Washington-McKinley Elem Sch
School pathway
Test scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)What this means: On the IAR + ISA, Illinois's statewide test, about 30 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 4 points since 2023, while math scores are up about 8 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 29% of students here test proficient in math and reading, well above the roughly 15% typical for Illinois schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 14 points, placing it in Illinois's top 10%.
7-year change
SY 2017-18 vs SY 2024-25About Washington-McKinley Elem Sch
Set in Chicago Heights, Illinois, Washington-McKinley Elem Sch is a tight-knit K-5 school, run under Chicago Heights SD 170. It educates 286 students across grades pre-K through 5. That puts it 25% leaner than the typical public school in Illinois, which averages around 381 students.
Chicago Heights SD 170 runs 10 schools in total, collectively educating 2,674 students. Washington-McKinley Elem Sch is one of those campuses.
Looking at the student body, Washington-McKinley Elem Sch logs that 67% of the student body identifies as Hispanic. The remainder consists of 29% Black, 4% White. By comparison, Cook County as a whole is about 27% Hispanic, so the school skews meaningfully more Hispanic than its surroundings.
In terms of school funding signals, On paper, Washington-McKinley Elem Sch has 25 full-time-equivalent teachers, translating to a class-load average of around 11.4:1. That figure is tighter than the state norm's 13.9:1 average. An estimated 98% of students are eligible for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. That share is above Cook County's rate of about 66%.
On a demographically-adjusted basis, Washington-McKinley Elem Sch ranks in the top 10% of Illinois public schools. The BeatsExpectations model, a per-state regression of composite proficiency on FRL share, predicts schools with this student profile to land around 14.8%; Washington-McKinley Elem Sch posts 28.6%, +13.8 points above that line.
Around the school, census data for Cook County shows median household income runs about $83,498, roughly 43% of adults have completed at least a four-year degree, and roughly 10% of residents live below the federal poverty line. In all, Cook County runs 1406 public schools (combined enrollment of about 697,934 students), of which Washington-McKinley Elem Sch is one.
The closest other public school is Lincoln Elem School, roughly 0.6 miles away. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts Washington-McKinley Elem Sch at 6th of 9; the average score across the group is 31.1%.
The campus sits in a suburban setting.
Five-year trend. Over the past 7-year window, the student count edged down 53%: 615 students in 2018 compared to 286 in 2025. Class-load math has grew: from 9.5:1 in 2018 to 11.4:1 in 2025.
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Cook County at a glance
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