Enrollment
430
Washington · 2024-25 NCES data
Elementary school (grades K-5) · Mount Vernon, WA
Centennial Elementary School
Federal NCES profile for Centennial Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
2024-25 NCES dataElementary school (grades K-5)NCES 530540002262
👥 S:T ratio 43
🌟 Gifted program 70
🎓 Counselors 14
📋 Attendance 69
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Centennial Elementary School earns 49/100 on the Resource Investment Index, with class sizes smaller than 74% of Washington schools.
- #3 of 8
- elementary schools in Mount Vernon · Resource Index
- 49
- Resource Index · Higher
- 14.3:1
- small classes for Washington
- 68.8%
- free-lunch eligible
Centennial Elementary School has class sizes smaller than 74% of Washington schools. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Centennial Elementary School ranks #3 of 8 elementary schools in Mount Vernon, WA.
School address
District: Mount Vernon School District · Washington
NCES ID 530540002262 Verify on NCES CCD record →
Teachers (FTE)
30.0
Federal CCD staff survey
Students per teacher
14.3:1
vs 17.6:1 Washington avg
-19% vs state
Free-lunch eligible
68.8%
vs 45.0% Washington avg
+53% vs state
Student-teacher ratio in context
How Centennial Elementary School compares with Washington and U.S. medians
What stands out at Centennial Elementary School
Centennial Elementary School is a higher-need, mid-sized elementary school in Mount Vernon, Washington, enrolling 430 students.
Class sizes run a bit leaner than typical: 14.3:1 puts it in the smaller third of Washington schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 68.8% of students eligible for free meals.
With 430 students, its enrollment sits close to the Washington median campus size.
Its Resource Investment Index lands in the upper third of 2,394 scored Washington schools.
Against 400 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #124.
Its student body is led by Hispanic or Latino (65%) and White (30%) (diversity index 49/100).
Counselor access is stretched at roughly 430 students per counselor, well above the ASCA-recommended 250:1 ceiling.
12.6% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Mount Vernon's elementary schools, it stands alongside Madison Elementary (498 students): Centennial Elementary School is smaller than that campus by headcount and runs leaner classes (14.3:1 vs 14.6:1).
Mount Vernon School District also operates Mount Vernon High School (1,849 students) and La Venture Middle School (663 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 Washington and U.S. means.
| Metric | This school | vs Washington | Washington avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.3:1 | ▼ 19% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 68.8% | ▲ 53% | 45.0% | 51.7% |
| Enrollment | 430 | top 42% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.3:1
Leaner classes than 54% of US schools, a middle-of-the-pack class size.
430
Bigger than 52% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
68.8%
free-lunch eligible
- 53% above the Washington average of 45.0%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
14.3:1
students per teacher
- 19% below state mean
Top 26% in Washington - lower ratio than 74% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
12.6%
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
$18,880
per pupil, district-wide
- below Washington avg of $19,487
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 430 students, the combined health-and-guidance staffing load for this school.
Discipline context
5
in-school suspensions + 0 out-of-school
Suspension rate: 1.2 per 100 students. Combined in-school and out-of-school rate: 1.2 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
Hispanic or Latino 65.1%
White 29.8%
Asian 2.1%
Two or More 1.9%
African American 0.7%
American Indian / Alaska Native 0.2%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Hispanic or Latino at 65.1% of enrollment.
Student-body diversity index 48.7/100
Simpson diversity index - at 48.7, Centennial Elementary School is less mixed than the Washington school average of 53.3.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Mount Vernon School District, which includes Centennial Elementary School.
$18,880
Per student
-3%
vs Washington
Avg $19,487
+14%
vs U.S.
Avg $16,593
Revenue mix
Local 19.8%
State 66.5%
Federal 13.7%
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 |
|---|---|---|---|
| Mount Vernon High School | Larger | Similar economic need | Higher S:T ratio |
| La Venture Middle School | Larger | Similar economic need | Higher S:T ratio |
| Mount Baker Middle School | Larger | Similar economic need | Similar S:T ratio |
| Madison Elementary | Similar size | Lower economic need | Similar S:T ratio |
| Jefferson Elementary | Similar size | Lower economic need | Similar 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
- 1,849
- Students per teacher
- 18.1:1
- Resource Index
- 48/100
- Enrollment
- 663
- Students per teacher
- 15.8:1
- Resource Index
- 47/100
- Enrollment
- 569
- Students per teacher
- 14.6:1
- Resource Index
- 46/100
- Enrollment
- 498
- Students per teacher
- 14.6:1
- Resource Index
- 49/100
- Enrollment
- 445
- Students per teacher
- 13.1:1
- Resource Index
- 47/100
Similar elementary schools in Mount Vernon
6 comparable elementary schools (grades K-5) serving the same city.
Madison Elementary
Standard public school
498 students 14.6:1 students per teacher
Jefferson Elementary
Standard public school
445 students 13.1:1 students per teacher
Harriet Rowley
Standard public school
440 students 13.3:1 students per teacher
Conway School District 317
Standard public school
421 students 16.2:1 students per teacher
Little Mountain Elementary
Standard public school
381 students 13.1:1 students per teacher
Washington Elementary School
Standard public school
318 students 11.4:1 students per teacher
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of Washington, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~430 students)
Similar student-teacher ratio (~14.3:1)
Next steps
Verify locally before acting on Centennial Elementary School's federal record.
- Compare Centennial Elementary School against another school. Compare schools
- Mount Vernon School 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 430 students enrolled. It is an elementary school in Mount Vernon, WA.
What is the student-teacher ratio at Centennial Elementary School?
The student-teacher ratio at Centennial Elementary School is 14.3:1, which is 19% lower than the Washington average of 17.6:1 and 9% lower 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?
68.8% of students at Centennial Elementary School are eligible for free lunch, compared to the Washington average of 45.0%.
What is the racial and ethnic makeup of Centennial Elementary School?
The largest demographic group at Centennial Elementary School is Hispanic or Latino at 65.1% of enrollment, in Mount Vernon, WA.
What is the Resource Investment Index for Centennial Elementary School?
Centennial Elementary School has a Resource Investment Index of 49/100 (higher 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 Centennial Elementary School rank among elementary schools in Mount Vernon?
By Resource Investment Index, Centennial Elementary School ranks #3 of 8 elementary schools in Mount Vernon, WA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Mount Vernon on the city page.
Is Centennial Elementary School a good school?
Centennial Elementary School earns 49/100 on the Resource Investment Index, with class sizes smaller than 74% of Washington 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 Mount Vernon School District?
Besides Centennial Elementary School, Mount Vernon School District also operates Mount Vernon High School (1,849 students), La Venture Middle School (663 students), and Mount Baker Middle School (569 students). See the Mount Vernon School 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.