Total enrollment
5,203
-485 (-9%) vs SY 2020-21
5 schools in CHSD 155
Illinois · 5,203 students · 2 cities
Looking at the CHSD 155 system: 5 public K-12 schools serving approximately 5,203 students inside Illinois, averaging 1041 per school.
4-year change in CHSD 155
SY 2020-21 vs SY 2024-25School count
4
0 (0%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How CHSD 155 ranks
Among districts| Measure | This district | In Illinois | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 52.4% | #71 of 327 | N/A |
| Enrollment ranked largest first | 5,203 | #57 of 508 | #1,847 of 9,234 |
| Number of schools ranked most first | 4 | #199 of 508 | N/A |
| Students per teacher ranked fewest first | 16.9:1 | #487 of 506 | #7,057 of 9,044 |
| Free or reduced-price lunch share ranked highest first | 29.2% | #379 of 456 | #6,696 of 8,164 |
| Diversity index ranked most diverse first | 45.9% | #180 of 341 | #3,415 of 6,853 |
Districts need at least 2 schools and 500 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.
Inside CHSD 155
State test results across the district's 4 scored schools run from Prairie Ridge High School at 60.6% proficient to Crystal Lake Central High School at 45.3%, a gap of 15.4 points. That is the 111th widest gap among 172 Illinois districts with four or more scored schools.
Since 2017-18, the 4 district schools that reported both years went from 6,111 to 5,203 students (down 15%) and from 347 to 309 full-time teachers (down 11%), as of 2024-25.
Proficient is the average share of students meeting the state standard across each school's state tests in 2023-24 and 2024-25; schools with fewer than 100 students and schools serving specialized populations are left out. Staffing figures come from the NCES Common Core of Data and count only schools that reported students and teachers in both years.
| Name | City | Level | Grades | Enrollment |
|---|---|---|---|---|
| Crystal Lake Central High School | Crystal Lake | High | 09-12 | 1,443 |
| Cary-Grove Community High School | Cary | High | 09-12 | 1,348 |
| Crystal Lake South High School | Crystal Lake | High | 09-12 | 1,279 |
| Prairie Ridge High School | Crystal Lake | High | 09-12 | 1,133 |
| Haber Oaks Campus | Crystal Lake | High | 09-12 | 0 |
About CHSD 155
As a sparse district in Illinois, CHSD 155 educates 5,203 students across 5 schools.
Per-school enrollment averages around 1,041 in this district, noticeably above the Illinois typical of 480.
Over the past 4-year window. Across the same 4-year window, public-school enrollment shrank 9%: 5,688 students in SY 2020-21 versus 5,203 in SY 2024-25.
Within the allk12 community for this area, the community for CHSD 155 discusses sports rivalries, cross-district programs, and shared facilities. Members of the local community share what they see day-to-day.