Enrollment
2,134
Illinois · 2024-25 NCES data
High school (grades 9-12) · Dekalb, IL
Dekalb High School
Federal NCES profile for Dekalb High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 171200001449
👥 S:T ratio 32
📚 AP courses 75
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Dekalb High School earns 34/100 on the Resource Investment Index, with class sizes larger than 87% of Illinois schools. It is also one of the largest schools in Illinois.
- #5 of 6
- public schools in Dekalb · Resource Index
- 34
- Resource Index · Typical
- 16.9:1
- large classes for Illinois
- 2,134
- students enrolled
Dekalb High School has class sizes larger than 87% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Dekalb High School ranks #5 of 6 public schools in Dekalb, IL.
School address
District: Dekalb Cusd 428 · Illinois
NCES ID 171200001449 Verify on NCES CCD record →
Teachers (FTE)
123.0
Federal CCD staff survey
Students per teacher
16.9:1
vs 14:1 Illinois avg
+21% vs state
Student-teacher ratio in context
How Dekalb High School compares with Illinois and U.S. medians
What stands out at Dekalb High School
Dekalb High School is a large high school in Dekalb, Illinois, enrolling 2,134 students.
Class loads run heavy: 16.9:1 is larger than about 87% of Illinois schools and 21% above the 14:1 state mean, so each teacher carries more students than is typical.
By headcount it is one of the larger campuses in Illinois, bigger than 98% of state schools at 2,134 students.
Its Resource Investment Index trails 94% of the 3,845 Illinois schools with a score on record, one of the lower results on this measure.
Its student body is led by Hispanic or Latino (35%) and White (34%), more mixed than most schools in the state (diversity index 70/100).
On the academic-pipeline side it reports 15 Advanced Placement courses.
Chronic absenteeism is elevated: 46.4% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Discipline events run high: 2,110 in- and out-of-school suspensions were reported for 2,134 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 2,111 expulsions at this campus for 2021-22.
Dekalb Cusd 428 also operates Huntley Middle School (865 students) and Clinton Rosette Middle School (575 students) alongside Dekalb High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Dekalb High School compares
Dekalb 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 | 16.9:1 | ▲ 21% | 14:1 | 15.7:1 |
| Enrollment | 2,134 | top 2% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.9:1
Leaner classes than 32% of US schools, heavier class loads than most.
2,134
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
16.9:1
students per teacher
- 21% above state mean
Top 87% in Illinois - lower ratio than 13% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
46.4%
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
$16,840
per pupil, district-wide
- below Illinois avg of $17,042
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
1,055
in-school suspensions + 1,055 out-of-school
Suspension rate: 49.4 per 100 students. Combined in-school and out-of-school rate: 98.9 per 100 students. Reported via the Civil Rights Data Collection. Includes 2111 expulsions.
Overview
Enrollment 2,134 Top 2% in Illinois - larger than 98% of 3,845 state schools
Teachers (FTE) 123.0
Students per teacher 16.9:1 +21% vs state
Free-lunch eligible -
NCES ID 171200001449
Student demographics
Hispanic or Latino 34.6%
White 34.4%
African American 23.8%
Two or More 5.4%
Asian 1.3%
American Indian / Alaska Native 0.4%
Native Hawaiian / Pacific Islander 0.1%
Largest group: Hispanic or Latino at 34.6% of enrollment.
Student-body diversity index 70.2/100
Simpson diversity index - at 70.2, Dekalb High School is more mixed than the Illinois school average of 38.9.
Programs & staff
AP courses offered 15
Counselors (FTE) 0.0
Discipline & special education
Chronically absent 46.4%
In-school suspensions 1,055
Out-of-school suspensions 1,055
Expulsions 2,111
Funding & spending
District-wide per-pupil expenditure for Dekalb Cusd 428, which includes Dekalb High School.
$16,840
Per student
-1%
vs Illinois
Avg $17,042
+1%
vs U.S.
Avg $16,593
Revenue mix
Local 41.5%
State 46.9%
Federal 11.6%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Dekalb High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Huntley Middle School | Smaller | No free-lunch data | Lower S:T ratio |
| Clinton Rosette Middle School | Smaller | No free-lunch data | Lower S:T ratio |
| Founders Elementary School | Smaller | No free-lunch data | Lower S:T ratio |
| Cortland Elementary School | Smaller | No free-lunch data | Lower S:T ratio |
| Littlejohn Elem School | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Dekalb High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 865
- Students per teacher
- 13.7:1
- Resource Index
- 25/100
- Enrollment
- 575
- Students per teacher
- 14.6:1
- Resource Index
- 24/100
- Enrollment
- 565
- Students per teacher
- 14.3:1
- Resource Index
- 30/100
- Enrollment
- 523
- Students per teacher
- 14:1
- Resource Index
- 38/100
- Enrollment
- 362
- Students per teacher
- 14.2:1
- Resource Index
- 41/100
Next steps
Verify locally before acting on Dekalb High School's federal record.
- Compare Dekalb High School against another school. Compare schools
- Dekalb Cusd 428's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Dekalb High School
How many students attend Dekalb High School?
Dekalb High School has 2,134 students enrolled. It is a high school in Dekalb, IL.
What is the student-teacher ratio at Dekalb High School?
The student-teacher ratio at Dekalb High School is 16.9:1, which is 21% higher than the Illinois average of 14:1 and 8% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Dekalb High School?
The largest demographic group at Dekalb High School is Hispanic or Latino at 34.6% of enrollment, in Dekalb, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 70.2/100.
What is the Resource Investment Index for Dekalb High School?
Dekalb High School has a Resource Investment Index of 34/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Dekalb High School rank among public schools in Dekalb?
By Resource Investment Index, Dekalb High School ranks #5 of 6 public schools in Dekalb, 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 Dekalb on the city page.
Is Dekalb High School a good school?
Dekalb High School earns 34/100 on the Resource Investment Index, with class sizes larger than 87% of Illinois schools. It is also one of the largest schools in Illinois. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Dekalb Cusd 428?
Besides Dekalb High School, Dekalb Cusd 428 also operates Huntley Middle School (865 students), Clinton Rosette Middle School (575 students), and Founders Elementary School (565 students). See the Dekalb Cusd 428 district page for the complete list.