- Enrollment
- 2,134
- Students per teacher
- 17.3:1
- Resource Index
- 20/100
Elementary school (grades K-5) · Dekalb, IL
Jefferson Elem School
Federal NCES profile for Jefferson Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 36/100.
2024-25 NCES dataElementary school (grades K-5)NCES 171200001451
👥 S:T ratio 46
🌟 Gifted program 30
📋 Attendance 32
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Jefferson Elem School earns 36/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also more racially and ethnically mixed than most Illinois schools.
- #1 of 3
- elementary schools in Dekalb · Resource Index
- 36
- Resource Index · Typical
- 13.4:1
- students per teacher
- 308
- students enrolled
Jefferson Elem School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Jefferson Elem School ranks #1 of 3 elementary schools in Dekalb, IL.
School address
District: Dekalb Cusd 428 · Illinois
NCES ID 171200001451 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+2 students YoY
Jefferson Elem School held near 321 students from 2022-23 to 2023-24 (+2 headcount).
Teacher FTE added 23.3 → 27.2 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+2 students YoY 171200001451 · Dekalb, IL Elementary · SMALL · TRAD
308 enr · 13.4:1 · RII 36
Nearest enrollment peer: Dekalb High School (2,134 students)
Jefferson Elem School held near 321 students from 2022-23 to 2023-24 (+2 headcount). Teacher FTE added 23.3 → 27.2 across the same CCD years. Read with this school → · District book → · Illinois schools → · Find another →
Jefferson Elem School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Dekalb High Sc
Dekalb High School
2,134 students
- Huntley Middle
Huntley Middle School
865 students
- Clinton Rosett 575
Clinton Rosette Middle School
575 students
- Founders Eleme 565
Founders Elementary School
565 students
- Cortland Eleme 523
Cortland Elementary School
523 students
- This school 308
Jefferson Elem School
308 students
What this shows Jefferson Elem School reports 308 students on the CCD universe file.
How Jefferson Elem School compares
Jefferson Elem School held steady on CCD headcount: ratios and free-lunch share vs Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.4:1 | ▼ 4% | 14:1 | 15.7:1 |
| Enrollment | 308 | top 62% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.4:1
Leaner classes than 63% of US schools, a middle-of-the-pack class size.
308
Bigger than 33% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Staffing depth
13.4:1
students per teacher
- 4% below state mean
Top 48% in Illinois - lower ratio than 52% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
27.3%
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
$18,665
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
51
in-school suspensions + 52 out-of-school
Suspension rate: 16.6 per 100 students. Combined in-school and out-of-school rate: 33.4 per 100 students. Reported via the Civil Rights Data Collection. Includes 101 expulsions.
Student demographics
White 36.0%
African American 30.8%
Hispanic or Latino 18.2%
Two or More 8.1%
Asian 6.8%
Largest group: White at 36.0% of enrollment.
Student-body diversity index 73.1/100
Simpson diversity index - at 73.1, Jefferson Elem School is more mixed than the Illinois school average of 38.9.
Programs
District finance for Dekalb Cusd 428 reports $18,665 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Jefferson Elem School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Dekalb High School | Larger | No free-lunch data | Higher S:T ratio |
| Huntley Middle School | Larger | No free-lunch data | Similar S:T ratio |
| Clinton Rosette Middle School | Larger | No free-lunch data | Similar S:T ratio |
| Founders Elementary School | Larger | No free-lunch data | Similar S:T ratio |
| Cortland Elementary School | Larger | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Jefferson Elem School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 865
- Students per teacher
- 12.7:1
- Resource Index
- 26/100
- Enrollment
- 575
- Students per teacher
- 13.7:1
- Resource Index
- 25/100
- Enrollment
- 565
- Students per teacher
- 14.5:1
- Resource Index
- 30/100
- Enrollment
- 523
- Students per teacher
- 14.1:1
- Resource Index
- 38/100
Similar elementary schools in Dekalb
2 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 (~308 students)
Frequently asked questions about Jefferson Elem School
How many students attend Jefferson Elem School?
Jefferson Elem School has 308 students enrolled. It is an elementary school in Dekalb, IL. CCD year-over-year: 319 (2022-23) → 321 (2023-24), nearly flat (+2).
What is the student-teacher ratio at Jefferson Elem School?
The student-teacher ratio at Jefferson Elem School is 13.4:1, which is 4% lower than the Illinois average of 14:1 and 15% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Jefferson Elem School?
The largest demographic group at Jefferson Elem School is White at 36.0% of enrollment, in Dekalb, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 73.1/100.
What is the Resource Investment Index for Jefferson Elem School?
Jefferson Elem School has a Resource Investment Index of 36/100 (typical 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 Jefferson Elem School rank among elementary schools in Dekalb?
By Resource Investment Index, Jefferson Elem School ranks #1 of 3 elementary 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 elementary schools in Dekalb on the city page.
What other schools are in Dekalb Cusd 428?
Besides Jefferson Elem School, Dekalb Cusd 428 also operates Dekalb High School (2,134 students), Huntley Middle School (865 students), and Clinton Rosette Middle School (575 students). See the Dekalb Cusd 428 district page for the complete list.