Enrollment
322
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Chicago, IL
Federal NCES profile for Cook Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 25/100.
The verdict
Cook Elem School earns 25/100 on the Resource Investment Index, with class sizes larger than 80% of Illinois schools.
Cook Elem School has class sizes larger than 80% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Cook Elem School ranks #292 of 394 schools in Chicago, IL.
NCES ID 170993000672 Verify on NCES CCD record →
Enrollment
322
Illinois · 2024-25 NCES data
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
16.1:1
vs 14:1 Illinois avg
+15% vs state
How Cook Elem School compares with Illinois and U.S. medians
Slightly above state median
16.1:1 - 2.1 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Cook Elem School's enrollment sits away from the most extreme size bands, but its reported student-teacher ratio is heavier than most Illinois schools. That isolates staffing load as a more useful concern than raw campus size. A high ratio does not establish weak teaching or outcomes, yet it can indicate less adult capacity per enrolled student. The remaining federal indicators show whether support staffing and program access offset that pressure.
Cook Elem School's 49.7% chronic-absence rate is more consequential than a generic staffing label: at least one quarter of students missed 10% or more of school days in the 2021-22 collection. That level can affect instruction, counseling demand, and continuity even when other reported resources look ordinary. The dataset records the scale of absence but not its causes, so it should prompt a current-year question rather than a conclusion about school management.
Cook Elem School is a mid-sized combined-grade school in Chicago, Illinois, enrolling 322 students.
Class loads run somewhat heavier than typical: 16.1:1 puts it in the larger third of Illinois schools by student-teacher ratio.
With 322 students, its enrollment sits close to the Illinois median campus size.
Its Resource Investment Index lands in the lower third of 3,845 scored Illinois schools.
Its student body is predominantly African American (84% of enrollment) (diversity index 28/100).
Counselor coverage runs a bit thin, about 322 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 49.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding City of Chicago Sd 299 spends $22,699 per pupil, 25% above the Illinois average, a better-resourced district than most.
Its district draws 17.4% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Chicago's public schools, it stands alongside Lane Technical High School (4,604 students): Cook Elem School is smaller than that campus by headcount and runs leaner classes (16.1:1 vs 17.8:1).
City of Chicago Sd 299 also operates Lane Technical High School (4,604 students) and Taft High School (4,487 students) alongside Cook Elem School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Cook Elem School on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.1:1 | ▲ 15% | 14:1 | 15.7:1 |
| Enrollment | 322 | top 59% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Largest group: African American at 83.5% of enrollment.
Simpson diversity index - at 28.0, Cook Elem School is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for City of Chicago Sd 299, which includes Cook Elem School.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2022-23 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Lane Technical High School | Larger | No free-lunch data | Higher S:T ratio |
| Taft High School | Larger | No free-lunch data | Similar S:T ratio |
| Curie Metropolitan High School | Larger | No free-lunch data | Similar S:T ratio |
| Kenwood Academy High School | Larger | No free-lunch data | Higher S:T ratio |
| Young Magnet High School | Larger | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Cook Elem School's own figures; each column derives from NCES Common Core of Data.
6 comparable other schools (grades Mixed) serving the same city.
Matched by enrollment size and by staffing ratio across all of Illinois, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Cook Elem School's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Cook Elem School has 322 students enrolled. It is a public school in Chicago, IL.
The student-teacher ratio at Cook Elem School is 16.1:1, which is 15% higher than the Illinois average of 14:1 and 3% higher than the national average of 15.7:1.
The largest demographic group at Cook Elem School is African American at 83.5% of enrollment, in Chicago, IL.
Cook Elem School has a Resource Investment Index of 25/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Cook Elem School ranks #292 of 394 schools in Chicago, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Chicago on the city page.
Besides Cook Elem School, City of Chicago Sd 299 also operates Lane Technical High School (4,604 students), Taft High School (4,487 students), and Curie Metropolitan High School (3,099 students). See the City of Chicago Sd 299 district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error. Data current as of August 2026.
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PlainSchools, “Cook Elem School, Chicago IL.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of August 2026. https://plainschools.com/schools/cook-elem-school-il
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