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SCHOOL COMMUNITY·DIAMOND LAKE SD 76·NCES 171221001474

West Oak Intermediate School

26156 N Acorn Ln, Mundelein, IL 60060 · (847) 970-3544 · Lake County
GRADES 03–05ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL268 STUDENTS
Enrollment
268
Elementary
DISTRICT 265 · STATE 381
Student : Teacher
9.2:1
29 FTE teachers
DISTRICT 8.8:1 · STATE 13.9:1
Free / Reduced Lunch
60%
160 students
DISTRICT 57% · STATE 56%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 3
94
Grade 4
93
Grade 5
81
Student demographics
White
6825%
DISTRICT 23% · STATE 45%
Hispanic
16963%
DISTRICT 65% · STATE 29%
Black
135%
DISTRICT 4% · STATE 16%
Asian
73%
DISTRICT 4% · STATE 6%
Two+
104%
DISTRICT 3% · STATE 5%
Native American
10%
DISTRICT 0% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
13249%
Female
13651%

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Test scores

IAR + ISA 2024-25 . % Proficient (Levels 4-5)
English Language Arts
35.5%
IL avg 51.0% . +14.9pp since 2023
Math
30.1%
IL avg 37.9% . +16.2pp since 2023
Source: IAR + ISA. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
31.6%
composite math + reading, all grades
Predicted
37.0%
based on IL schools with similar FRL share
Beats by
-5.5pp
below demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
268
-24 (-8%) vs 2017
Student : Teacher
9.2:1
was 11.9:1
% White
25%
was 22%
% Hispanic
63%
was 68%
% Black
5%
was 2%
% Asian
3%
was 6%
Source: NCES Common Core of Data

About West Oak Intermediate School

West Oak Intermediate School operates as a close-knit elementary-level community in Mundelein, Illinois, one of the schools within Diamond Lake SD 76. Current enrollment sits at 268 students spanning grades 3 through 5. Enrollment runs roughly 30% leaner than the state mean of about 381.

Within Diamond Lake SD 76, which oversees 3 schools and 810 students, West Oak Intermediate School is one campus in the system.

On the student-mix side, West Oak Intermediate School records that Hispanic students make up the majority at 63%. The remainder consists of 25% White, 5% Black, 4% multiracial, 3% Asian. That is visibly more Hispanic than the county at large, where the share is closer to 25%.

On the income-and-resources front, West Oak Intermediate School shows 29 full-time-equivalent teachers, putting the student-to-teacher ratio at about 9.2:1. The state averages around 13.9:1, so this campus is tighter than the state norm typical. An estimated 60% of students are eligible for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.

After controlling for student poverty, West Oak Intermediate School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 37.0%; this one delivers 31.6%.

Across the wider county, ACS estimates for Lake County put median household income runs about $110,416, 48% of adults hold a bachelor's degree or higher, and roughly 6% of residents live below the federal poverty line. West Oak Intermediate School is one of 214 public schools in Lake County (combined enrollment of about 118,032 students).

Nearest neighbor: West Oak Middle School, around 0.0 miles off. Within five miles, there are 8 other public schools.

West Oak Intermediate School operates from a suburban location.

Trend over the last 7 years. Looking back 7 years, enrollment at West Oak Intermediate School has contracted 8%, going from 292 students in 2018 to 268 in 2025. Over the same period, the Hispanic share fell from 68% to 63%. Class-load math has tightened: from 11.9:1 in 2018 to 9.2:1 in 2025.

On this page, members of the West Oak Intermediate School community share and discuss school events, parent volunteer needs, and clubs. Members of the school community can share what they know.

Lake County at a glance

View full county profile
Population
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

School name
West Oak Intermediate School
District
Diamond Lake SD 76
Address
26156 N Acorn Ln, Mundelein, IL 60060
Phone
(847) 970-3544
County
Lake County
Level
Elementary
Grade range
03–05
Total enrollment
268
Teachers (FTE)
29
Student–teacher ratio
9.2:1
Free/Reduced lunch
160 (60%)
Locale
21-Suburb: Large
NCES ID
171221001474
Charter school
No
Virtual school
No

Related schools

Other schools in Diamond Lake SD 76
Other schools in Mundelein
Nearby schools

Frequently asked questions

About West Oak Intermediate School
How many students attend West Oak Intermediate School?
West Oak Intermediate School enrolls approximately 268 students in grades 03-05.
Is West Oak Intermediate School an elementary, middle, or high school?
West Oak Intermediate School is an elementary school covering grades 03-05.
What is the student-teacher ratio at West Oak Intermediate School?
The student-to-teacher ratio at West Oak Intermediate School is approximately 9.2:1 (29 FTE teachers).
What is the racial breakdown of students at West Oak Intermediate School?
At West Oak Intermediate School, the student body is approximately 25% White, 63% Hispanic, 5% Black, 3% Asian, 4% Two or more.
Who oversees West Oak Intermediate School?
West Oak Intermediate School is overseen by Diamond Lake SD 76 in Lake County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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