Senn High School vs Sullivan High School
A head-to-head comparison of two high schools in Illinois, United States, 1.5 km apart, using official American 2025 data. The better value in each row is highlighted.
Senn High School
Chicago · Public high · Grades 9–12
1,571 students
Sullivan High School
Chicago · Public high · Grades 9–12
762 students
| Measure | Senn High School Chicago, Illinois | Sullivan High School Chicago, Illinois |
|---|---|---|
| Success Index (US) | 30 Lower 50% | 19 Lower 50% |
| State rank | #425 of 691 | #553 of 691 |
| National rank | #13302 of 16,910 | #15420 of 16,910 |
| Sector | Public | Public |
| Type | High | High |
| Year range | Grades 9–12 | Grades 9–12 |
| Students | 1,571 | 762 |
| Enrollment | 1,571 | 762 |
| Free/reduced-price lunch | 73.6% | 77.6% |
| Students per teacher | 15.6 | 12.9 |
| Reading proficiency | 35% | 7.5% |
| Math proficiency | 30% | 12% |
| city | Chicago | Chicago |
| state | Illinois | Illinois |
| Website | – | – |
The verdict
- •Senn High School scores higher on the Success Index (US) (30.2 vs 19.1).
- •Senn High School does better on math proficiency (30% vs 12%).
- •Senn High School does better on reading proficiency (35% vs 7.5%).
- •Senn High School does better on community advantage (fewer free/reduced-price lunch) (73.6% vs 77.6%).
- •Sullivan High School does better on students per teacher (12.9 vs 15.6).
- •Senn High School is the larger school with 1,571 students compared with 762.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
Free academic assessment
Torn between two schools? Start with your child.
Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Frequently asked questions
Is Senn High School better than Sullivan High School?
On the Success Index (US), Senn High School ranks higher (30.2 vs 19.1 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Senn High School and Sullivan High School?
About 1.5 km in a straight line, between Chicago and Chicago in Illinois.
Which has the better Enrollment?
Senn High School: 1,571. Sullivan High School: 762. Students enrolled in the latest NCES directory year.
How do Senn High School and Sullivan High School rank in Illinois?
Senn High School is 425th of 691 and Sullivan High School is 553rd of 691 among high schools in Illinois on the 2025 Success Index (US).