Thornwood High School
🇺🇸 Official data · 2025South Holland, Illinois 60473 · Thornton Twp HSD 205
#551 of 691 high schools in Illinois
#15398 of 16,910 nationally
About Thornwood High School
Thornwood High School is a public high located in South Holland, in the Thornton Twp HSD 205 school district of Illinois, United States. It caters for Grades 9–12. In 2025 it enrolled 1,843 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 19.2 out of 100, placing it in the lower 50% of high schools in United States and 551st of 691 ranked high schools in Illinois. Its strongest component is students per teacher (67th percentile), and its weakest is reading proficiency (3th percentile).
Other published figures: enrollment 1,843.
There are 7 schools in South Holland; Thornwood High School ranks 4th of 7 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)8%
- Reading proficiency (30%)12%
- Community advantage (fewer free/reduced-price lunch) (25%)73.5%
- Students per teacher (15%)12.9
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Thornwood High School by the official sources.
- Enrollment
- 1,843
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 73.5%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 12.9
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 12%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 8%
- Share of tested students proficient or above (all students, all grades).
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Schools near Thornwood High School
Closest schools by straight-line distance, with their Success Index (US).
McKinley Elem School
South Holland · Public elementary · Grades 4–5
176 students · 761 m away
McKinley Jr High School
South Holland · Public middle · Grades 6–8
287 students · 761 m away
Greenwood Elem School
South Holland · Public elementary · Grades PK–3
321 students · 1.4 km away
Wolcott School
Thornton · Public elementary · Grades PK–8
249 students · 1.7 km away
Taft School
Harvey · Public elementary · Grades PK–1
308 students · 2.6 km away
Eisenhower School
South Holland · Public elementary · Grades 2–3
274 students · 2.7 km away
Madison School
South Holland · Public elementary · Grades 4–5
277 students · 3.0 km away
Coolidge Middle School
Phoenix · Public middle · Grades 6–8
460 students · 3.3 km away
Holmes Elem School
Harvey · Public elementary · Grades PK–5
270 students · 3.3 km away
Longwood Elem School
Glenwood · Public elementary · Grades PK–4
364 students · 3.8 km away
Similar schools
Public high schools in Illinois with a comparable Enrollment.
East Leyden High School
Franklin Park · Public high · Grades 9–12
1,840 students
Addison Trail High School
Addison · Public high · Grades 9–12
1,847 students
Lake Zurich High School
Lake Zurich · Public high · Grades 9–12
1,839 students
Quincy Sr High School
Quincy · Public high · Grades 9–12
1,847 students
Romeoville High School
Romeoville · Public high · Grades 9–12
1,848 students
Maine West High School
Des Plaines · Public high · Grades 9–12
1,857 students
Frequently asked questions
Is Thornwood High School a good school?
Thornwood High School has a Success Index (US) of 19.2 out of 100 (Lower 50% of high schools in United States) and ranks #551 of 691 in Illinois. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Thornwood High School rank in Illinois?
Thornwood High School ranks #551 of 691 high schools in Illinois and #15398 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Thornwood High School?
Thornwood High School had 1,843 students in 2025.
Is Thornwood High School a elementary school or a high school?
Thornwood High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Thornwood High School?
There are 10 schools within 15 km of Thornwood High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.