Enrollment
1
Washington · 2024-25 NCES data
Other / mixed grade configuration · Shelton, WA
Mason County Detention Center
Federal NCES profile for Mason County Detention Center, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 63/100.
2024-25 NCES dataOther / mixed grade configurationNCES 530790002865
👥 S:T ratio 96
🌟 Gifted program 30
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mason County Detention Center earns 63/100 on the Resource Investment Index, with class sizes smaller than 99% of Washington schools. It is also one of the smallest schools in Washington.
- #1 of 5
- schools in Shelton · Resource Index
- 63
- Resource Index · Higher
- 1:1
- small classes for Washington
- 1
- students enrolled
Mason County Detention Center has class sizes smaller than 99% of Washington schools. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Mason County Detention Center ranks #1 of 5 schools in Shelton, WA.
School address
District: Shelton School District · Washington
NCES ID 530790002865 Verify on NCES CCD record →
Teachers (FTE)
1.0
Federal CCD staff survey
Students per teacher
1:1
vs 17.6:1 Washington avg
-94% vs state
Student-teacher ratio in context
How Mason County Detention Center compares with Washington and U.S. medians
What stands out at Mason County Detention Center
Mason County Detention Center is a small combined-grade school in Shelton, Washington, enrolling 1 students.
Classes run notably small here: at 1:1, Mason County Detention Center is leaner than roughly 99% of Washington schools and 94% under the state's 17.6:1 norm, more adult attention per pupil than most peers.
This is a small campus: fewer students than 99% of Washington schools, with 1 enrolled.
Its Resource Investment Index outscores 94% of the 2,394 Washington schools with a score on record, a top-tier result on this measure.
Its student body is predominantly White (100% of enrollment), among the less diverse in the state (diversity index 0/100).
Among Shelton's public schools, it stands alongside Mountain View Elementary (671 students): Mason County Detention Center is smaller than that campus by headcount and runs leaner classes (1:1 vs 16:1).
Shelton School District also operates Shelton High School (1,455 students) and Mountain View Elementary (671 students) alongside Mason County Detention Center.
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 Mason County Detention Center compares
Mason County Detention Center on the metrics families compare, against Washington and U.S. means.
| Metric | This school | vs Washington | Washington avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 1:1 | ▼ 94% | 17.6:1 | 15.7:1 |
| Enrollment | 1 | top 100% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
1:1
Leaner classes than 100% of US schools, among the more generously staffed nationally.
1
Bigger than 0% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Staffing depth
1:1
students per teacher
- 94% below state mean
Top 1% in Washington - lower ratio than 100% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Funding equity
$16,248
per pupil, district-wide
- below Washington avg of $19,487
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 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 100.0%
Largest group: White at 100.0% of enrollment.
Student-body diversity index 0.0/100
Simpson diversity index - at 0.0, Mason County Detention Center is less mixed than the Washington school average of 53.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Shelton School District, which includes Mason County Detention Center.
$16,248
Per student
-17%
vs Washington
Avg $19,487
-2%
vs U.S.
Avg $16,593
Revenue mix
Local 19.7%
State 67.6%
Federal 12.8%
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 Mason County Detention Center Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Shelton High School | Larger | No free-lunch data | Higher S:T ratio |
| Mountain View Elementary | Larger | No free-lunch data | Higher S:T ratio |
| Olympic Middle School | Larger | No free-lunch data | Higher S:T ratio |
| Oakland Bay Junior High School | Larger | No free-lunch data | Higher S:T ratio |
| Bordeaux Elementary School | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Mason County Detention Center's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,455
- Students per teacher
- 18.9:1
- Resource Index
- 36/100
- Enrollment
- 671
- Students per teacher
- 16:1
- Resource Index
- 32/100
- Enrollment
- 601
- Students per teacher
- 20:1
- Resource Index
- 36/100
- Enrollment
- 544
- Students per teacher
- 16.5:1
- Resource Index
- 38/100
- Enrollment
- 528
- Students per teacher
- 15.5:1
- Resource Index
- 29/100
Similar other schools in Shelton
4 comparable other schools (grades Mixed) serving the same city.
Mountain View Elementary
Standard public school
671 students 16:1 students per teacher
Evergreen Elementary School
Standard public school
378 students 12.2:1 students per teacher
Hood Canal Elementary School
Standard public school
337 students 14.7:1 students per teacher
Choice Middle and High School
Alternative education program
217 students 24.1:1 students per teacher
Similar other 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 (~1 students)
Similar student-teacher ratio (~1:1)
Next steps
Verify locally before acting on Mason County Detention Center's federal record.
- Compare Mason County Detention Center against another school. Compare schools
- Shelton 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 Mason County Detention Center
How many students attend Mason County Detention Center?
Mason County Detention Center has 1 student enrolled. It is a public school in Shelton, WA.
What is the student-teacher ratio at Mason County Detention Center?
The student-teacher ratio at Mason County Detention Center is 1:1, which is 94% lower than the Washington average of 17.6:1 and 94% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Mason County Detention Center?
The largest demographic group at Mason County Detention Center is White at 100.0% of enrollment, in Shelton, WA.
What is the Resource Investment Index for Mason County Detention Center?
Mason County Detention Center has a Resource Investment Index of 63/100 (higher reported resources relative to schools nationally) based on 2 factors: student-teacher ratio. Not a test-score or academic measure (national median ~41/100, see methodology). Limited indicators were available, so the index reflects partial data.
How does Mason County Detention Center rank among schools in Shelton?
By Resource Investment Index, Mason County Detention Center ranks #1 of 5 schools in Shelton, WA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Shelton on the city page.
Is Mason County Detention Center a good school?
Mason County Detention Center earns 63/100 on the Resource Investment Index, with class sizes smaller than 99% of Washington schools. It is also one of the smallest schools in Washington. 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 Shelton School District?
Besides Mason County Detention Center, Shelton School District also operates Shelton High School (1,455 students), Mountain View Elementary (671 students), and Olympic Middle School (601 students). See the Shelton 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.