Enrollment
432
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Chicago, IL
Federal NCES profile for Acero Chtr Sor Juana Ines De La, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 27/100.
The verdict
Acero Chtr Sor Juana Ines De La earns 27/100 on the Resource Investment Index, even as it posts class sizes smaller than 96% of Illinois schools.
Acero Chtr Sor Juana Ines De La has class sizes smaller than 96% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Acero Chtr Sor Juana Ines De La ranks #254 of 394 schools in Chicago, IL.
NCES ID 170993006508 Verify on NCES CCD record →
Enrollment
432
Illinois · 2024-25 NCES data
Teachers (FTE)
51.0
Federal CCD staff survey
Students per teacher
8.5:1
vs 14:1 Illinois avg
-39% vs state
How Acero Chtr Sor Juana Ines De La compares with Illinois and U.S. medians
Smaller classes than state median
8.5:1 - 5.5 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
Acero Chtr Sor Juana Ines De La is a mid-sized charter combined-grade school in Chicago, Illinois, enrolling 432 students.
Classes run notably small here: at 8.5:1, Acero Chtr Sor Juana Ines De La is leaner than roughly 96% of Illinois schools and 39% under the state's 14:1 norm, more adult attention per pupil than most peers.
With 432 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 led by African American (51%) and Hispanic or Latino (42%) (diversity index 56/100).
Counselor access is stretched at roughly 432 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 52.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding City of Chicago Sd 299 spends $21,050 per pupil, 24% 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): Acero Chtr Sor Juana Ines De La is smaller than that campus by headcount and runs leaner classes (8.5:1 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 Acero Chtr Sor Juana Ines De La.
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
Acero Chtr Sor Juana Ines De La on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 8.5:1 | ▼ 39% | 14:1 | 15.7:1 |
| Enrollment | 432 | top 40% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: African American at 50.9% of enrollment.
Simpson diversity index - at 56.2, Acero Chtr Sor Juana Ines De La is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for City of Chicago Sd 299, which includes Acero Chtr Sor Juana Ines De La.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 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 | Higher S:T ratio |
| Curie Metropolitan High School | Larger | No free-lunch data | Higher 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 | Higher S:T ratio |
Comparisons are relative to Acero Chtr Sor Juana Ines De La'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 Acero Chtr Sor Juana Ines De La'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.
Acero Chtr Sor Juana Ines De La has 432 students enrolled. It is a public school in Chicago, IL.
The student-teacher ratio at Acero Chtr Sor Juana Ines De La is 8.5:1, which is 39% lower than the Illinois average of 14:1 and 46% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Acero Chtr Sor Juana Ines De La is African American at 50.9% of enrollment, in Chicago, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 56.2/100.
Acero Chtr Sor Juana Ines De La has a Resource Investment Index of 27/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Acero Chtr Sor Juana Ines De La ranks #254 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.
Acero Chtr Sor Juana Ines De La earns 27/100 on the Resource Investment Index, even as it posts class sizes smaller than 96% of Illinois schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Acero Chtr Sor Juana Ines De La, 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, or report a data error. Data current as of June 2026.
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PlainSchools, “Acero Chtr Sor Juana Ines De La, Chicago IL.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/acero-chtr-sor-juana-ines-de-la-il
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