- Enrollment
- 1,843
- Students per teacher
- 12.7:1
- Resource Index
- 42/100
High school (grades 9-12) · Dolton, IL
Thornridge High School
Federal NCES profile for Thornridge High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 32/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 173897003954
👥 S:T ratio 46
🌟 Gifted program 30
🎓 Counselors 52
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Thornridge High School earns 32/100 on the Resource Investment Index, with class sizes near the Illinois median.
- #2 of 9
- public schools in Dolton · Resource Index
- 32
- Resource Index · Typical
- 13.5:1
- students per teacher
- 969
- students enrolled
Thornridge High School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Thornridge High School ranks #2 of 9 public schools in Dolton, IL.
School address
District: Thornton Twp Hsd 205 · Illinois
NCES ID 173897003954 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-79 students YoY
Thornridge High School shrank from 1,057 students in 2022-23 to 978 in 2023-24 (-7.5%).
Teacher FTE lost 72.0 → 63.3 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Shrinking CCD campus
-79 students YoY 173897003954 · Dolton, IL High · MID · TRAD
969 enr · 13.5:1 · RII 32
Nearest enrollment peer: Thornwood High School (1,843 students)
Thornridge High School shrank from 1,057 students in 2022-23 to 978 in 2023-24 (-7.5%). Teacher FTE lost 72.0 → 63.3 across the same CCD years. Read with this school → · District book → · Illinois schools → · Find another →
Thornridge High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Thornwood High
Thornwood High School
1,843 students
- Thornton Towns
Thornton Township High School
1,697 students
- This school
Thornridge High School
969 students
What this shows Thornridge High School reports 969 students on the CCD universe file.
How Thornridge High School compares
Thornridge High School is a shrinking campus on CCD: ratios and free-lunch share vs Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.5:1 | ▼ 4% | 14:1 | 15.7:1 |
| Enrollment | 969 | top 7% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.5:1
Leaner classes than 62% of US schools, a middle-of-the-pack class size.
969
Bigger than 91% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Staffing depth
13.5:1
students per teacher
- 4% below state mean
Top 49% in Illinois - lower ratio than 51% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
92.3%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$28,504
per pupil, district-wide
- above Illinois avg of $18,196
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors4.0 FTE
Per 242 students, the combined health-and-guidance staffing load for this school.
Discipline context
2
in-school suspensions + 271 out-of-school
Suspension rate: 0.2 per 100 students. Combined in-school and out-of-school rate: 28.2 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
African American 89.0%
Hispanic or Latino 8.3%
Two or More 2.1%
White 0.5%
American Indian / Alaska Native 0.2%
Largest group: African American at 89.0% of enrollment.
Student-body diversity index 20.1/100
Simpson diversity index - at 20.1, Thornridge High School is less mixed than the Illinois school average of 38.9.
Programs
AP courses offered 8
District finance for Thornton Twp Hsd 205 reports $28,504 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Thornridge High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Thornwood High School | Larger | No free-lunch data | Similar S:T ratio |
| Thornton Township High School | Larger | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Thornridge High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,697
- Students per teacher
- 14.5:1
- Resource Index
- 45/100
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~969 students)
Similar student-teacher ratio (~13.5:1)
Frequently asked questions about Thornridge High School
How many students attend Thornridge High School?
Thornridge High School has 969 students enrolled. It is a high school in Dolton, IL. CCD year-over-year: 1,057 (2022-23) → 978 (2023-24), down 79.
What is the student-teacher ratio at Thornridge High School?
The student-teacher ratio at Thornridge High School is 13.5:1, which is 4% lower than the Illinois average of 14:1 and 14% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Thornridge High School?
The largest demographic group at Thornridge High School is African American at 89.0% of enrollment, in Dolton, IL.
What is the Resource Investment Index for Thornridge High School?
Thornridge High School has a Resource Investment Index of 32/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Thornridge High School rank among public schools in Dolton?
By Resource Investment Index, Thornridge High School ranks #2 of 9 public schools in Dolton, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Dolton on the city page.
What other schools are in Thornton Twp Hsd 205?
Besides Thornridge High School, Thornton Twp Hsd 205 also operates Thornwood High School (1,843 students) and Thornton Township High School (1,697 students). See the Thornton Twp Hsd 205 district page for the complete list.