Glenbard South High School
Glen Ellyn · IL · Glenbard Twp HSD 87 · Public
Similar nearby schools
Most similar nearby schools
Hinsdale South High School → Lemont Twp High School → Elmwood Park High School → Wheaton Warrenville South H S → Fenton High School → Wheaton North High School → Proviso Math and Science Academy → Comm H S Dist 99 - North H S →📋 At a glance
- 📚 17 AP courses offered — Elite
- ✅ Dual-enrollment program (college credit while in HS)
- 🔢 5 calculus classes · 11 physics · 16 chemistry
- 🎓 AP rigor: 90th percentile nationally
- 📝 SAT/ACT participation: 80th percentile by test-taker volume
Composed from federal CRDC offerings, EDFacts ACGR, and other public data. Full breakdowns below.
How Glenbard South High School compares for families
Standout academic depth by national standards.
- ▸ StatewideAP rigor in the top 10% nationally with 17 AP courses.
- ▸ LocallyIL sits right at the US average on NAEP 8th-grade math — local school quality will set your kid apart.
- ▸ vs Similar SchoolsThe closest comparables nearby: Hinsdale South High School, Lemont Twp High School, Elmwood Park High School and 5 more. See the sidebar to compare side-by-side.
For Parents
Follow Glenbard South High School
Get an email when Glenbard South High School's numbers change — new admissions results, enrollment shifts, test scores. A few updates a year, no spam.
🎓 Academic rigor
AP + advanced-course offerings
Elite — exceptional AP + advanced course breadth
90th percentile nationally
Source: federal Civil Rights Data Collection (CRDC 2020-21). CRDC reports what's offered + enrolled — it doesn't collect AP exam pass rates (College Board owns that data and doesn't release it school-level).
SAT / ACT participation
CRDC federal data · 2020-2180th percentile by test-taker volume
Source: federal Civil Rights Data Collection (CRDC 2020-21). Volume — not score — is what's reported here. A higher count means more students at this school are entering the college admissions pipeline. Note: 2020-21 was COVID-disrupted; some districts (especially those that stayed remote longer) report unusually low or zero takers.
👩🏫 Teacher workforce · federal CRDC
Teacher experience & reliability
Source: federal Civil Rights Data Collection (CRDC 2017-18 — the most recent vintage that publishes per-school teacher quality fields; the 2020-21 sweep had them suppressed). "Inexperienced" = teachers in their first or second year. "Chronic absence" = teachers absent 10+ days/year.
🏛️ Federal Title I context
Mixed-income school
Below Title I eligibility threshold (FRPL < 35%)
25-34% of students qualify for free/reduced lunch. Below the federal Title I threshold but a meaningful share of the population is income-eligible for free lunch.
Source: NCES Common Core of Data, free/reduced-price lunch eligibility. The actual Title I designation is a district decision and may differ from eligibility — but the federal eligibility math is what we show here. We don't claim to assert whether the district formally chose to enroll this school in Title I.
🏛️ Your state's public flagship
University of Illinois Urbana-Champaign
The in-state tuition gap is the flagship's biggest draw — most in-state families pay far less than the out-of-state sticker. Average net price after aid runs about $14,355/yr. Admission odds depend on your student's GPA and test scores, not which high school they attend.
Source: IPEDS admissions, tuition & enrollment + College Scorecard net price. Flagship = the state's primary public research university.
Counselor capacity
Source: U.S. Department of Education, Civil Rights Data Collection 2020-2021. Counselor ratio = the school's most recent total enrollment ÷ counselor FTE. The American School Counselor Association (ASCA) recommends a 250:1 maximum; the US national median across schools with on-staff counselors is roughly 430:1.
Enrollment trend & projection
Total enrollment + grade 12, NCES Common Core of Data (2021–2024).
If the recent trend holds…
At its recent rate of -0.5%/year, projecting from 2024's 1,090 students:
≈ 29 fewer students by 2029 — a real revenue/relevance risk worth getting ahead of.
An extrapolation of the recent trajectory, not a forecast of the school's plans; ignores one-off shocks.
Revenue at risk
At $24,884 per student in district revenue, the 29 students projected to be lost by 2029 represent ≈ $721,636/year in funding at risk.
District total revenue ÷ enrollment, NCES F-33. Public funding largely follows enrollment, so a shrinking class is a recurring budget hit.
Most similar nearby high schools
The schools most like this one — same type, blended on distance and size — and where their enrollment is heading. These are the schools families here weigh against each other.
| School | Type | Miles | HS enrollment | Trend |
|---|---|---|---|---|
| Hinsdale South High School Darien |
Public | 8.1 | 1,370 | +1.5% |
| Lemont Twp High School Lemont |
Public | 11.6 | 1,284 | -6.3% |
| Elmwood Park High School Elmwood Park |
Public | 13.9 | 1,015 | +2.3% |
| Wheaton Warrenville South H S Wheaton |
Public | 4.0 | 1,864 | -0.1% |
| Fenton High School Bensenville |
Public | 10.5 | 1,396 | -3.3% |
| Wheaton North High School Wheaton |
Public | 4.3 | 1,863 | -4.8% |
| Proviso Math and Science Academy Forest Park |
Public | 12.5 | 925 | +6.7% |
| Comm H S Dist 99 - North H S Downers Grove |
Public | 3.5 | 2,082 | -3.5% |