West Oak Intermediate School
School pathway
Test scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)What this means: On the IAR + ISA, Illinois's statewide test, about 36 of every 100 students at this school read and write at grade level and about 30 of 100 do math at grade level. Across all Illinois schools, those numbers are about 51 and 38. Reading and writing scores are up about 15 points since 2023, while math scores are up about 16 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 32% of students here test proficient in math and reading, compared with the roughly 37% 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%.
7-year change
SY 2017-18 vs SY 2024-25About 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
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Related schools
- West Oak Middle SchoolMiddle · 280 students
- Diamond Lake SchoolElementary · 262 students
- Mundelein Cons High SchoolHigh · 2,282 students
- Fremont Elem SchoolElementary · 743 students
- Fremont Jr High/Middle SchoolMiddle · 692 students
- Fremont Intermediate SchoolElementary · 651 students
- Carl Sandburg Middle SchoolMiddle · 529 students
- Mechanics Grove Elem SchoolElementary · 486 students
- West Oak Middle School0.0 mi · 280
- Diamond Lake School0.7 mi · 262
- Washington Elem School1.2 mi · 467
- Carl Sandburg Middle School1.8 mi · 529
- Country Meadows Elem School1.8 mi · 439
- Woodlawn Middle School1.9 mi · 632