Crystal Lake South High School vs Lemont Twp High School
A head-to-head comparison of two high schools in Illinois, United States, 66 km apart, using official American 2025 data. The better value in each row is highlighted.
Crystal Lake South High School
Crystal Lake · Public high · Grades 9–12
1,279 students
Lemont Twp High School
Lemont · Public high · Grades 9–12
1,284 students
| Measure | Crystal Lake South High School Crystal Lake, Illinois | Lemont Twp High School Lemont, Illinois |
|---|---|---|
| Success Index (US) | 55 Top 50% | 66 Top 25% |
| State rank | #104 of 691 | #37 of 691 |
| National rank | #7089 of 16,910 | #4244 of 16,910 |
| Sector | Public | Public |
| Type | High | High |
| Year range | Grades 9–12 | Grades 9–12 |
| Students | 1,279 | 1,284 |
| Enrollment | 1,279 | 1,284 |
| Free/reduced-price lunch | 32.1% | 17% |
| Students per teacher | 16.6 | 15.1 |
| Reading proficiency | 47% | 56% |
| Math proficiency | 47% | 51% |
| city | Crystal Lake | Lemont |
| state | Illinois | Illinois |
| Website | – | – |
The verdict
- •Lemont Twp High School scores higher on the Success Index (US) (66.2 vs 54.8).
- •Lemont Twp High School does better on math proficiency (51% vs 47%).
- •Lemont Twp High School does better on reading proficiency (56% vs 47%).
- •Lemont Twp High School does better on community advantage (fewer free/reduced-price lunch) (17% vs 32.1%).
- •Lemont Twp High School does better on students per teacher (15.1 vs 16.6).
- •Lemont Twp High School is the larger school with 1,284 students compared with 1,279.
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 Crystal Lake South High School better than Lemont Twp High School?
On the Success Index (US), Lemont Twp High School ranks higher (66.2 vs 54.8 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 Crystal Lake South High School and Lemont Twp High School?
About 66 km in a straight line, between Crystal Lake and Lemont in Illinois.
Which has the better Enrollment?
Crystal Lake South High School: 1,279. Lemont Twp High School: 1,284. Students enrolled in the latest NCES directory year.
How do Crystal Lake South High School and Lemont Twp High School rank in Illinois?
Crystal Lake South High School is 104th of 691 and Lemont Twp High School is 37th of 691 among high schools in Illinois on the 2025 Success Index (US).