1
Enrollment
1,359
High
STATE 834
SCHOOL COMMUNITY·LAKE FOREST CHSD 115·NCES 172178002452
Lake Forest High School
1285 N McKinley Rd, Lake Forest, IL 60045 · (847) 234-3600 · Lake County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,359 STUDENTS
A+
allk12 Grade
Scored higher than 98% of Illinois public high schools
- A+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- ·Beats expectations Not available for this school, so the grade uses the other parts.
- ·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
10.4:1
131 FTE teachers
STATE 13.8:1
Free / Reduced Lunch
,
Title I proxy
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 | 344 | 25% |
| Grade 10 | 319 | 23% |
| Grade 11 | 338 | 25% |
| Grade 12 | 358 | 26% |
Student demographics
40%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
Where Lake Forest High School ranks
Among high schools| Measure | This school | In Illinois | In Lake County |
|---|---|---|---|
| Enrollment ranked largest first | 1,359 | #165 of 708 | #16 of 21 |
| Students per teacher ranked fewest first | 10.4:1 | #26 of 528 | #1 of 21 |
| Diversity index ranked most diverse first | 39.8% | #248 of 537 | #17 of 21 |
| Enrollment change since 2017-18 ranked steepest decline first | -15.6% | #96 of 358 | #3 of 13 |
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
1,359
-142 (-9%) vs 2020
+25% since 1990-91, when it was 1,086
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 | 1,359 | 131.1 | 10.4:1 | N/A |
| 2023-24 | 1,375 | 124.2 | 11.1:1 | N/A |
| 2022-23 | 1,438 | 129.9 | 11.1:1 | N/A |
| 2020-21 | 1,501 | N/A | N/A | N/A |
| 2017-18 | 1,611 | 129.4 | 12.4:1 | 2% (33) |
| 2015-16 | 1,696 | 122 | 13.9:1 | 3% (57) |
| 2010-11 | 1,729 | 127 | 13.6:1 | 0% (0) |
| 2000-01 | 1,628 | 114 | 14.3:1 | N/A |
| 1990-91 | 1,086 | 83 | 13.1:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Lake Forest High School.
Since 2017-18: students down 16% (1,611 to 1,359); teachers up 1% (129.4 to 131.1).
About Lake Forest High School
Located in Lake Forest, Illinois, Lake Forest High School is a large high school. It enrolls 1,359 students in 2024-25. The grades offered are 9 through 12. It has 63% more students than the average for high schools in Illinois (about 834).
Lake Forest High School is listed under Lake Forest CHSD 115 in federal data.
About 76% of the student body at Lake Forest High School is White. Other groups make up 11% Hispanic, 6% Asian, and 5% multiracial. County-wide, 61% of Lake County residents are White. A diversity index of 40% means there is a 40% chance two randomly chosen students at Lake Forest High School are from different groups.
Lake Forest High School has a student-to-teacher ratio of 10.4:1, with 131.1 full-time-equivalent teachers. The average for high schools in Illinois is 13.8:1, so this school has fewer students per teacher.
On the allk12 Grade, Lake Forest High School lands at A+, ahead of 98% of Illinois public high schools.
The county, Lake County, is where the school is located. The median household earns about $110,416 a year, 48% of adults hold a bachelor's degree or higher, and about 6% of residents live below the federal poverty line. Counting Lake Forest High School, Lake County has 214 public schools.
A public school about 0.2 miles away, Sheridan Elementary School, is the closest to Lake Forest High School. The count of other public schools within five miles is at least 8.
The school is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more, according to its NCES locale (Suburb: Large).
In 2020-21, Lake Forest High School enrolled 1,501 students. By 2024-25, that number had fallen to 1,359.
This page is set up for the Lake Forest High School community to discuss homework, tutoring, and testing dates. Current and former families are welcome to add their experience.
Lake County at a glance
View full county profilePopulation
714,223
Census ACS
Median income
$110,416
Household, ACS
Bachelor's+
48%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
214
118,032 students
Quick facts
Related schools
Other schools in Lake Forest
- Deer Path Middle School EastMiddle · 375 students
- Deer Path Middle School WestMiddle · 361 students
- Cherokee Elementary SchoolElementary · 343 students
- Everett Elementary SchoolElementary · 308 students
- Sheridan Elementary SchoolElementary · 265 students
- Rondout Elementary SchoolElementary · 151 students
Other Lake Forest High schools
One other US public school is named Lake Forest High. Lake Forest High School is the largest of the 2.
- Lake Forest High SchoolFelton, DE · 951 students
Nearby schools
- Sheridan Elementary School0.2 mi · 265
- Lake Bluff Middle School0.8 mi · 305
- Deer Path Middle School East1.2 mi · 375
- Deer Path Middle School West1.2 mi · 361
- Lake Bluff Elementary School1.6 mi · 572
- Cherokee Elementary School2.7 mi · 343
Frequently asked questions
About Lake Forest High SchoolWhat is the total enrollment at Lake Forest High School?
Lake Forest High School enrolls approximately 1,359 students in grades 09-12.
What age range does Lake Forest High School serve?
Lake Forest High School serves students from grade 09 through grade 12.
How many teachers does Lake Forest High School have?
Lake Forest High School employs 131 FTE teachers, for a student-to-teacher ratio of 10.4:1.
How diverse is Lake Forest High School?
Lake Forest High School reports a student body of 76% White, 11% Hispanic, 1% Black, 6% Asian, 5% Two or more.
Who oversees Lake Forest High School?
Lake Forest High School is overseen by Lake Forest CHSD 115 in Lake County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.