Crystal Lake South High School vs Lundahl Middle School
A head-to-head comparison of two schools in Illinois, United States, 1.5 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
Lundahl Middle School
Crystal Lake · Public middle · Grades 6–8
797 students
| Measure | Crystal Lake South High School Crystal Lake, Illinois | Lundahl Middle School Crystal Lake, Illinois |
|---|---|---|
| Success Index (US) | 55 Top 50% | 57 Top 50% |
| State rank | #104 of 691 | #206 of 670 |
| National rank | #7089 of 16,910 | #6231 of 15,369 |
| Sector | Public | Public |
| Type | High | Middle |
| Year range | Grades 9–12 | Grades 6–8 |
| Students | 1,279 | 797 |
| Enrollment | 1,279 | 797 |
| Free/reduced-price lunch | 32.1% | 35.4% |
| Students per teacher | 16.6 | 13.3 |
| Reading proficiency | 47% | 47% |
| Math proficiency | 47% | 40% |
| city | Crystal Lake | Crystal Lake |
| state | Illinois | Illinois |
| Website | – | – |
The verdict
- •Lundahl Middle School scores higher on the Success Index (US) (56.5 vs 54.8).
- •Crystal Lake South High School does better on math proficiency (47% vs 40%).
- •Crystal Lake South High School does better on community advantage (fewer free/reduced-price lunch) (32.1% vs 35.4%).
- •Lundahl Middle School does better on students per teacher (13.3 vs 16.6).
- •Crystal Lake South High School is the larger school with 1,279 students compared with 797.
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 Lundahl Middle School?
On the Success Index (US), Lundahl Middle School ranks higher (56.5 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 Lundahl Middle School?
About 1.5 km in a straight line, between Crystal Lake and Crystal Lake in Illinois.
Which has the better Enrollment?
Crystal Lake South High School: 1,279. Lundahl Middle School: 797. Students enrolled in the latest NCES directory year.
How do Crystal Lake South High School and Lundahl Middle School rank in Illinois?
Crystal Lake South High School is 104th of 691 and Lundahl Middle School is 206th of 670 among high schools in Illinois on the 2025 Success Index (US).