Lee R Foster Elem 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 64 of every 100 students at this school read and write at grade level and about 53 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 11 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 55% of students here test proficient in math and reading, compared with the roughly 43% 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 Lee R Foster Elem School
Located at 5931 School St, in Oak Forest, Illinois, Lee R Foster Elem School is a moderately sized elementary-level community that instructs 397 students (grades 1 through 5), part of Forest Ridge SD 142.
Within Forest Ridge SD 142, which oversees 4 schools and 1,539 students, Lee R Foster Elem School is one campus in the system.
For racial and ethnic makeup, Lee R Foster Elem School records that the most-represented group is White (50%), with the rest of the student body spread across multiple groups. Beyond that, the school logs 33% Hispanic, 12% Black, 3% multiracial, 3% Asian.
Looking at the economic backdrop, On paper, Lee R Foster Elem School has 29 full-time-equivalent teachers, translating to a class-load average of around 13.9:1. That tracks the state average closely. An estimated 49% of students are eligible for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. That share is below Cook County's rate of about 66%.
On a demographically-adjusted basis, Lee R Foster Elem School tracks the demographic baseline. The model predicts 43.4% given the school's FRL share; actual proficiency is 55.3%.
Across the wider county, ACS estimates for Cook County put median household earnings sit near $83,498, 43% of adults hold a bachelor's degree or higher, and roughly 10% of residents live below the federal poverty line. Across Cook County's 1406 public schools (combined enrollment of about 697,934 students), Lee R Foster Elem School is one campus in the mix.
The closest other public school is Jack Hille Middle School, roughly 0.3 miles away. 8 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Lee R Foster Elem School comes 2nd of 6 in the immediate cluster, above the nearby-schools average of 46.3%.
The campus sits in a bedroom-community setting.
Five-year trend. Looking back 7 years, enrollment at Lee R Foster Elem School has remained close to its prior level, going from 403 students in 2018 to 397 in 2025. The White share of enrollment shrank from 63% to 50% over that span. The student-to-teacher ratio fell from 16.8:1 in 2018 to 13.9:1 today.
Inside the community feed, the page collects discussion, questions, and updates around sports schedules, lunch menu changes, and school spirit week. Posting is open to anyone connected to the school.
Cook County at a glance
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Related schools
- Jack Hille Middle SchoolMiddle · 490 students
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- Jack Hille Middle SchoolMiddle · 490 students
- Walter F Fierke Ed CenterElementary · 443 students
- Kerkstra Elem SchoolElementary · 407 students
- Scarlet Oak Elementary SchoolElementary · 249 students
- Jack Hille Middle School0.3 mi · 490
- Scarlet Oak Elementary School0.5 mi · 249
- Oak Forest High School0.5 mi · 1,329
- Walter F Fierke Ed Center0.8 mi · 443
- Kerkstra Elem School1.0 mi · 407
- Ridge Early Childhood Center1.1 mi · 245