Alton High School
🇺🇸 Official data · 2025Alton, Illinois 62002 · Alton CUSD 11
#358 of 691 high schools in Illinois
#12469 of 16,910 nationally
About Alton High School
Alton High School is a public high located in Alton, in the Alton CUSD 11 school district of Illinois, United States. It caters for Grades 9–12. In 2025 it enrolled 1,823 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 33.8 out of 100, placing it in the lower 50% of high schools in United States and 358th of 691 ranked high schools in Illinois. Its strongest component is community advantage (fewer free/reduced-price lunch) (62th percentile), and its weakest is reading proficiency (15th percentile).
Other published figures: enrollment 1,823.
There are 6 schools in Alton; Alton High School ranks 3rd of 6 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)30%
- Reading proficiency (30%)29%
- Community advantage (fewer free/reduced-price lunch) (25%)43.1%
- Students per teacher (15%)18.6
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 Alton High School by the official sources.
- Enrollment
- 1,823
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 43.1%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 18.6
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 29%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 30%
- Share of tested students proficient or above (all students, all grades).
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Schools near Alton High School
Closest schools by straight-line distance, with their Success Index (US).
Eunice Smith Elem School
Alton · Public elementary · Grades K–2
188 students · 3.1 km away
North Elementary School
Godfrey · Public elementary · Grades 2–5
549 students · 3.2 km away
Lovejoy Elem School
Alton · Public elementary · Grades K–2
230 students · 3.5 km away
Alton Middle School
Alton · Public middle · Grades 6–8
1,220 students · 3.5 km away
Early Childhood
Godfrey · Public other · Grades PK–PK
267 students · 3.6 km away
Lewis & Clark Elem School
Godfrey · Public elementary · Grades K–1
251 students · 4.0 km away
East Elementary School
Alton · Public elementary · Grades 3–5
415 students · 4.5 km away
West Elementary School
Alton · Public elementary · Grades 2–5
407 students · 4.5 km away
Gilson Brown Elem School
Godfrey · Public elementary · Grades K–1
176 students · 5.2 km away
Washington Elem School
East Alton · Public other · Grades PK–PK
130 students · 7.9 km away
Similar schools
Public high schools in Illinois with a comparable Enrollment.
Bloom High School
Chicago Heights · Public high · Grades 9–12
1,823 students
Plainfield East High School
Plainfield · Public high · Grades 9–12
1,825 students
DD Eisenhower High Sch (Campus)
Blue Island · Public high · Grades 9–12
1,818 students
Argo Community High School
Summit · Public high · Grades 9–12
1,817 students
Hononegah CHD High School
Rockton · Public high · Grades 9–12
1,814 students
Rock Island High School
Rock Island · Public high · Grades 9–12
1,812 students
Frequently asked questions
Is Alton High School a good school?
Alton High School has a Success Index (US) of 33.8 out of 100 (Lower 50% of high schools in United States) and ranks #358 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 Alton High School rank in Illinois?
Alton High School ranks #358 of 691 high schools in Illinois and #12469 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Alton High School?
Alton High School had 1,823 students in 2025.
Is Alton High School a elementary school or a high school?
Alton High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Alton High School?
There are 10 schools within 15 km of Alton High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.