- Enrollment
- 757
- Students per teacher
- 14.3:1
- Resource Index
- 40/100
Elementary school (grades K-5) · Plano, IL
Centennial Elem School
Federal NCES profile for Centennial Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
2024-25 NCES dataElementary school (grades K-5)NCES 173177003340
👥 S:T ratio 44
🌟 Gifted program 30
📋 Attendance 29
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Centennial Elem School earns 34/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also more racially and ethnically mixed than most Illinois schools.
- #3 of 5
- public schools in Plano · Resource Index
- 34
- Resource Index · Typical
- 14:1
- students per teacher
- 351
- students enrolled
Centennial Elem School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Centennial Elem School ranks #3 of 5 public schools in Plano, IL.
School address
CCD year-over-year · 2022-23 → 2023-24
+31 students YoY
Centennial Elem School grew from 326 students in 2022-23 to 357 in 2023-24 (+9.5%).
Teacher FTE added 25.0 → 27.2 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+31 students YoY 173177003340 · Plano, IL Elementary · SMALL · TRAD
351 enr · 14:1 · RII 34
Nearest enrollment peer: Plano High School (757 students)
Centennial Elem School grew from 326 students in 2022-23 to 357 in 2023-24 (+9.5%). Teacher FTE added 25.0 → 27.2 across the same CCD years. Read with this school → · District book → · Illinois schools → · Find another →
Centennial Elem School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Plano High Sch
Plano High School
757 students
- Emily G Johns
Emily G Johns School
494 students
- P H Miller Ele
P H Miller Elem School
438 students
- Plano Middle S
Plano Middle School
358 students
- This school
Centennial Elem School
351 students
What this shows Centennial Elem School reports 351 students on the CCD universe file.
How Centennial Elem School compares
Centennial Elem School is a growing campus on CCD: ratios and free-lunch share vs Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14:1 | ▼ 0% | 14:1 | 15.7:1 |
| Enrollment | 351 | top 54% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14:1
Leaner classes than 57% of US schools, a middle-of-the-pack class size.
351
Bigger than 40% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Staffing depth
14:1
students per teacher
- 0% above state mean
Top 56% in Illinois - lower ratio than 44% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
28.5%
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
$15,971
per pupil, district-wide
- below Illinois avg of $18,196
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
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.
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.
Student-body diversity index 59.7/100
Simpson diversity index - at 59.7, Centennial Elem School is more mixed than the Illinois school average of 38.9.
Programs
District finance for Plano Cusd 88 reports $15,971 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Centennial Elem School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Plano High School | Larger | No free-lunch data | Similar S:T ratio |
| Emily G Johns School | Larger | No free-lunch data | Similar S:T ratio |
| P H Miller Elem School | Similar size | No free-lunch data | Similar S:T ratio |
| Plano Middle School | Similar size | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Centennial Elem School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 494
- Students per teacher
- 15.4:1
- Resource Index
- 32/100
- Enrollment
- 438
- Students per teacher
- 13.7:1
- Resource Index
- 34/100
- Enrollment
- 358
- Students per teacher
- 11.9:1
- Resource Index
- 40/100
Similar elementary schools in Plano
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 (~351 students)
Frequently asked questions about Centennial Elem School
How many students attend Centennial Elem School?
Centennial Elem School has 351 students enrolled. It is an elementary school in Plano, IL. CCD year-over-year: 326 (2022-23) → 357 (2023-24), up 31.
What is the student-teacher ratio at Centennial Elem School?
The student-teacher ratio at Centennial Elem School is 14:1, which is 0% higher than the Illinois average of 14:1 and 11% lower than the national average of 15.7:1.
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% of enrollment, in Plano, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 59.7/100.
What is the Resource Investment Index for Centennial Elem School?
Centennial Elem School has a Resource Investment Index of 34/100 (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 Centennial Elem School rank among public schools in Plano?
By Resource Investment Index, Centennial Elem School ranks #3 of 5 public schools in Plano, 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 Plano on the city page.
What other schools are in Plano Cusd 88?
Besides Centennial Elem School, Plano Cusd 88 also operates Plano High School (757 students), Emily G Johns School (494 students), and P H Miller Elem School (438 students). See the Plano Cusd 88 district page for the complete list.