Crystal Lake South High School vs Harry D Jacobs High School
A head-to-head comparison of two high schools in Illinois, United States, 4.8 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
Harry D Jacobs High School
Algonquin · Public high · Grades 9–12
2,056 students
| Measure | Crystal Lake South High School Crystal Lake, Illinois | Harry D Jacobs High School Algonquin, Illinois |
|---|---|---|
| Success Index (US) | 55 Top 50% | 52 Top 50% |
| State rank | #104 of 691 | #122 of 691 |
| National rank | #7089 of 16,910 | #7778 of 16,910 |
| Sector | Public | Public |
| Type | High | High |
| Year range | Grades 9–12 | Grades 9–12 |
| Students | 1,279 | 2,056 |
| Enrollment | 1,279 | 2,056 |
| Free/reduced-price lunch | 32.1% | 40.3% |
| Students per teacher | 16.6 | 14.7 |
| Reading proficiency | 47% | 43% |
| Math proficiency | 47% | 47% |
| city | Crystal Lake | Algonquin |
| state | Illinois | Illinois |
| Website | – | – |
The verdict
- •Crystal Lake South High School scores higher on the Success Index (US) (54.8 vs 52.3).
- •Crystal Lake South High School does better on reading proficiency (47% vs 43%).
- •Crystal Lake South High School does better on community advantage (fewer free/reduced-price lunch) (32.1% vs 40.3%).
- •Harry D Jacobs High School does better on students per teacher (14.7 vs 16.6).
- •Harry D Jacobs High School is the larger school with 2,056 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 South High School better than Harry D Jacobs High School?
On the Success Index (US), Crystal Lake South High School ranks higher (54.8 vs 52.3 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 Harry D Jacobs High School?
About 4.8 km in a straight line, between Crystal Lake and Algonquin in Illinois.
Which has the better Enrollment?
Crystal Lake South High School: 1,279. Harry D Jacobs High School: 2,056. Students enrolled in the latest NCES directory year.
How do Crystal Lake South High School and Harry D Jacobs High School rank in Illinois?
Crystal Lake South High School is 104th of 691 and Harry D Jacobs High School is 122nd of 691 among high schools in Illinois on the 2025 Success Index (US).