Community prompt from u/allk12. Replies below.
Prairie Oak 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 50 of every 100 students at this school read and write at grade level and about 41 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 17 points since 2023, while math scores are up about 17 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 40% of students here test proficient in math and reading, compared with the roughly 30% 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 Prairie Oak School
Prairie Oak School operates as a big primary school in Berwyn, Illinois, part of Berwyn North SD 98. Current enrollment sits at 698 students spanning grades pre-K through 5. That puts it 83% bigger than the typical public school in Illinois, which averages around 381 students.
Across the 4 schools in Berwyn North SD 98 (2,434 students total), Prairie Oak School accounts for its share of the district's footprint.
On demographics, Prairie Oak School lists that 77% of the student body identifies as Hispanic. Other groups include 14% Black, 6% White, 2% multiracial. That is visibly more Hispanic than the county at large, where the share is closer to 27%.
In terms of school funding signals, Prairie Oak School lists 52 full-time-equivalent teachers, putting the student-to-teacher ratio at about 13.5:1. The state averages about 13.9:1, putting this campus right in line with peers. About 72% of enrolled students meet the income threshold for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator.
After controlling for student poverty, Prairie Oak School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 29.9%, the actual is 39.8%, a residual of +9.9 points.
Zooming out to the county, ACS estimates for Cook County put the typical household earns roughly $83,498 per year, 43% of adults hold a bachelor's degree or higher, and roughly 10% of residents live below the federal poverty line. Prairie Oak School is one of 1406 public schools in Cook County (combined enrollment of about 697,934 students).
Nearest neighbor: Jefferson Elem School, around 0.4 miles off. Counting just inside five miles, 8 other public schools cluster around Prairie Oak School. On composite proficiency, Prairie Oak School comes 5th of 8 in the immediate cluster, beneath the nearby-schools average of 44.4%.
The school occupies a bedroom-community site.
Five-year trend. Looking back 7 years, enrollment at Prairie Oak School has ticked down 12%, going from 795 students in 2018 to 698 in 2025. The student-to-teacher ratio tightened from 16.0:1 in 2018 to 13.5:1 today.
On the community side, posts here usually surface around enrollment questions, classroom assignments, and PTA news. Members of the school community can share what they know.
Cook County at a glance
View full county profileQuick facts
Related schools
- Lincoln Middle SchoolMiddle · 793 students
- Karel Havlicek Elem SchoolElementary · 490 students
- Jefferson Elem SchoolElementary · 453 students
- J Sterling Morton West High SchHigh · 3,374 students
- Lincoln Middle SchoolMiddle · 793 students
- Freedom Middle SchoolMiddle · 504 students
- Karel Havlicek Elem SchoolElementary · 490 students
- Jefferson Elem SchoolElementary · 453 students
- Heritage Middle SchoolMiddle · 447 students
- Jefferson Elem School0.4 mi · 453
- Lincoln Middle School0.4 mi · 793
- Karel Havlicek Elem School0.5 mi · 490
- Abraham Lincoln Elem School0.5 mi · 580
- Betsy Ross Elem School0.7 mi · 138
- Irving Elem School0.7 mi · 509