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Honest take: what's the hardest part about being a student at Lemont Twp High School?
Community prompt from u/allk12. Replies below.
Enrollment
1,284
High
STATE 834
SCHOOL COMMUNITY·LEMONT TWP HSD 210·NCES 172250002508
Lemont Twp High School
800 Porter St, Lemont, IL 60439 · (630) 257-5838 · Cook County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,284 STUDENTS
A
allk12 Grade
Scored higher than 92% 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.
- ABeats 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
Student : Teacher
15.0:1
85 FTE teachers
STATE 13.8:1
Free / Reduced Lunch
17%
218 students
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
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 304 | 24% |
| Grade 10 | 319 | 25% |
| Grade 11 | 302 | 24% |
| Grade 12 | 359 | 28% |
Student demographics
34%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
STATE 69% · US 70%
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
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
65.0%
composite math + reading, all grades
Predicted
61.7%
based on IL schools with similar FRL share
Beats by
+3.3pp
above demographic expectation
What this means: About 65% of students here test proficient in math and reading, compared with the roughly 62% 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 Lemont Twp High School
Lemont Twp High School's state test result (65.0% proficient) is higher than 5 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Lemont Twp High School this school | 1,284 | 17.0% | 65.0% |
| Morton High School Morton | 1,061 | 15.6% | 64.7% |
| Prairie Ridge High School Crystal Lake | 1,133 | 22.4% | 60.6% |
| Mahomet-Seymour High School Mahomet | 1,050 | 23.0% | 64.7% |
| Edwardsville High School Edwardsville | 2,342 | 19.0% | 56.9% |
| Mascoutah High School Mascoutah | 1,243 | 21.8% | 58.9% |
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 Lemont Twp High School ranks
Among high schools| Measure | This school | In Illinois | In Cook County |
|---|---|---|---|
| State test proficiency ranked highest first | 65.0% | #17 of 573 | #11 of 170 |
| Enrollment ranked largest first | 1,284 | #176 of 708 | #70 of 206 |
| Students per teacher ranked fewest first | 15.0:1 | #322 of 528 | #93 of 173 |
| Diversity index ranked most diverse first | 33.8% | #283 of 537 | #102 of 180 |
| Free and reduced lunch ranked highest share first | 17.0% | #566 of 578 | #171 of 171 |
| Enrollment change since 2017-18 ranked steepest decline first | -8.5% | #190 of 358 | #55 of 101 |
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 2024-25Enrollment
1,284
-121 (-9%) vs 2020
+120% since 1990-91, when it was 584
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 1,284 | 85.4 | 15.0:1 | 17% (218) |
| 2023-24 | 1,305 | 88.5 | 14.8:1 | 18% (229) |
| 2022-23 | 1,324 | 91.2 | 14.5:1 | 14% (186) |
| 2020-21 | 1,405 | N/A | N/A | N/A |
| 2017-18 | 1,404 | 93 | 15.1:1 | 13% (184) |
| 2015-16 | 1,377 | 89 | 15.5:1 | 11% (147) |
| 2010-11 | 1,427 | 93 | 15.3:1 | 7% (94) |
| 2000-01 | 978 | 64 | 15.3:1 | N/A |
| 1990-91 | 584 | 39 | 15.0:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Lemont Twp High School.
Since 2017-18: students down 9% (1,404 to 1,284); teachers down 8% (93 to 85.4).
About Lemont Twp High School
Lemont Twp High School is a large high school for students in Lemont, Illinois. The school counts 1,284 students across grades 9 through 12. The typical figure for high schools in Illinois is about 834 students.
Lemont Twp HSD 210 operates Lemont Twp High School.
White students are the large majority at Lemont Twp High School, with 80% of enrollment. Other groups include 12% Hispanic, 4% Asian, and 3% multiracial. By comparison, Cook County residents are about 44% White. The chance that two students picked at random at Lemont Twp High School belong to different racial or ethnic groups, known as the diversity index, is 34%.
The school's student-to-teacher ratio is about 15.0:1, with 85.4 full-time-equivalent teachers. The average ratio among high schools in Illinois is 13.8:1, lower than at this school. Students eligible for free or reduced-price lunch make up 17% of enrollment. On average, public schools in Cook County report 66%.
allk12 grades Lemont Twp High School an A. The grade compares the school only with Illinois public high schools, because each state gives its own test.
Lemont Twp High School scores 65.0% on state tests, averaged across results. The predicted figure, based on its student poverty level, is 61.7%.
Within Cook County, median household income is about $83,498, the share of adults with a bachelor's degree or higher is 43%, and roughly 10% of residents are in poverty. The public schools of Cook County number 1,406 and enroll about 697,934.
Nearest public school: Central School, about 0.3 miles away. Other public schools within five miles: at least 8. Lemont Twp High School is 3rd of 8 nearby schools by average proficiency rate.
On the NCES locale scale, the school is Suburb: Large.
Federal counts put enrollment at 1,405 in 2020-21 and 1,284 in 2024-25, a 9% decrease.
Topics for discussion here include sports tryouts, band and choir, and theater. Alumni can share how the school prepared them.
Cook County at a glance
View full county profilePopulation
5,182,090
Census ACS
Median income
$83,498
Household, ACS
Bachelor's+
43%
Adults 25+
Poverty rate
10%
Below federal line
Schools in county
1,406
697,934 students
Quick facts
Related schools
Other schools in Lemont
- Old Quarry Middle SchoolMiddle · 856 students
- Oakwood SchoolElementary · 629 students
- Central SchoolElementary · 591 students
- River Valley SchoolElementary · 588 students
Nearby schools
- Central School0.3 mi · 591
- Oakwood School1.1 mi · 629
- River Valley School1.2 mi · 588
- Old Quarry Middle School1.8 mi · 856
- Reed Elementary School3.3 mi · 291
- John R Tibbott Elementary School3.4 mi · 330
Frequently asked questions
About Lemont Twp High SchoolWhat is the total enrollment at Lemont Twp High School?
Lemont Twp High School enrolls approximately 1,284 students in grades 09-12.
What age range does Lemont Twp High School serve?
Lemont Twp High School serves students from grade 09 through grade 12.
How many students per teacher at Lemont Twp High School?
Approximately 15.0:1 students per teacher at Lemont Twp High School.
How diverse is Lemont Twp High School?
Lemont Twp High School reports a student body of 80% White, 12% Hispanic, 1% Black, 4% Asian, 3% Two or more.
Who oversees Lemont Twp High School?
Lemont Twp High School is overseen by Lemont Twp HSD 210 in Cook County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.