1, which is lower than the Illinois state average of 13:1.
What grades does Winnebago High School offer ?
Winnebago High School offers enrollment in grades 9-12
What school district is Winnebago High School part of?
Winnebago High School is part of Winnebago CUSD 323 School District.
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