Marquette Catholic High School
Diocesan school · Grades 9–12
Alton, IL
219 E 4th St, Alton, IL 62002
Overall grade: B+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- B-Class size
- ACollege-going
- A-Years serving families
- A+Diversity
What stands out
- 95% of graduates go to four-year colleges
- Serving families in Alton since at least 2011
In Alton, Illinois, Marquette Catholic High School is a Catholic diocesan school for students from 9th grade through 12th grade. About 371 students attend. Its enrollment has held steady since 2011–12. The school is part of the Diocese of Springfield. The school reports that about 95% of its graduates go on to four-year colleges. The school day runs about 7.5 hours, 176 days a year.
At a glance
- Grades
- Grades 9–12
- Students
- 371
- Teachers
- 4 (full-time equivalent)
- Boys and girls
- Coed · 196 girls, 175 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Diocese of Springfield
- School day
- About 7.5 hours
- School year
- 176 days
- Graduates going to 4-year colleges
- About 95% (the school's estimate for the class before the survey)
- Library
- Yes
Reviews
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How it compares
- A smaller school: fewer students than 51% of Catholic high schools in Illinois.
- Compared with 51 Catholic high schools in Illinois.
Students by survey year
Total students reported in official records since 2011–12.
Students by grade
Student body
Member of
- National Catholic Educational Association
Questions to ask on a tour
- What is tuition, and what does it include (books, fees, uniforms, trips)?
- Do you offer financial aid, sibling discounts or payment plans?
- Do you accept ESA, voucher or tax-credit scholarship funds?
- How big are classes in my child's grade?
- What support is there for students who need extra help or more challenge?
- Is the school accredited, and by whom?
- What do a typical day and a typical week look like?
- How does the school communicate with families?
Questions about Marquette Catholic High School
What grades does Marquette Catholic High School serve?
Marquette Catholic High School serves grades 9–12.
How many students attend Marquette Catholic High School?
About 371 students, with 93 students per teacher, according to official records.
How much is tuition at Marquette Catholic High School?
Call the school to ask about tuition, financial aid and payment plans.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
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