High school (grades 9-12) · Lake Zurich, IL

Lake Zurich High School

Federal NCES profile for Lake Zurich High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.

2024-25 NCES dataHigh school (grades 9-12)NCES 172190002460
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Compiled from official source data by .
0/100100/10042/100
👥 S:T ratio
42
🌟 Gifted program
30
🎓 Counselors
47
📋 Attendance
50
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →

The verdict

Lake Zurich High School earns 42/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also one of the largest schools in Illinois.

#5 of 5
public schools in Lake Zurich · Resource Index
42
Resource Index · Typical
14.6:1
students per teacher
1,839
students enrolled

Lake Zurich High School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.

By Resource Investment Index, Lake Zurich High School ranks #5 of 5 public schools in Lake Zurich, IL.

School address

Lake Zurich, IL 60047
District: Lake Zurich Cusd 95 · Illinois

NCES ID 172190002460 Verify on NCES CCD record →

NCES CCD universe card

School universe 172190002460 · Lake Zurich, IL High · MID · TRAD

1,839 enr · 14.6:1 · RII 42

Nearest enrollment peer: Lake Zurich Middle - N Campus (697 students)

Resource Investment Index #5 of 5 public schools in Lake Zurich. NCES Common Core of Data stamps for this campus. Read with this school → · District book → · Illinois schools → · Find another →

Lake Zurich High School in the enrollment neighbourhood

Fall enrollment among this campus and nearest district peers

students

What this shows Lake Zurich High School reports 1,839 students on the CCD universe file.

Source U.S. Department of Education, NCES Common Core of Data (Public School Universe) As of 2024-25

How Lake Zurich High School compares

Lake Zurich High School on the metrics families compare, against Illinois and U.S. means.

Metric This school vs Illinois Illinois avg U.S. avg
Students per teacher 14.6:1 ▲ 4% 14:1 15.7:1
Enrollment 1,839 top 3% - -

Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25

14.6:1
Leaner classes than 51% of US schools, a middle-of-the-pack class size.
1,839
Bigger than 98% of US schools by enrollment, a large campus nationally.

Equity indicators (what these measure)

Staffing depth
14.6:1
students per teacher - 4% above state mean
Top 64% in Illinois - lower ratio than 36% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
20.1%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$20,006
per pupil, district-wide - above Illinois avg of $18,196
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors7.0 FTE
Per 263 students, the combined health-and-guidance staffing load for this school.
Discipline context
8
in-school suspensions + 2 out-of-school
Suspension rate: 0.4 per 100 students. Combined in-school and out-of-school rate: 0.5 per 100 students. Reported via the Civil Rights Data Collection.

Student demographics

White 77.3%
Asian 9.6%
Hispanic or Latino 9.4%
Two or More 1.7%
African American 1.2%
American Indian / Alaska Native 0.6%
Native Hawaiian / Pacific Islander 0.2%

Largest group: White at 77.3% of enrollment.

Student-body diversity index 38.4/100

Simpson diversity index - at 38.4, Lake Zurich High School is about as mixed as the Illinois school average of 38.9.

Programs

AP courses offered 20

Funding & spending

District-wide per-pupil expenditure for Lake Zurich Cusd 95, which includes Lake Zurich High School.

$20,006
Per student
+10%
vs Illinois
Avg $18,196
+13%
vs U.S.
Avg $17,658
Revenue mix
Local 72.5%
State 23.9%
Federal 3.6%

Source: NCES F-33 School District Finance Survey District-level finance · FY 2022-23 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.

How Lake Zurich High School Compares to District-Mates

School Enrollment Economic Profile Student-Teacher Ratio
Lake Zurich Middle - N Campus Smaller No free-lunch data Lower S:T ratio
May Whitney Elem School Smaller No free-lunch data Similar S:T ratio
Lake Zurich Middle - S Campus Smaller No free-lunch data Lower S:T ratio
Isaac Fox Elementary School Smaller No free-lunch data Higher S:T ratio
Spencer Loomis Elementary School Smaller No free-lunch data Higher S:T ratio

Comparisons are relative to Lake Zurich High School's own figures; each column derives from NCES Common Core of Data.

Other Schools in This District

Lake Zurich Cusd 95 · 5 sibling schools

View district profile

Nationwide high schools with similar size or staffing

Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.

Similar enrollment (~1,839 students)

Similar student-teacher ratio (~14.6:1)

Frequently asked questions about Lake Zurich High School

How many students attend Lake Zurich High School?

Lake Zurich High School has 1,839 students enrolled. It is a high school in Lake Zurich, IL.

What is the student-teacher ratio at Lake Zurich High School?

The student-teacher ratio at Lake Zurich High School is 14.6:1, which is 4% higher than the Illinois average of 14:1 and 7% lower than the national average of 15.7:1.

What is the racial and ethnic makeup of Lake Zurich High School?

The largest demographic group at Lake Zurich High School is White at 77.3% of enrollment, in Lake Zurich, IL.

What is the Resource Investment Index for Lake Zurich High School?

Lake Zurich High School has a Resource Investment Index of 42/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).

How does Lake Zurich High School rank among public schools in Lake Zurich?

By Resource Investment Index, Lake Zurich High School ranks #5 of 5 public schools in Lake Zurich, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Lake Zurich on the city page.

What other schools are in Lake Zurich Cusd 95?

Besides Lake Zurich High School, Lake Zurich Cusd 95 also operates Lake Zurich Middle - N Campus (697 students), May Whitney Elem School (677 students), and Lake Zurich Middle - S Campus (599 students). See the Lake Zurich Cusd 95 district page for the complete list.

Read our methodology - how this data is sourced, computed, and verified.

Source: National Center for Education Statistics (NCES) CCD + Public School Universe (2024-25), CRDC (2021-22), F-33 District Finance Survey (FY 2022-23) · 2024-25 Data as of the 2024-25 school year. Coverage from U.S. Department of Education NCES Common Core of Data. Varies by entity type; administrative districts and certain charter networks may report only a subset of fields.

All federal data sources used on this page

Full source list and how we compute each figure: methodology page.

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Compiled from official source data by .

Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error. Data current as of August 2026.