West Oak Intermediate School, Mundelein IL

Original Research by School Decision on West Oak Intermediate School

West Oak Intermediate School serves grades three through five in Mundelein and is a small school with an enrollment spread across the upper elementary years. The student body is notably diverse: more than two-thirds identify as Hispanic, with the remainder split among white, Asian, Black, and multiracial students. The school is part of Diamond Lake SD 76, which serves the area surrounding Mundelein, a Lake County village with a mixed manufacturing and commercial economy anchored by Medline Industries.

The state assessment data from the 2024-25 school year shows proficiency rates that fall below typical benchmarks. In math, third grade achieved proficiency at roughly one-third of tested students, fourth grade at about the same level, and fifth grade at just over one-fifth. English language arts results are similar across the lower grades, hovering around one-third, with fifth grade slightly higher at just over one-third. Science proficiency for fifth grade sits at about one-third. When compared to the group of districts in Lake County, West Oak's overall proficiency index places it in the bottom quartile, meaning the school's tested achievement is notably lower than the median performance across the county's districts.

Data on free-or-reduced-price lunch eligibility and English learner enrollment are not available, so the family composition and support needs cannot be fully characterized. The school's role in addressing these demographics and any targeted intervention strategies would be worth exploring directly with the district. Graduation rate and attendance data do not apply because the school serves only elementary grades.

Mundelein itself is in active growth, with new residential subdivisions and infill projects near the downtown Metra station underway. The housing market in the area shows mid-range values with modest appreciation, and the broader area has a stable employment base centered on manufacturing, healthcare, and retail. The village has parks, trail systems, and organized recreation, plus library and transit connections to Chicago.

A parent considering West Oak may want to look into further detail with the school about the factors driving the lower proficiency rates, the composition of the student body in terms of language support needs, and any academic support, intervention, or enrichment programs in place. The school operates as a neighborhood elementary building rather than a choice or specialty school, so enrollment is typically determined by residence.

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Academic performance

How students perform on state tests, by grade, set against the district.

Math

Grade 333%

School 33% · District 33%

▼ 13 pts below state median · ▼ 24 pts below county median

Grade 435%

School 35% · District 35%

▼ 1 pts below state median · ▼ 14 pts below county median

Grade 521%

School 21% · District 21%

▼ 9 pts below state median · ▼ 18 pts below county median

English language arts

Grade 334%

School 34% · District 34%

▼ 10 pts below state median · ▼ 21 pts below county median

Grade 437%

School 37% · District 37%

▼ 12 pts below state median · ▼ 20 pts below county median

Grade 537%

School 37% · District 37%

▼ 15 pts below state median · ▼ 28 pts below county median

Science

Grade 534%

School 34% · District 34%

▼ 3 pts below state median · ▼ 14 pts below county median

This schoolDiamond Lake SD 76, same grade

Graduation rate (ACGR) reflects the federally published Adjusted Cohort Graduation Rate for the most recent year available. We refresh this data annually at the close of each academic year in June. The federal source publishes a banded rate (for example, "90-94%") instead of an exact number for cohorts small enough to risk identifying individual students. The state distribution chart, where shown, plots every school in the state with a published rate or band; schools whose rate is federally suppressed are excluded. Where the federal source publishes a band rather than an exact rate, the school is placed within its band using a stable, ID-derived offset, so its position is consistent across visits.