Crystal Lake Central High School vs Crystal Lake South High School
A head-to-head comparison of two high schools in Illinois, United States, 3.3 km apart, using official American 2025 data. The better value in each row is highlighted.
Crystal Lake Central High School
Crystal Lake · Public high · Grades 9–12
1,443 students
Crystal Lake South High School
Crystal Lake · Public high · Grades 9–12
1,279 students
| Measure | Crystal Lake Central High School Crystal Lake, Illinois | Crystal Lake South High School Crystal Lake, Illinois |
|---|---|---|
| Success Index (US) | 50 Top 50% | 55 Top 50% |
| State rank | #153 of 691 | #104 of 691 |
| National rank | #8504 of 16,910 | #7089 of 16,910 |
| Sector | Public | Public |
| Type | High | High |
| Year range | Grades 9–12 | Grades 9–12 |
| Students | 1,443 | 1,279 |
| Enrollment | 1,443 | 1,279 |
| Free/reduced-price lunch | 35.3% | 32.1% |
| Students per teacher | 17.0 | 16.6 |
| Reading proficiency | 44% | 47% |
| Math proficiency | 42% | 47% |
| city | Crystal Lake | Crystal Lake |
| state | Illinois | Illinois |
| Website | – | – |
The verdict
- •Crystal Lake South High School scores higher on the Success Index (US) (54.8 vs 49.5).
- •Crystal Lake South High School does better on math proficiency (47% vs 42%).
- •Crystal Lake South High School does better on reading proficiency (47% vs 44%).
- •Crystal Lake South High School does better on community advantage (fewer free/reduced-price lunch) (32.1% vs 35.3%).
- •Crystal Lake South High School does better on students per teacher (16.6 vs 17.0).
- •Crystal Lake Central High School is the larger school with 1,443 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.
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Frequently asked questions
Is Crystal Lake Central High School better than Crystal Lake South High School?
On the Success Index (US), Crystal Lake South High School ranks higher (54.8 vs 49.5 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 Central High School and Crystal Lake South High School?
About 3.3 km in a straight line, between Crystal Lake and Crystal Lake in Illinois.
Which has the better Enrollment?
Crystal Lake Central High School: 1,443. Crystal Lake South High School: 1,279. Students enrolled in the latest NCES directory year.
How do Crystal Lake Central High School and Crystal Lake South High School rank in Illinois?
Crystal Lake Central High School is 153rd of 691 and Crystal Lake South High School is 104th of 691 among high schools in Illinois on the 2025 Success Index (US).