Enrollment
506
Washington · 2024-25 NCES data
Middle school (grades 6-8) · Enumclaw, WA
Thunder Mountain Middle School
Federal NCES profile for Thunder Mountain Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 24/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 530000102795
👥 S:T ratio 8
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 59
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Thunder Mountain Middle School earns 24/100 on the Resource Investment Index, with class sizes larger than 90% of Washington schools.
- #8 of 9
- public schools in Enumclaw · Resource Index
- 24
- Resource Index · Lower
- 23:1
- large classes for Washington
- 21.1%
- free-lunch eligible
Thunder Mountain Middle School has class sizes larger than 90% of Washington schools. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Thunder Mountain Middle School ranks #8 of 9 public schools in Enumclaw, WA.
School address
District: Enumclaw School District · Washington
NCES ID 530000102795 Verify on NCES CCD record →
Teachers (FTE)
22.0
Federal CCD staff survey
Students per teacher
23:1
vs 17.6:1 Washington avg
+31% vs state
Free-lunch eligible
21.1%
vs 45.0% Washington avg
-53% vs state
Student-teacher ratio in context
How Thunder Mountain Middle School compares with Washington and U.S. medians
What stands out at Thunder Mountain Middle School
Thunder Mountain Middle School is a mid-sized middle school in Enumclaw, Washington, enrolling 506 students.
Class loads run heavy: 23:1 is larger than about 90% of Washington schools and 31% above the 17.6:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 21.1% of students eligible for free meals.
Enrollment of 506 puts it in the larger third of Washington schools by headcount.
Its Resource Investment Index trails 95% of the 2,394 Washington schools with a score on record, one of the lower results on this measure.
Among 452 similarly sized, similarly resourced-need Washington schools statewide, it ranks #445, in the lower tier once campus size and economic need are matched.
Its student body is led by White (68%) and Hispanic or Latino (19%) (diversity index 49/100).
Counselor access is stretched at roughly 506 students per counselor, well above the ASCA-recommended 250:1 ceiling.
16.4% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Enumclaw's middle schools, it stands alongside Enumclaw Middle School (522 students): Thunder Mountain Middle School is smaller than that campus by headcount and runs heavier classes (23:1 vs 21.8:1).
Enumclaw School District also operates Enumclaw Sr High School (1,333 students) and Enumclaw Middle School (522 students) alongside Thunder Mountain 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
How Thunder Mountain Middle School compares
Thunder Mountain 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 | 23:1 | ▲ 31% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 21.1% | ▼ 53% | 45.0% | 51.7% |
| Enrollment | 506 | top 30% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
23:1
Leaner classes than 8% of US schools, heavier class loads than most.
506
Bigger than 62% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
21.1%
free-lunch eligible
- 53% below the Washington average of 45.0%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
23:1
students per teacher
- 31% above state mean
Top 90% in Washington - lower ratio than 10% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
16.4%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$15,976
per pupil, district-wide
- below Washington avg of $19,487
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors1.0 FTE
Per 506 students, the combined health-and-guidance staffing load for this school.
Discipline context
53
in-school suspensions + 41 out-of-school
Suspension rate: 10.5 per 100 students. Combined in-school and out-of-school rate: 18.6 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 68.2%
Hispanic or Latino 18.6%
Asian 6.5%
Two or More 4.5%
American Indian / Alaska Native 1.2%
African American 0.8%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 68.2% of enrollment.
Student-body diversity index 49.4/100
Simpson diversity index - at 49.4, Thunder Mountain Middle School is less mixed than the Washington school average of 53.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Enumclaw School District, which includes Thunder Mountain Middle School.
$15,976
Per student
-18%
vs Washington
Avg $19,487
-4%
vs U.S.
Avg $16,593
Revenue mix
Local 23.9%
State 67.7%
Federal 8.4%
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 Thunder Mountain Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Enumclaw Sr High School | Larger | Similar economic need | Lower S:T ratio |
| Enumclaw Middle School | Similar size | Similar economic need | Similar S:T ratio |
| Byron Kibler Elementary School | Similar size | Similar economic need | Lower S:T ratio |
| Black Diamond Elementary | Similar size | Similar economic need | Lower S:T ratio |
| Westwood Elementary School | Similar size | Similar economic need | Lower S:T ratio |
Comparisons are relative to Thunder Mountain Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,333
- Students per teacher
- 20.8:1
- Resource Index
- 33/100
- Enrollment
- 522
- Students per teacher
- 21.8:1
- Resource Index
- 27/100
- Enrollment
- 442
- Students per teacher
- 17:1
- Resource Index
- 46/100
- Enrollment
- 414
- Students per teacher
- 17.3:1
- Resource Index
- 44/100
- Enrollment
- 409
- Students per teacher
- 17:1
- Resource Index
- 51/100
Similar middle schools in Enumclaw
1 comparable middle schools (grades 6-8) serving the same city.
Similar middle 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 (~506 students)
Next steps
Verify locally before acting on Thunder Mountain Middle School's federal record.
- Compare Thunder Mountain Middle School against another school. Compare schools
- Enumclaw 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 Thunder Mountain Middle School
How many students attend Thunder Mountain Middle School?
Thunder Mountain Middle School has 506 students enrolled. It is a middle school in Enumclaw, WA.
What is the student-teacher ratio at Thunder Mountain Middle School?
The student-teacher ratio at Thunder Mountain Middle School is 23:1, which is 31% higher than the Washington average of 17.6:1 and 46% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Thunder Mountain Middle School?
21.1% of students at Thunder Mountain Middle School are eligible for free lunch, compared to the Washington average of 45.0%.
What is the racial and ethnic makeup of Thunder Mountain Middle School?
The largest demographic group at Thunder Mountain Middle School is White at 68.2% of enrollment, in Enumclaw, WA.
What is the Resource Investment Index for Thunder Mountain Middle School?
Thunder Mountain Middle School has a Resource Investment Index of 24/100 (lower 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 Thunder Mountain Middle School rank among public schools in Enumclaw?
By Resource Investment Index, Thunder Mountain Middle School ranks #8 of 9 public schools in Enumclaw, WA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Enumclaw on the city page.
Is Thunder Mountain Middle School a good school?
Thunder Mountain Middle School earns 24/100 on the Resource Investment Index, with class sizes larger than 90% 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 Enumclaw School District?
Besides Thunder Mountain Middle School, Enumclaw School District also operates Enumclaw Sr High School (1,333 students), Enumclaw Middle School (522 students), and Byron Kibler Elementary School (442 students). See the Enumclaw 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.