Enrollment
460
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Darien, IL
Concord Elem School
Federal NCES profile for Concord Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
2024-25 NCES dataOther / mixed grade configurationNCES 170879000520
👥 S:T ratio 48
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 42
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Concord Elem School earns 40/100 on the Resource Investment Index, with class sizes near the Illinois median.
- #1 of 3
- schools in Darien · Resource Index
- 40
- Resource Index · Typical
- 13.1:1
- students per teacher
- 460
- students enrolled
Concord Elem School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Concord Elem School ranks #1 of 3 schools in Darien, IL.
School address
Teachers (FTE)
35.0
Federal CCD staff survey
Students per teacher
13.1:1
vs 14:1 Illinois avg
-6% vs state
Student-teacher ratio in context
How Concord Elem School compares with Illinois and U.S. medians
What stands out at Concord Elem School
Concord Elem School is a mid-sized combined-grade school in Darien, Illinois, enrolling 460 students.
At 13.1:1, its student-teacher ratio sits close to the Illinois median, within a few percentage points of the 14:1 state norm, neither notably crowded nor notably small.
With 460 students, its enrollment sits close to the Illinois median campus size.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is led by White (67%) and Asian (17%) (diversity index 52/100).
Counselor access is stretched at roughly 920 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance runs somewhat below the norm, with 23.3% of students chronically absent per the 2021-22 civil-rights collection.
Among Darien's public schools, it stands alongside Mark Delay School (453 students): Concord Elem School is larger than that campus by headcount and runs heavier classes (13.1:1 vs 12.2:1).
Its district, Cass Sd 63, also runs Cass Jr High School (313 students).
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 Concord Elem School compares
Concord Elem 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 | 13.1:1 | ▼ 6% | 14:1 | 15.7:1 |
| Enrollment | 460 | top 36% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.1:1
Leaner classes than 66% of US schools, among the more generously staffed nationally.
460
Bigger than 56% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
13.1:1
students per teacher
- 6% below state mean
Top 44% in Illinois - lower ratio than 56% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
23.3%
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
$15,702
per pupil, district-wide
- below Illinois avg of $17,042
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.5 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.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 66.7%
Asian 16.5%
Two or More 5.4%
Hispanic or Latino 5.2%
African American 3.9%
American Indian / Alaska Native 2.0%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 66.7% of enrollment.
Student-body diversity index 52.0/100
Simpson diversity index - at 52.0, Concord Elem School is more mixed than the Illinois school average of 38.9.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Cass Sd 63, which includes Concord Elem School.
$15,702
Per student
-8%
vs Illinois
Avg $17,042
-5%
vs U.S.
Avg $16,593
Revenue mix
Local 69.4%
State 24.1%
Federal 6.6%
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 Concord Elem School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Cass Jr High School | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Concord Elem School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 313
- Students per teacher
- 13:1
- Resource Index
- 47/100
Similar other schools in Darien
2 comparable other schools (grades Mixed) serving the same city.
Similar other schools statewide
Matched by enrollment size and by staffing ratio across all of Illinois, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~460 students)
Next steps
Verify locally before acting on Concord Elem School's federal record.
- Compare Concord Elem School against another school. Compare schools
- Cass Sd 63'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 Concord Elem School
How many students attend Concord Elem School?
Concord Elem School has 460 students enrolled. It is a public school in Darien, IL.
What is the student-teacher ratio at Concord Elem School?
The student-teacher ratio at Concord Elem School is 13.1:1, which is 6% lower than the Illinois average of 14:1 and 17% 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 Concord Elem School?
The largest demographic group at Concord Elem School is White at 66.7% of enrollment, in Darien, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 52.0/100.
What is the Resource Investment Index for Concord Elem School?
Concord Elem School has a Resource Investment Index of 40/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Concord Elem School rank among schools in Darien?
By Resource Investment Index, Concord Elem School ranks #1 of 3 schools in Darien, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Darien on the city page.
Is Concord Elem School a good school?
Concord Elem School earns 40/100 on the Resource Investment Index, with class sizes near the Illinois median. 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 Cass Sd 63?
Besides Concord Elem School, Cass Sd 63 also operates Cass Jr High School (313 students). See the Cass Sd 63 district page for the complete list.
Related tools
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, or report a data error. Data current as of June 2026.