Acero Chtr - Octavio Paz Elem Sch
Test scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)What this means: On the IAR + ISA, Illinois's statewide test, about 27 of every 100 students at this school read and write at grade level and about 28 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 14 points since 2023, while math scores are up about 15 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 25% of students here test proficient in math and reading, compared with the roughly 17% 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 Acero Chtr - Octavio Paz Elem Sch
Acero Chtr - Octavio Paz Elem Sch, an one-room-style elementary school in Chicago, Illinois, one of the schools within Chicago Public Schools Dist 299, enrolls 98 students, covering grades K through 8. Compared to the state average of about 381 students per school, that is 74% leaner than typical.
Chicago Public Schools Dist 299 comprises 622 schools with combined enrollment of 324,396 students; Acero Chtr - Octavio Paz Elem Sch is among them.
Demographically, Acero Chtr - Octavio Paz Elem Sch shows that 98% of students identify as Hispanic, making the school strongly Hispanic-majority. The remainder reads as 2% Black. By comparison, Cook County as a whole is about 27% Hispanic, so the school skews noticeably more Hispanic than its surroundings.
On the income-and-resources front, Acero Chtr - Octavio Paz Elem Sch records 13 full-time-equivalent teachers, putting the student-to-teacher ratio at about 7.8:1. Statewide, the average ratio sits near 13.9:1, putting Acero Chtr - Octavio Paz Elem Sch tighter than the state norm the norm. Around 95% of the student body qualifies for free or reduced-price meals, which schools and policymakers use as a rough income-mix signal. By comparison, Cook County runs at roughly 66%, so the school's eligibility rate is above the surrounding baseline.
On a residual basis (actual vs predicted given the student mix), Acero Chtr - Octavio Paz Elem Sch sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 16.7%; this one delivers 24.8%.
In the broader community, the surrounding county (Cook County) logs that median household income runs about $83,498, roughly 43% of adults have completed at least a four-year degree, and census figures put the poverty rate at about 10%. Across Cook County's 1406 public schools (combined enrollment of about 697,934 students), Acero Chtr - Octavio Paz Elem Sch is one campus in the mix.
The closest other public school is Hammond Elem School, roughly 0.3 miles away. Within five miles, there are 8 other public schools. Among the 9 schools in that immediate cluster with test data (this one included), Acero Chtr - Octavio Paz Elem Sch ranks 1st on composite proficiency, above the local average of 14.4%.
The school occupies a metropolitan site. Acero Chtr - Octavio Paz Elem Sch is a charter school, which puts it inside the public-school system but outside the standard district-managed model.
Trend over the last 7 years. Over the past 7-year window, the student count decreased 74%: 370 students in 2018 compared to 98 in 2025. Hispanic enrollment moved from 92% to 98% across the same window. Class-load math has tightened: from 17.6:1 in 2018 to 7.8:1 in 2025.
On allk12, the feed for Acero Chtr - Octavio Paz Elem Sch typically covers science fair prep, picture-day reminders, and bus-route questions. Posting is open to anyone connected to the school.
Cook County at a glance
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