- Enrollment
- 1,839
- Students per teacher
- 14.6:1
- Resource Index
- 42/100
Elementary school (grades K-5) · Lake Zurich, IL
Isaac Fox Elementary School
Federal NCES profile for Isaac Fox Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 60/100.
2024-25 NCES dataElementary school (grades K-5)NCES 172190000518
👥 S:T ratio 33
🌟 Gifted program 70
📋 Attendance 78
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Isaac Fox Elementary School earns 60/100 on the Resource Investment Index, with class sizes larger than 86% of Illinois schools.
- #3 of 5
- public schools in Lake Zurich · Resource Index
- 60
- Resource Index · Higher
- 16.8:1
- large classes for Illinois
- 520
- students enrolled
Isaac Fox Elementary School has class sizes larger than 86% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Isaac Fox Elementary School ranks #3 of 5 public schools in Lake Zurich, IL.
School address
District: Lake Zurich Cusd 95 · Illinois
NCES ID 172190000518 Verify on NCES CCD record →
NCES CCD universe card
School universe 172190000518 · Lake Zurich, IL Elementary · MID · TRAD
520 enr · 16.8:1 · RII 60
Nearest enrollment peer: Lake Zurich High School (1,839 students)
Resource Investment Index #3 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 →
Isaac Fox Elementary School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Lake Zurich Hi
Lake Zurich High School
1,839 students
- Lake Zurich Mi 697
Lake Zurich Middle - N Campus
697 students
- May Whitney El 677
May Whitney Elem School
677 students
- Lake Zurich Mi 599
Lake Zurich Middle - S Campus
599 students
- This school 520
Isaac Fox Elementary School
520 students
- Spencer Loomis 516
Spencer Loomis Elementary School
516 students
What this shows Isaac Fox Elementary School reports 520 students on the CCD universe file.
How Isaac Fox Elementary School compares
Isaac Fox Elementary 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 | 16.8:1 | ▲ 20% | 14:1 | 15.7:1 |
| Enrollment | 520 | top 28% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.8:1
Leaner classes than 32% of US schools, heavier class loads than most.
520
Bigger than 64% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
16.8:1
students per teacher
- 20% above state mean
Top 86% in Illinois - lower ratio than 14% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
8.7%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 82.1%
Asian 7.5%
Hispanic or Latino 6.7%
Two or More 3.3%
American Indian / Alaska Native 0.4%
Largest group: White at 82.1% of enrollment.
Student-body diversity index 31.5/100
Simpson diversity index - at 31.5, Isaac Fox Elementary School is less mixed than the Illinois school average of 38.9.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Lake Zurich Cusd 95, which includes Isaac Fox Elementary 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 Isaac Fox Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Lake Zurich High School | Larger | No free-lunch data | Lower S:T ratio |
| Lake Zurich Middle - N Campus | Larger | No free-lunch data | Lower S:T ratio |
| May Whitney Elem School | Larger | No free-lunch data | Lower S:T ratio |
| Lake Zurich Middle - S Campus | Similar size | No free-lunch data | Lower S:T ratio |
| Spencer Loomis Elementary School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Isaac Fox Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 697
- Students per teacher
- 12.7:1
- Resource Index
- 48/100
- Enrollment
- 677
- Students per teacher
- 13.8:1
- Resource Index
- 63/100
- Enrollment
- 599
- Students per teacher
- 11.5:1
- Resource Index
- 49/100
- Enrollment
- 516
- Students per teacher
- 17.8:1
- Resource Index
- 47/100
Similar elementary schools in Lake Zurich
1 comparable elementary schools (grades K-5) serving the same city.
Nationwide elementary 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 (~520 students)
Frequently asked questions about Isaac Fox Elementary School
How many students attend Isaac Fox Elementary School?
Isaac Fox Elementary School has 520 students enrolled. It is an elementary school in Lake Zurich, IL.
What is the student-teacher ratio at Isaac Fox Elementary School?
The student-teacher ratio at Isaac Fox Elementary School is 16.8:1, which is 20% higher than the Illinois average of 14:1 and 7% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Isaac Fox Elementary School?
The largest demographic group at Isaac Fox Elementary School is White at 82.1% of enrollment, in Lake Zurich, IL.
What is the Resource Investment Index for Isaac Fox Elementary School?
Isaac Fox Elementary School has a Resource Investment Index of 60/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Isaac Fox Elementary School rank among public schools in Lake Zurich?
By Resource Investment Index, Isaac Fox Elementary School ranks #3 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 Isaac Fox Elementary School, Lake Zurich Cusd 95 also operates Lake Zurich High School (1,839 students), Lake Zurich Middle - N Campus (697 students), and May Whitney Elem School (677 students). See the Lake Zurich Cusd 95 district page for the complete list.
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.