Enrollment
351
Illinois · 2024-25 NCES data
2024-25 NCES data Elementary school (grades K-5) NCES 173177003340
Centennial Elem School — Plano, IL
Federal NCES profile for Centennial Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 36/100.
👥 Class size 48
🌟 Gifted program 30
📋 Attendance 29
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Plano Cusd 88 · Illinois
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
25.0
Federal CCD staff survey
Students per teacher
13:1
vs 14.6:1 Illinois avg
-11% vs state
Student-teacher ratio in context
How Centennial Elem School compares with Illinois and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Centennial Elem School reports 351 enrolled students to the National Center for Education Statistics (NCES) alongside 25.0 full-time-equivalent teachers, producing a 13:1 student-teacher ratio. That figure sits 11% below the Illinois state mean of 14.6:1, signalling more teacher attention per pupil than the state benchmark. Against the national 2024-25 average of 15.9:1, it is 18% lower, a useful calibration for families comparing districts across state lines.
Chronic absenteeism — missing 10% or more of school days — stands at 28.5% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Plano Cusd 88 spends $19,987 per pupil district-wide, below the Illinois average of $20,099 and above the national average of $19,490. Revenue comes 43.1% from local sources (property taxes), 49.7% from the state, and 7.2% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 36/100 (F), calculated from 3 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Centennial Elem School compares
Cross-validating school-level NCES values against Illinois state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13:1 | ▼ 11% | 14.6:1 | 15.9:1 |
| Enrollment | 351 | top 46% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Staffing depth
13:1
students per teacher
— 11% below state mean
Top 41% in Illinois — lower ratio than 59% of state schools
Below the 15:1 benchmark — typical of schools with smaller class sizes and more individualized attention.
Engagement
28.5%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Funding equity
$19,987
per pupil, district-wide
— below Illinois avg of $20,099
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
1
in-school suspensions + 1 out-of-school
Suspension rate: 0.3 per 100 students. Combined in-school and out-of-school rate: 0.6 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 351 Top 46% in Illinois — larger than 54% of 3,845 state schools
Teachers (FTE) 25.0
Students per teacher 13:1 -11% vs state
Free-lunch eligible —
NCES ID 173177003340
Student demographics
Hispanic or Latino 53.3%
White 32.8%
African American 10.0%
Two or More 4.0%
Largest group: Hispanic or Latino at 53.3% of enrollment.
Programs & staff
Counselors (FTE) 0.0
Discipline & special education
Chronically absent 28.5%
In-school suspensions 1
Out-of-school suspensions 1
Funding & spending
District-wide per-pupil expenditure for Plano Cusd 88, which includes Centennial Elem School.
$19,987
Per student
-1%
vs Illinois
Avg $20,099
+3%
vs U.S.
Avg $19,490
Revenue mix
Local 43.1%
State 49.7%
Federal 7.2%
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.
Other Schools in This District
- Enrollment
- 757
- Students per teacher
- 14.9:1
- Enrollment
- 494
- Students per teacher
- 16.5:1
- Enrollment
- 438
- Students per teacher
- 14.2:1
- Enrollment
- 358
- Students per teacher
- 11.5:1
Similar elementary schools in Plano
1 comparable elementary schools (grades K-5) serving the same city.
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Centennial Elem School
How many students attend Centennial Elem School?
Centennial Elem School has 351 students enrolled. It is a elementary school in Plano, IL.
What is the student-teacher ratio at Centennial Elem School?
The student-teacher ratio at Centennial Elem School is 13:1, which is 11% lower than the Illinois average of 14.6:1 and 18% lower than the national average of 15.9:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Centennial Elem School?
The largest demographic group at Centennial Elem School is Hispanic or Latino at 53.3%. The school serves a diverse student body in Plano, IL.
What is the Resource Investment Index for Centennial Elem School?
Centennial Elem School has a Resource Investment Index of 36/100 (F) based on 3 factors: student-teacher ratio, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.