Enrollment
358
Idaho · 2024-25 NCES data
Elementary school (grades K-5) · Lewiston, ID
Centennial Elementary School
Federal NCES profile for Centennial Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 44/100.
2024-25 NCES dataElementary school (grades K-5)NCES 160186000321
👥 S:T ratio 35
🌟 Gifted program 70
🎓 Counselors 28
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Centennial Elementary School earns 44/100 on the Resource Investment Index, with class sizes near the Idaho median.
- #6 of 6
- elementary schools in Lewiston · Resource Index
- 44
- Resource Index · Typical
- 16.3:1
- students per teacher
- 19.7%
- free-lunch eligible
Centennial Elementary School has class sizes near the Idaho median. Computed live against every Idaho school reporting to NCES.
By Resource Investment Index, Centennial Elementary School ranks #6 of 6 elementary schools in Lewiston, ID.
School address
District: Lewiston Independent District · Idaho
NCES ID 160186000321 Verify on NCES CCD record →
Teachers (FTE)
22.0
Federal CCD staff survey
Students per teacher
16.3:1
vs 17.1:1 Idaho avg
-5% vs state
Free-lunch eligible
19.7%
vs 29.3% Idaho avg
-33% vs state
Student-teacher ratio in context
How Centennial Elementary School compares with Idaho and U.S. medians
What stands out at Centennial Elementary School
Centennial Elementary School is a lower-poverty, mid-sized elementary school in Lewiston, Idaho, enrolling 358 students.
At 16.3:1, its student-teacher ratio sits close to the Idaho median, within a few percentage points of the 17.1:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat below the state's typical profile, with 19.7% of students eligible for free meals.
With 358 students, its enrollment sits close to the Idaho median campus size.
Its Resource Investment Index sits near the middle of the pack among 775 scored Idaho schools.
Against 195 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #62.
Its student body is predominantly White (88% of enrollment) (diversity index 22/100).
Counselor availability sits well past the ASCA benchmark, roughly 358 students sharing each counselor, though short of the most stretched campuses.
Lewiston Independent District also operates Lewiston High School (1,288 students) and Jenifer Middle School (561 students) alongside Centennial Elementary 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 Elementary School compares
Centennial Elementary School on the metrics families compare, against Idaho and U.S. means.
| Metric | This school | vs Idaho | Idaho avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.3:1 | ▼ 5% | 17.1:1 | 15.7:1 |
| Free-lunch eligible | 19.7% | ▼ 33% | 29.3% | 51.7% |
| Enrollment | 358 | top 46% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.3:1
Leaner classes than 36% of US schools, a middle-of-the-pack class size.
358
Bigger than 41% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
19.7%
free-lunch eligible
- 33% below the Idaho average of 29.3%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
16.3:1
students per teacher
- 5% below state mean
Top 45% in Idaho - lower ratio than 55% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Funding equity
$11,104
per pupil, district-wide
- below Idaho avg of $11,939
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 358 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 1 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.3 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 88.3%
Hispanic or Latino 5.0%
Two or More 4.7%
American Indian / Alaska Native 1.4%
Asian 0.3%
Native Hawaiian / Pacific Islander 0.3%
Largest group: White at 88.3% of enrollment.
Student-body diversity index 21.5/100
Simpson diversity index - at 21.5, Centennial Elementary School is less mixed than the Idaho school average of 36.3.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Lewiston Independent District, which includes Centennial Elementary School.
$11,104
Per student
-7%
vs Idaho
Avg $11,939
-33%
vs U.S.
Avg $16,593
Revenue mix
Local 43.7%
State 44.3%
Federal 12.0%
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 Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Lewiston High School | Larger | Similar economic need | Similar S:T ratio |
| Jenifer Middle School | Larger | Similar economic need | Similar S:T ratio |
| Sacajawea Middle School | Larger | Similar economic need | Similar S:T ratio |
| Whitman Elementary School | Similar size | Similar economic need | Lower S:T ratio |
| Camelot Elementary School | Similar size | Lower economic need | Lower S:T ratio |
Comparisons are relative to Centennial Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,288
- Students per teacher
- 17.4:1
- Resource Index
- 50/100
- Enrollment
- 561
- Students per teacher
- 16:1
- Resource Index
- 50/100
- Enrollment
- 547
- Students per teacher
- 15.2:1
- Resource Index
- 52/100
- Enrollment
- 332
- Students per teacher
- 14.4:1
- Resource Index
- 49/100
- Enrollment
- 310
- Students per teacher
- 14.8:1
- Resource Index
- 50/100
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of Idaho, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~358 students)
Next steps
Verify locally before acting on Centennial Elementary School's federal record.
- Compare Centennial Elementary School against another school. Compare schools
- Lewiston Independent District'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 Elementary School
How many students attend Centennial Elementary School?
Centennial Elementary School has 358 students enrolled. It is an elementary school in Lewiston, ID.
What is the student-teacher ratio at Centennial Elementary School?
The student-teacher ratio at Centennial Elementary School is 16.3:1, which is 5% lower than the Idaho average of 17.1:1 and 4% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Centennial Elementary School?
19.7% of students at Centennial Elementary School are eligible for free lunch, compared to the Idaho average of 29.3%.
What is the racial and ethnic makeup of Centennial Elementary School?
The largest demographic group at Centennial Elementary School is White at 88.3% of enrollment, in Lewiston, ID.
What is the Resource Investment Index for Centennial Elementary School?
Centennial Elementary School has a Resource Investment Index of 44/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Centennial Elementary School rank among elementary schools in Lewiston?
By Resource Investment Index, Centennial Elementary School ranks #6 of 6 elementary schools in Lewiston, ID. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Lewiston on the city page.
Is Centennial Elementary School a good school?
Centennial Elementary School earns 44/100 on the Resource Investment Index, with class sizes near the Idaho 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 Lewiston Independent District?
Besides Centennial Elementary School, Lewiston Independent District also operates Lewiston High School (1,288 students), Jenifer Middle School (561 students), and Sacajawea Middle School (547 students). See the Lewiston Independent District 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.