Oswego High School, or OHS, is a public four-year high school located in Oswego, Illinois, a southwest suburb of Chicago, Illinois, in the United States. It is part of Oswego Community Unit School District 308, which also includes Oswego East High School.
Serving 2,866 students in grades 9-12, Oswego 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 24% (which is lower than the Illinois state average of 27%). The percentage of students achieving proficiency in reading/language arts is 33% (which is higher than the Illinois state average of 30%).
The student:teacher ratio of 17:1 is higher than the Illinois state level of 13:1.
Minority enrollment is 49% 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: 2,866 students
- Student:Teacher Ratio: 17:1
- Minority Enrollment: 49%
- Graduation Rate: 93% (Top 20% in IL)
- Overall Testing Rank: Top 50%
- Math Proficiency: 24% (Top 50%)
- Reading Proficiency: 33% (Top 50%)
- Science Proficiency: 54% (Top 50%)
- Source: National Center for Education Statistics (NCES), IL Dept. of Education
Top Rankings
Oswego High School ranks among the top 20% of public schools in Illinois for:
Category
Attribute
Graduation Rate
Diversity
School Overview
Oswego High School's student population of 2,866 students has stayed relatively flat over five school years.
The teacher population of 166 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
2,866 students
Gender %
Total Classroom Teachers
166 teachers
Year Founded
1867
Colors
Navy Blue, Orange
School Rankings
Oswego 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 Oswego High School is 0.64, 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
#1105 out of 3426 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
(22-23)24%
27%
Reading/Language Arts Test Scores (% Proficient)
33%
30%
Science Test Scores (% Proficient)
54%
50%
Student : Teacher Ratio
17:1
13:1
American Indian
n/a
1%
Asian
3%
6%
Hispanic
31%
28%
Black
11%
16%
White
51%
45%
Hawaiian
n/a
n/a
Two or more races
4%
4%
All Ethnic Groups
Graduation Rate
(22-23)93%
87%
Eligible for Free Lunch
16%
43%
Eligible for Reduced Lunch
2%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
School Notes
- School Mascot: Panthers
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Oswego High School's ranking?
Oswego High School is ranked #1105 out of 3,426 schools, which ranks it among the top 50% of public schools in Illinois.
What schools are Oswego High School often compared to?
Oswego High Schoolis often viewed alongside schools like Oswego East High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
24% of students have achieved math proficiency (compared to the 27% IL state average), while 33% of students have achieved reading proficiency (compared to the 30% IL state average).
What is the graduation rate of Oswego High School?
The graduation rate of Oswego High School is 93%, which is higher than the Illinois state average of 87%.
How many students attend Oswego High School?
2,866 students attend Oswego High School.
What is the racial composition of the student body?
51% of Oswego High School students are White, 31% of students are Hispanic, 11% of students are Black, 4% of students are Two or more races, and 3% of students are Asian.
What is the student:teacher ratio of Oswego High School?
Oswego High School has a student ration of 17:1, which is higher than the Illinois state average of 13:1.
What grades does Oswego High School offer ?
Oswego High School offers enrollment in grades 9-12
What school district is Oswego High School part of?
Oswego High School is part of CUSD 308 School District.
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