# Crystal Lake South High School

*Machine-readable school profile — served at https://us.il.whatschool.ai/en/il/school/crystal-lake-south-high-school-crystal-lake/llm*

Full profile (human-readable): https://us.il.whatschool.ai/en/il/school/crystal-lake-south-high-school-crystal-lake

---

## Core identification
- **NCES School ID**: `171137001368`
- **School name**: Crystal Lake South High School
- **Location**: Crystal Lake, IL 60014
- **Address**: 1200 S McHenry Ave
- **District**: CHSD 155 (LEAID `1711370`)
- **Sector**: Public
- **School type**: Regular
- **School level**: High
- **Grade range**: 9–12
- **Coordinates**: 42.21076, -88.34044
- **Phone**: (815)455-3860
- **Wikidata QID**: Q5191262 — Wikipedia: https://en.wikipedia.org/wiki/Crystal_Lake_South_High_School
- **Founded**: 1978

## Enrollment (2024)
- **Students**: 1,279
- **Teachers (FTE)**: 77
- **Student-teacher ratio**: 16.6:1
- **Free/reduced lunch**: 32.1%

## State accountability rating
- **System**: IL Report Card
- **Year**: 2025
- **Overall rating**: Commendable
- **Indicators**:
  - overall: Commendable

## Academic performance (state assessments)
### 2025
- **Overall (IL Report Card)**: 68.0% proficient

## Graduation rates
- **2024**: 97.1% (cohort of 339)

## SAT/ACT participation (2020)
- **SAT/ACT takers**: 661

## Attendance
- **2020**: chronic absence 15.2% (214 students) [source: crdc_2020]

## Discipline (latest CRDC year)
- **Year**: 2020
- **In-school suspensions**: 4
- **Out-of-school suspensions**: 0
- **Expulsions**: 0

## Demographics (2023)
- **White**: 0.3%
- **Hispanic/Latino**: 18.2%
- **Black/African American**: 3.4%
- **Asian**: 2.9%
- **American Indian/Alaska Native**: 74.8%
- **Pacific Islander**: 0.0%
- **Two or more races**: 0.4%
- **Free/reduced lunch eligible**: 30.6%

## Inclusion — IDEA & English Learners (2020)
- **Students with IEP (IDEA)**: 11.8% — 167 students


## Disability category breakdown (CRDC)
- **Other Health Impairment**: 55 students
- **Specific Learning Disability**: 49 students
- **Emotional Disturbance**: 39 students
- **Autism**: 21 students
- **Intellectual Disability**: 19 students
- **Multiple Disabilities**: 6 students
- **Speech/Language Impairment**: 5 students
- **Visual Impairment**: 3 students
- **Hearing Impairment**: 2 students
- **Orthopedic Impairment**: 1 students
- **Traumatic Brain Injury**: 1 students

## Programs & enrichment
- Advanced Placement (AP)

## Finance
### School-level (ESSA 2023-24)
- **Total per-pupil expenditure**: $20,217
- **Federal share**: $578
- **State + local share**: $19,639
### District F-33 (2022)
- **District per-pupil revenue**: $24,921,936
- **Federal share**: 5.6%
- **State share**: 31.9%
- **Local share**: 62.5%
- **Instructional spending per pupil**: $13,703,823

## Neighbourhood (ACS 2019-2023)
- **Median household income**: $109,127
- **Poverty rate**: 2.4%
- **Bachelor's degree or higher**: 44.2%
- **Unemployment**: 3.4%
- **Median gross rent**: $1,848
- **Foreign-born residents**: 4.2%
- **Single-parent households**: 13.4%

## Environmental context
- **Nearest Superfund (NPL)**: 7.6 miles (WOODSTOCK MUNICIPAL LANDFILL)
- **Toxic Release Inventory sites within 1 mile**: 0
- **TRI sites within 5 miles**: 23
- **Nearest brownfield**: 8.47 miles (CAFT METAL SPINNING)

### Water safety
- **Public water system**: CRYSTAL LAKE
- **SDWA health violations (10 yr)**: 0
- **Acute violations (10 yr)**: 0

### Air quality
- **PM2.5 annual average**: 7.61297 μg/m³ (EPA std: 9)
- **Nearest monitor**: 5.1 miles

## Nearby schools performing better

### chronic absence
- **Coventry Elem School** — 0.8 mi away, 9.27% (this school: 15.18%)
- **Canterbury Elem School** — 1.1 mi away, 14.32% (this school: 15.18%)
- **South Elem School** — 1.2 mi away, 8.56% (this school: 15.18%)
- **Indian Prairie Elem School** — 1.3 mi away, 8.64% (this school: 15.18%)
- **Woods Creek Elementary School** — 1.3 mi away, 4.12% (this school: 15.18%)

## Related data feeds
- **Profile (human)**: https://us.il.whatschool.ai/en/il/school/crystal-lake-south-high-school-crystal-lake
- **Performance**: https://us.il.whatschool.ai/en/il/school/crystal-lake-south-high-school-crystal-lake/performance
- **Finance**: https://us.il.whatschool.ai/en/il/school/crystal-lake-south-high-school-crystal-lake/finance
- **Demographics**: https://us.il.whatschool.ai/en/il/school/crystal-lake-south-high-school-crystal-lake/demographics
- **Inclusion**: https://us.il.whatschool.ai/en/il/school/crystal-lake-south-high-school-crystal-lake/inclusion
- **Context (neighbourhood)**: https://us.il.whatschool.ai/en/il/school/crystal-lake-south-high-school-crystal-lake/context
- **Attendance**: https://us.il.whatschool.ai/en/il/school/crystal-lake-south-high-school-crystal-lake/attendance
- **Discipline**: https://us.il.whatschool.ai/en/il/school/crystal-lake-south-high-school-crystal-lake/discipline
- **Outcomes**: https://us.il.whatschool.ai/en/il/school/crystal-lake-south-high-school-crystal-lake/outcomes
- **Workforce**: https://us.il.whatschool.ai/en/il/school/crystal-lake-south-high-school-crystal-lake/workforce

---
*Source: US Dept of Education CCD, EDFacts, CRDC, F-33; US Census ACS; EPA SDWIS, TRI, NPL, AQS; state DOE portals (CA CDE, TX TEA, FL DOE, NY NYSED, IL ISBE, WA OSPI). Aggregated by WhatSchool.ai.*

*Canonical cross-domain architecture: WhatSchool.ai · Spill.org · CourseMap.org · WhatCareer.net*