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SCHOOL COMMUNITY·LISLE CUSD 202·NCES 172320002553

Lisle High School

1800 Short St, Lisle, IL 60532 · (630) 493-8300 · DuPage County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL447 STUDENTS
A
allk12 Grade
Scored higher than 94% of Illinois public high schools
  • ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • A+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • ·Three-year trend Not available for this school, so the grade uses the other parts.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Illinois public high schools

Enrollment
447
High
DISTRICT 521 · STATE 834
Student : Teacher
11.2:1
40 FTE teachers
DISTRICT 11.9:1 · STATE 13.8:1
Free / Reduced Lunch
35%
157 students
DISTRICT 32% · STATE 56%
Community
5
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 911325%
Grade 1010924%
Grade 1112127%
Grade 1210423%
Student demographics
63%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 61% · STATE 69% · US 70%
White
24354%
DISTRICT 57% · STATE 45% · US 43%
Hispanic
10223%
DISTRICT 22% · STATE 29% · US 30%
Black
4410%
DISTRICT 9% · STATE 16% · US 15%
Asian
256%
DISTRICT 5% · STATE 6% · US 6%
Two+
317%
DISTRICT 7% · STATE 5% · US 5%
Pacific Islander
10%
DISTRICT 0% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
25557%
Female
19143%

School pathway

Feeds from
Lisle Jr High School06–08
Based on grade levels within Lisle CUSD 202. Attendance zones can vary; confirm enrollment with the district.

Discussions

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BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
62.3%
composite math + reading, all grades
Predicted
51.2%
based on IL schools with similar FRL share
Beats by
+11.0pp
above demographic expectation

What this means: About 62% of students here test proficient in math and reading, compared with the roughly 51% typical for Illinois schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Illinois's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like Lisle High School

Lisle High School's state test result (62.3% proficient) is higher than 4 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Lisle High School this school44735.1%62.3%
Westmont High School
Westmont
39538.5%67.4%
Galena High School
Galena
26035.0%51.0%
Genoa-Kingston High School
Genoa
48539.4%39.1%
Crystal Lake South High School
Crystal Lake
1,27932.1%46.5%
Woodstock North High School
Woodstock
91540.3%42.8%
Matched among Illinois high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Lisle High School ranks

Among high schools
MeasureThis schoolIn IllinoisIn DuPage County
State test proficiency
ranked highest first
62.3%#22 of 573#6 of 17
Enrollment
ranked largest first
447#348 of 708#22 of 24
Students per teacher
ranked fewest first
11.2:1#60 of 528#1 of 23
Diversity index
ranked most diverse first
63.3%#76 of 537#10 of 23
Free and reduced lunch
ranked highest share first
35.1%#465 of 578#8 of 17
Enrollment change since 2017-18
ranked steepest decline first
-6.9%#224 of 358#9 of 20
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
447
-3 (-1%) vs 2020
-1% since 1990-91, when it was 452
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-254474011.2:135% (157)
2023-2443539.810.9:134% (150)
2022-2343139.810.8:131% (132)
2020-21450N/AN/AN/A
2017-1848040.611.8:128% (132)
2015-164984012.4:127% (134)
2010-115353415.7:125% (133)
2000-016264015.7:1N/A
1990-914523214.1:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Lisle High School.

Since 2017-18: students down 7% (480 to 447); teachers down 1% (40.6 to 40).

About Lisle High School

Lisle High School is a low-enrollment high school in Illinois, located in Lisle. Classes run from 9 through 12, and the school has 447 students. The average for high schools in Illinois is about 834 students, so this school is 46% smaller than average.

Lisle High School is one school in a 3-school district, Lisle CUSD 202, which enrolls 1,562 students.

White students are the majority at Lisle High School, with 54% of enrollment. The school is also 23% Hispanic, 10% Black, 7% multiracial, and 6% Asian. The White share of the county population is higher, at 65%. The school's diversity index is 63%, meaning two students picked at random have a 63% chance of belonging to different racial or ethnic groups.

Its teaching staff equals 40 full-time positions, a ratio of 11.2:1. That is lower than the 13.8:1 average for high schools in Illinois. Free and reduced-price lunch eligibility, a common measure of family income, is 35%. For comparison, public schools in DuPage County average 34%.

Lisle High School is graded A by allk12, scoring above 94% of Illinois public high schools once test results, poverty-adjusted performance, and the recent trend are combined.

Based on student poverty, the model expects 51.2% at Lisle High School; the school's average proficiency rate on state tests is 62.3%.

In DuPage County (population about 930,024), the median household income is $112,096, a bachelor's degree or higher is held by about 52% of adults, and the poverty rate is about 5%. There are 277 public schools in DuPage County, enrolling about 138,557 students in all.

Of nearby public schools, Lisle Jr High School is the closest, at about 0.7 miles. In all, at least 8 other public schools sit within five miles of Lisle High School. Its average proficiency rate of 62.3% is below the 65.0% average for nearby schools.

For locale, NCES codes Lisle High School as Suburb: Large.

In 2020-21, Lisle High School enrolled 450; in 2024-25, 447.

The discussion area below is open to posts about sports tryouts, band and choir, and theater. Questions from prospective families are welcome too.

DuPage County at a glance

View full county profile
Population
930,024
Census ACS
Median income
$112,096
Household, ACS
Bachelor's+
52%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
277
138,557 students

Quick facts

School name
Lisle High School
District
Lisle CUSD 202
Address
1800 Short St, Lisle, IL 60532
Phone
(630) 493-8300
County
DuPage County
Level
High
Grade range
09–12
Total enrollment
447
Teachers (FTE)
40
Student–teacher ratio
11.2:1
Free and reduced lunch
157 (35%)
Locale
21-Suburb: Large
NCES ID
172320002553
Charter school
No
Virtual school
No

Related schools

Other schools in Lisle CUSD 202
Other schools in Lisle
Nearby schools

Frequently asked questions

About Lisle High School
What is the total enrollment at Lisle High School?
Lisle High School enrolls approximately 447 students in grades 09-12.
What grades does Lisle High School serve?
Lisle High School serves grades 09-12.
What is the student-teacher ratio at Lisle High School?
The student-to-teacher ratio at Lisle High School is approximately 11.2:1 (40 FTE teachers).
What is the racial breakdown of students at Lisle High School?
At Lisle High School, the student body is approximately 54% White, 23% Hispanic, 10% Black, 6% Asian, 7% Two or more.
Is Lisle High School public or private?
Lisle High School is a public K-12 school, overseen by Lisle CUSD 202.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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