Enrollment
777
Washington · 2024-25 NCES data
Middle school (grades 6-8) · Everett, WA
Federal NCES profile for Explorer Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
The verdict
Explorer Middle School earns 47/100 on the Resource Investment Index, with class sizes near the Washington median. It is also more racially and ethnically mixed than most Washington schools.
Explorer Middle School has class sizes near the Washington median. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Explorer Middle School ranks #4 of 6 middle schools in Everett, WA.
NCES ID 530543001910 Verify on NCES CCD record →
Enrollment
777
Washington · 2024-25 NCES data
Teachers (FTE)
46.0
Federal CCD staff survey
Students per teacher
16.9:1
vs 17.6:1 Washington avg
-4% vs state
Free-lunch eligible
60.2%
vs 45.0% Washington avg
+34% vs state
How Explorer Middle School compares with Washington and U.S. medians
At or below state median
16.9:1 - 0.7 below the Washington state median of 17.6:1, indicating smaller average class loads than typical schools in the state.
Explorer Middle School is a higher-need, large middle school in Everett, Washington, enrolling 777 students.
At 16.9:1, its student-teacher ratio sits close to the Washington median, within a few percentage points of the 17.6:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat above the state's typical profile, with 60.2% of students eligible for free meals.
Enrollment of 777 puts it in the larger third of Washington schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 2,394 scored Washington schools.
Against 248 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #64.
Its student body is led by Hispanic or Latino (39%) and White (27%), more mixed than most schools in the state (diversity index 74/100).
Counselor coverage runs a bit thin, about 259 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 25.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Discipline events run high: 182 in- and out-of-school suspensions were reported for 777 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Among Everett's middle schools, it stands alongside Gateway Middle School (1,057 students): Explorer Middle School is smaller than that campus by headcount and runs leaner classes (16.9:1 vs 26.4:1).
Mukilteo School District also operates Kamiak High School (2,384 students) and Mariner High School (2,106 students) alongside Explorer Middle 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
Explorer Middle 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 | 16.9:1 | ▼ 4% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 60.2% | ▲ 34% | 45.0% | 51.7% |
| Enrollment | 777 | top 11% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: Hispanic or Latino at 39.4% of enrollment.
Simpson diversity index - at 73.9, Explorer Middle School is more mixed than the Washington school average of 53.3.
District-wide per-pupil expenditure for Mukilteo School District, which includes Explorer Middle School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Kamiak High School | Larger | Lower economic need | Higher S:T ratio |
| Mariner High School | Larger | Similar economic need | Higher S:T ratio |
| Voyager Middle School | Similar size | Similar economic need | Higher S:T ratio |
| Olympic View Middle School | Similar size | Lower economic need | Higher S:T ratio |
| Harbour Pointe Middle School | Similar size | Lower economic need | Similar S:T ratio |
Comparisons are relative to Explorer Middle School's own figures; each column derives from NCES Common Core of Data.
5 comparable middle schools (grades 6-8) serving the same city.
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.
Next steps
Verify locally before acting on Explorer Middle School's federal record.
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.
Explorer Middle School has 777 students enrolled. It is a middle school in Everett, WA.
The student-teacher ratio at Explorer Middle School is 16.9:1, which is 4% lower than the Washington average of 17.6:1 and 8% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
60.2% of students at Explorer Middle School are eligible for free lunch, compared to the Washington average of 45.0%.
The largest demographic group at Explorer Middle School is Hispanic or Latino at 39.4% of enrollment, in Everett, WA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 73.9/100.
Explorer Middle School has a Resource Investment Index of 47/100 (typical 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).
By Resource Investment Index, Explorer Middle School ranks #4 of 6 middle schools in Everett, WA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Everett on the city page.
Explorer Middle School earns 47/100 on the Resource Investment Index, with class sizes near the Washington median. It is also more racially and ethnically mixed than most 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.
Besides Explorer Middle School, Mukilteo School District also operates Kamiak High School (2,384 students), Mariner High School (2,106 students), and Voyager Middle School (902 students). See the Mukilteo School District district page for the complete list.
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.
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PlainSchools, “Explorer Middle School, Everett WA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/explorer-middle-school-wa
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