Wilmington High School is a public four-year high school located in Wilmington, a southwest suburb of Chicago of the United States, in Will County. It is operated by Wilmington School District 209-U.
Serving 432 students in grades 9-12, Wilmington 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 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 14:1 is higher than the Illinois state level of 13:1.
Minority enrollment is 19% 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: 432 students
- Student:Teacher Ratio: 14:1
- Minority Enrollment: 19%
- Graduation Rate: ≥95% (Top 10% in IL)
- Overall Testing Rank: Top 50%
- Math Proficiency: 25-29% (Top 50%)
- Reading Proficiency: 20-24% (Btm 50%)
- Science Proficiency: 50-54% (Top 50%)
- Source: National Center for Education Statistics (NCES), IL Dept. of Education
Top Rankings
Wilmington High School ranks among the top 20% of public schools in Illinois for:
Category
Attribute
Graduation Rate
School Overview
Wilmington High School's student population of 432 students has stayed relatively flat over five school years.
The teacher population of 30 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
432 students
Gender %
Total Classroom Teachers
30 teachers
Colors
White, Purple
School Rankings
Wilmington 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 Wilmington High School is 0.32, 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
#1523 out of 3426 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
(20-21)25-29%
28%
Reading/Language Arts Test Scores (% Proficient)
20-24%
30%
Science Test Scores (% Proficient)
50-54%
50%
Student : Teacher Ratio
14:1
13:1
American Indian
n/a
1%
Asian
n/a
6%
Hispanic
16%
28%
Black
1%
16%
White
81%
45%
Hawaiian
n/a
n/a
Two or more races
2%
4%
All Ethnic Groups
Graduation Rate
≥95%
87%
Eligible for Free Lunch
28%
43%
Eligible for Reduced Lunch
13%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), IL Dept. of Education
School Notes
- School Mascot: Wildcats
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Wilmington High School's ranking?
Wilmington High School is ranked #1523 out of 3,426 schools, which ranks it among the top 50% of public schools in Illinois.
What schools are Wilmington High School often compared to?
Wilmington High Schoolis often viewed alongside schools like Reed-custer High School, Romeoville 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 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 Wilmington High School?
The graduation rate of Wilmington High School is 95%, which is higher than the Illinois state average of 87%.
How many students attend Wilmington High School?
432 students attend Wilmington High School.
What is the racial composition of the student body?
81% of Wilmington High School students are White, 16% of students are Hispanic, 2% of students are Two or more races, and 1% of students are Black.
What is the student:teacher ratio of Wilmington High School?
Wilmington High School has a student ration of 14:1, which is higher than the Illinois state average of 13:1.
What grades does Wilmington High School offer ?
Wilmington High School offers enrollment in grades 9-12
What school district is Wilmington High School part of?
Wilmington High School is part of Wilmington CUSD 209u School District.
School Reviews
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