For the 2026 school year, there are 3 public high schools serving 1,823 students in Alton, IL.
The top-ranked public high schools in Alton, IL are Journeys School, Alton High School and Mark Twain. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Alton, IL public high schools have an average math proficiency score of 21% (versus the Illinois public high school average of 26%), and reading proficiency score of 22% (versus the 29% statewide average). High schools in Alton have an average ranking of 5/10, which is in the bottom 50% of Illinois public high schools.
Alton, IL public high school have a Graduation Rate of 76%, which is less than the Illinois average of 87%.
The school with highest graduation rate is Alton High School, with 76% graduation rate. Read more about public school graduation rate statistics in Illinois or national school graduation rate statistics.
Minority enrollment is 46% of the student body (majority Black), which is less than the Illinois public high school average of 55% (majority Hispanic).
Best Public High Schools in Alton, IL (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Journeys School
Special Education School
(Math: <50% | Reading: <50% )
Rank:
Rank:
10/
Top 10%10
400 Alby Street
Alton, IL 62002
(618) 208-7490
Alton, IL 62002
(618) 208-7490
Gr: 7-12
Rank: #22.
Alton High School
(Math: 21% | Reading: 22%)
Rank:
Rank:
5/
Bottom 50%10
4200 Humbert Rd
Alton, IL 62002
(618) 474-2700
Alton, IL 62002
(618) 474-2700
Gr: 9-12 | 1,823 students Student-teacher ratio: 18:1 Minority enrollment: 46%
Rank: #33.
Mark Twain
Alternative School
(Math: ≤20% | Reading: ≤20% )
Rank:
Rank:
5/
Bottom 50%10
907 Milton Rd
Alton, IL 62002
(618) 463-2063
Alton, IL 62002
(618) 463-2063
Gr: K-12
Frequently Asked Questions
What are the top-ranked public high schools in Alton, IL?
The top-ranked public high schools in Alton, IL include Journeys School, Alton High School and Mark Twain.
How many public high schools are located in Alton?
3 public high schools are located in Alton.
What is the racial composition of students in Alton?
Alton public high schools minority enrollment is 46% of the student body (majority Black), which is less than the Illinois public high schools average of 55% (majority Hispanic).
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