Enrollment
514
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Bartlett, IL
Centennial School
Federal NCES profile for Centennial School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
2024-25 NCES dataElementary school (grades K-5)NCES 171371005566
👥 S:T ratio 34
🌟 Gifted program 30
📋 Attendance 64
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Centennial School earns 43/100 on the Resource Investment Index, with class sizes larger than 84% of Illinois schools.
- #1 of 5
- elementary schools in Bartlett · Resource Index
- 43
- Resource Index · Typical
- 16.6:1
- large classes for Illinois
- 514
- students enrolled
Centennial School has class sizes larger than 84% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Centennial School ranks #1 of 5 elementary schools in Bartlett, IL.
School address
Teachers (FTE)
31.0
Federal CCD staff survey
Students per teacher
16.6:1
vs 14:1 Illinois avg
+19% vs state
Student-teacher ratio in context
How Centennial School compares with Illinois and U.S. medians
What stands out at Centennial School
Centennial School is a mid-sized elementary school in Bartlett, Illinois, enrolling 514 students.
Class loads run somewhat heavier than typical: 16.6:1 puts it in the larger third of Illinois schools by student-teacher ratio.
Enrollment of 514 puts it in the larger third of Illinois schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is led by White (61%) and Asian (16%) (diversity index 58/100).
14.4% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Bartlett's elementary schools, it stands alongside Prairieview Elementary School (681 students): Centennial School is smaller than that campus by headcount and runs leaner classes (16.6:1 vs 29.6:1).
Sd U-46 also operates South Elgin High School (2,665 students) and Elgin High School (2,576 students) alongside Centennial 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 Centennial School compares
Centennial 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 | 16.6:1 | ▲ 19% | 14:1 | 15.7:1 |
| Enrollment | 514 | top 29% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.6:1
Leaner classes than 33% of US schools, heavier class loads than most.
514
Bigger than 63% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
16.6:1
students per teacher
- 19% above state mean
Top 84% in Illinois - lower ratio than 16% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
14.4%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$17,947
per pupil, district-wide
- above Illinois avg of $17,042
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
3
in-school suspensions + 0 out-of-school
Suspension rate: 0.6 per 100 students. Combined in-school and out-of-school rate: 0.6 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 61.1%
Asian 16.0%
Hispanic or Latino 13.4%
Two or More 5.6%
African American 3.7%
American Indian / Alaska Native 0.2%
Largest group: White at 61.1% of enrollment.
Student-body diversity index 57.9/100
Simpson diversity index - at 57.9, Centennial School is more mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Sd U-46, which includes Centennial School.
$17,947
Per student
+5%
vs Illinois
Avg $17,042
+8%
vs U.S.
Avg $16,593
Revenue mix
Local 43.9%
State 48.7%
Federal 7.5%
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 Centennial School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| South Elgin High School | Larger | No free-lunch data | Similar S:T ratio |
| Elgin High School | Larger | No free-lunch data | Similar S:T ratio |
| Larkin High School | Larger | No free-lunch data | Similar S:T ratio |
| Bartlett High School | Larger | No free-lunch data | Lower S:T ratio |
| Streamwood High School | Larger | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Centennial School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,665
- Students per teacher
- 15.5:1
- Resource Index
- 47/100
- Enrollment
- 2,576
- Students per teacher
- 16.8:1
- Resource Index
- 49/100
- Enrollment
- 2,174
- Students per teacher
- 16.9:1
- Resource Index
- 47/100
- Enrollment
- 2,037
- Students per teacher
- 14.9:1
- Resource Index
- 51/100
- Enrollment
- 1,890
- Students per teacher
- 16.7:1
- Resource Index
- 37/100
Similar elementary schools in Bartlett
4 comparable elementary schools (grades K-5) serving the same city.
Prairieview Elementary School
Standard public school
681 students 29.6:1 students per teacher
Bartlett Elem School
Standard public school
613 students 25.5:1 students per teacher
Nature Ridge Elem School
Standard public school
458 students 14.8:1 students per teacher
Hawk Hollow Elem School
Standard public school
283 students 14.9:1 students per teacher
Similar elementary 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 (~514 students)
Similar student-teacher ratio (~16.6:1)
Next steps
Verify locally before acting on Centennial School's federal record.
- Compare Centennial School against another school. Compare schools
- Sd U-46'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 Centennial School
How many students attend Centennial School?
Centennial School has 514 students enrolled. It is an elementary school in Bartlett, IL.
What is the student-teacher ratio at Centennial School?
The student-teacher ratio at Centennial School is 16.6:1, which is 19% higher than the Illinois average of 14:1 and 6% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Centennial School?
The largest demographic group at Centennial School is White at 61.1% of enrollment, in Bartlett, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 57.9/100.
What is the Resource Investment Index for Centennial School?
Centennial School has a Resource Investment Index of 43/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Centennial School rank among elementary schools in Bartlett?
By Resource Investment Index, Centennial School ranks #1 of 5 elementary schools in Bartlett, 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 Bartlett on the city page.
Is Centennial School a good school?
Centennial School earns 43/100 on the Resource Investment Index, with class sizes larger than 84% of Illinois schools. 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 Sd U-46?
Besides Centennial School, Sd U-46 also operates South Elgin High School (2,665 students), Elgin High School (2,576 students), and Larkin High School (2,174 students). See the Sd U-46 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.