Wilmington High School
🇺🇸 Official data · 2025Wilmington, Illinois 60481 · Wilmington CUSD 209U
#352 of 691 high schools in Illinois
#12394 of 16,910 nationally
About Wilmington High School
Wilmington High School is a public high located in Wilmington, in the Wilmington CUSD 209U school district of Illinois, United States. It caters for Grades 9–12. In 2025 it enrolled 432 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 34.2 out of 100, placing it in the lower 50% of high schools in United States and 352nd of 691 ranked high schools in Illinois. Its strongest component is community advantage (fewer free/reduced-price lunch) (61th percentile), and its weakest is reading proficiency (18th percentile).
Other published figures: enrollment 432.
There are 4 schools in Wilmington; Wilmington High School ranks 4th of 4 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)22%
- Reading proficiency (30%)32%
- Community advantage (fewer free/reduced-price lunch) (25%)43.8%
- Students per teacher (15%)14.9
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 Wilmington High School by the official sources.
- Enrollment
- 432
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 43.8%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 14.9
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 32%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 22%
- Share of tested students proficient or above (all students, all grades).
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Schools near Wilmington High School
Closest schools by straight-line distance, with their Success Index (US).
Wilmington Middle School
Wilmington · Public middle · Grades 6–8
254 students · 660 m away
L J Stevens Intermediate School
Wilmington · Public elementary · Grades 2–5
353 students · 734 m away
Bruning Elem School
Wilmington · Public elementary · Grades PK–1
222 students · 2.5 km away
Reed-Custer High School
Braidwood · Public high · Grades 9–12
397 students · 8.0 km away
Reed-Custer Middle School
Braidwood · Public middle · Grades 6–8
306 students · 8.1 km away
Reed-Custer Elementary School
Braidwood · Public elementary · Grades PK–5
690 students · 8.9 km away
Elwood C C School
Elwood · Public elementary · Grades PK–8
331 students · 12 km away
Coal City Intermediate School
Coal City · Public elementary · Grades 4–5
294 students · 13 km away
Coal City Elem School
Coal City · Public elementary · Grades 2–3
302 students · 13 km away
Braceville Elem School
Braceville · Public elementary · Grades PK–8
130 students · 14 km away
Similar schools
Public high schools in Illinois with a comparable Enrollment.
Stillman Valley High School
Stillman Valley · Public high · Grades 9–12
433 students
Corliss High School
Chicago · Public high · Grades 9–12
430 students
Infinity Math Science & Tech HS
Chicago · Public high · Grades 9–12
427 students
Julian High School
Chicago · Public high · Grades 9–12
440 students
Winnebago High School
Winnebago · Public high · Grades 9–12
422 students
Carver Military Academy HS
Chicago · Public high · Grades 9–12
420 students
Frequently asked questions
Is Wilmington High School a good school?
Wilmington High School has a Success Index (US) of 34.2 out of 100 (Lower 50% of high schools in United States) and ranks #352 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 Wilmington High School rank in Illinois?
Wilmington High School ranks #352 of 691 high schools in Illinois and #12394 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Wilmington High School?
Wilmington High School had 432 students in 2025.
Is Wilmington High School a elementary school or a high school?
Wilmington High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Wilmington High School?
There are 10 schools within 15 km of Wilmington High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.