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8.3 avg / 10

Chsd 155 School District

School District · Crystal Lake, Illinois

Students: 5,340
Teachers (FTE): 324

Avg Rating

8.3

out of 10

Schools

4

4 high

Per-Pupil Spending

$23,700

Student-Teacher Ratio

16.5:1

District shortlistschools + peers

Evaluating Chsd 155?

A district shares budget, policy, and attendance zones across its schools — use this page to judge Chsd 155 as a whole, then compare how its individual schools differ.

Shortlist starter

Start with these real page-level signals, then use the full table and map below.

Prairie Ridge High School

8.8/10

Crystal Lake · High. Compare this profile against district averages, level fit, and attendance-zone reality below.

Cary-grove Community High School

8.5/10

Cary · High. Compare this profile against district averages, level fit, and attendance-zone reality below.

Crystal Lake South High School

8.2/10

Crystal Lake · High. Compare this profile against district averages, level fit, and attendance-zone reality below.

How this district compares

Illinois rank

#46 of 637

districts by avg. composite

Vs. state average

+2.1

above Illinois avg

Per-pupil spending

$23,700

+$7,010 vs Illinois median

District size

5,340 students

Much larger than Illinois median

The short answer

Chsd 155 ranks #46 of 637 Illinois districts by overall school rating. Chsd 155's schools with real test data average 8.3/10 across 4 schools. Its top-rated schools are Prairie Ridge High School (8.8/10), Cary-grove Community High School (8.5/10), and Crystal Lake South High School (8.2/10). Schools with estimated (proxy) scores are excluded from this ranking.

Top-Rated Schools in Chsd 155

Ranked by MySchoolScout composite rating using only schools with real test data (4 of 4). "Value" = points above what student poverty predicts. Estimated (proxy) scores are excluded.

# School Rating
1 Prairie Ridge High School 8.8 / 10
2 Cary-grove Community High School 8.5 / 10
3 Crystal Lake South High School 8.2 / 10
4 Crystal Lake Central High School 7.7 / 10

See all 4 schools — including those with estimated data — in the full directory below. How we rate schools.

About Chsd 155

Chsd 155 is a Crystal Lake, Illinois school district serving 4 schools. The district educates 5,340 students with a student-teacher ratio of 16.5:1. The district invests $23,700 per student annually.

With an average rating of 8.3/10, Chsd 155 is among the strongest-performing districts in the state.

The highest-rated school in the district is Prairie Ridge High School, which has a composite score of 8.8/10.

In standardized testing, Chsd 155 students show an average math proficiency of 49.9% and ELA proficiency of 51.2%.

The district includes 4 high schools.

District Map

Schools in Chsd 155, colored by MySchoolScout rank. Click a pin for details.

District Average Test Scores

Math Proficiency 49.9%
School
State
N/A
ELA Proficiency 51.2%
School
State
N/A

Average proficiency across all schools in Chsd 155 with test data.

District Details

City
Crystal Lake
Total Enrollment
5,340
Teachers (FTE)
324
Child Poverty Rate
0.0%
Data Year
2023

Frequently Asked Questions

How many schools are in Chsd 155?

Chsd 155 has 4 schools in total — 4 high schools. You can explore each school's ratings and details on this page.

What is the average rating for Chsd 155?

The average composite rating for Chsd 155 is 8.3/10. This score is calculated from the individual ratings of all schools with academic data in the district.

What is the per-pupil spending in Chsd 155?

Chsd 155 spends $23,700 per student per year.

What is the student-teacher ratio in Chsd 155?

The average student-teacher ratio in Chsd 155 is 16.5:1.

What is the top-rated school in Chsd 155?

Prairie Ridge High School is the highest-rated school in Chsd 155 with a composite score of 8.8/10.

What are the test scores in Chsd 155?

Across schools in Chsd 155 with test data, the average math proficiency is 49.9% and the average ELA (reading/writing) proficiency is 51.2%. These figures represent the percentage of students meeting or exceeding grade-level standards.

How does Chsd 155 compare to other districts in Illinois?

Chsd 155 has an average school rating of 8.3/10 across 4 schools. Families can compare this to other districts in Illinois by visiting individual district pages. Factors like school size, available programs, and community demographics also play a role in choosing the right fit.

How does MySchoolScout rate schools?

MySchoolScout ratings blend student growth, poverty-adjusted academic performance, and learning environment — plus college readiness for high schools. Weights vary by school level, and equity data is shown for context without being factored into the score. Learn more about our rating system on our methodology page.

District Averages

Overall Rating
8.3/10
Math Proficiency
49.9%
ELA Proficiency
51.2%

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

Data from NCES Common Core of Data, Illinois Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.

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