Glenbrook South High School
Glenview · IL · Glenbrook HSD 225 · Public
Similar nearby schools
Most similar nearby schools
Glenbrook Evening High School → Glenbrook Off Campus → Glenbrook North High School → Joseph Academy → Christian Heritage Academy → Maryville Jen School → Northridge Preparatory School → Centerview Therapeutic School →📋 At a glance
- 📚 27 AP courses offered — Elite
- ✅ Dual-enrollment program (college credit while in HS)
- 🔢 16 calculus classes · 42 physics · 44 chemistry
- 🎓 AP rigor: 90th percentile nationally
- 📝 SAT/ACT participation: Top 0.3% by test-taker volume
Composed from federal CRDC offerings, EDFacts ACGR, and other public data. Full breakdowns below.
How Glenbrook South High School compares for families
Standout academic depth by national standards.
- ▸ StatewideAP rigor in the top 10% nationally with 27 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: Glenbrook Evening High School, Glenbrook Off Campus, Glenbrook North High School and 5 more. See the sidebar to compare side-by-side.
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🎓 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 · 2020-21Top 0.3% 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.
Chronic absenteeism
Why this matters to enrollment: Chronic absence is the strongest early indicator of dropout, transfer-out, and family disengagement. A school's absenteeism trend forecasts its enrollment trend 1-3 years out. For school leaders: an Enrollment Trend Audit traces this dynamic forward →
Source: U.S. Department of Education, Civil Rights Data Collection 2020–2021. Rate = students chronically absent ÷ 2024 total enrollment.
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 -1.7%/year, projecting from 2024's 2,923 students:
≈ 244 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 $40,289 per student in district revenue, the 244 students projected to be lost by 2029 represent ≈ $9,830,516/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.
Nearby high schools — the local competition
The closest high schools families here also consider, and where their enrollment is heading.
| School | Type | Miles | HS enrollment | Trend |
|---|---|---|---|---|
| Glenbrook Evening High School Glenview |
Public | 0.1 | — | — |
| Glenbrook Off Campus Glenview |
Public | 0.4 | — | — |
| Glenbrook North High School Northbrook |
Public | 1.8 | 2,111 | +2.9% |
| Joseph Academy Des Plaines |
Private | 2.6 | 23 | — |
| Christian Heritage Academy Northfield |
Private | 2.8 | 368 | +35.3% |
| Maryville Jen School Des Plaines |
Private | 2.9 | 29 | — |
| Northridge Preparatory School Niles |
Private | 3.2 | 321 | +19.3% |
| Centerview Therapeutic School Northbrook |
Private | 3.5 | 11 | — |