- Enrollment
- 1,846
- Students per teacher
- 24:1
- Resource Index
- 42/100
Middle school (grades 6-8) · Seatac, WA
Chinook Middle School
Federal NCES profile for Chinook Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 56/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 530354000524
👥 S:T ratio 31
🌟 Gifted program 70
🎓 Counselors 59
📋 Attendance 66
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Chinook Middle School earns 56/100 on the Resource Investment Index, with class sizes near the Washington median. It is also more racially and ethnically mixed than most Washington schools.
- #1 of 8
- public schools in Seatac · Resource Index
- 56
- Resource Index · Higher
- 17.2:1
- students per teacher
- 67.4%
- free-lunch eligible
Chinook Middle School has class sizes near the Washington median. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Chinook Middle School ranks #1 of 8 public schools in Seatac, WA.
School address
District: Highline School District · Washington
NCES ID 530354000524 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+4 students YoY
Chinook Middle School held near 603 students from 2022-23 to 2023-24 (+4 headcount).
Teacher FTE added 36.3 → 37.9 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+4 students YoY 530354000524 · Seatac, WA Middle · MID · TRAD
620 enr · 17.2:1 · 67.4% lunch · RII 56
Nearest enrollment peer: Mount Rainier High School (1,846 students)
Chinook Middle School held near 603 students from 2022-23 to 2023-24 (+4 headcount). Teacher FTE added 36.3 → 37.9 across the same CCD years. Read with this school → · District book → · Washington schools → · Find another →
Chinook Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Mount Rainier
Mount Rainier High School
1,846 students
- Highline High
Highline High School
1,423 students
- Evergreen High
Evergreen High School
1,080 students
- Glacier Middle
Glacier Middle School
803 students
- Cascade Middle 671
Cascade Middle School
671 students
- This school 620
Chinook Middle School
620 students
What this shows Chinook Middle School reports 620 students on the CCD universe file.
How Chinook Middle School compares
Chinook Middle School held steady on CCD headcount: ratios and free-lunch share vs Washington and U.S. means.
| Metric | This school | vs Washington | Washington avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17.2:1 | ▼ 2% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 67.4% | ▲ 50% | 45.0% | 51.7% |
| Enrollment | 620 | top 19% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17.2:1
Leaner classes than 29% of US schools, heavier class loads than most.
620
Bigger than 74% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
67.4%
free-lunch eligible
- 50% 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
17.2:1
students per teacher
- 2% below state mean
Top 58% in Washington - lower ratio than 42% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
13.7%
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
$20,594
per pupil, district-wide
- below Washington avg of $20,912
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors3.0 FTE
Per 207 students, the combined health-and-guidance staffing load for this school.
Discipline context
42
in-school suspensions + 27 out-of-school
Suspension rate: 6.8 per 100 students. Combined in-school and out-of-school rate: 11.1 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 40.0%
African American 19.4%
Asian 15.6%
White 11.3%
Native Hawaiian / Pacific Islander 7.6%
Two or More 6.1%
Largest group: Hispanic or Latino at 40.0% of enrollment.
Student-body diversity index 75.6/100
Simpson diversity index - at 75.6, Chinook Middle School is more mixed than the Washington school average of 53.3.
Programs
Gifted & talented Yes
District finance for Highline School District reports $20,594 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Chinook Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Mount Rainier High School | Larger | Lower economic need | Higher S:T ratio |
| Highline High School | Larger | Similar economic need | Higher S:T ratio |
| Evergreen High School | Larger | Similar economic need | Higher S:T ratio |
| Glacier Middle School | Larger | Similar economic need | Higher S:T ratio |
| Cascade Middle School | Similar size | Similar economic need | Lower S:T ratio |
Comparisons are relative to Chinook Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,423
- Students per teacher
- 23.7:1
- Resource Index
- 39/100
- Enrollment
- 1,080
- Students per teacher
- 19.6:1
- Resource Index
- 43/100
- Enrollment
- 803
- Students per teacher
- 20.1:1
- Resource Index
- 51/100
- Enrollment
- 671
- Students per teacher
- 15.6:1
- Resource Index
- 59/100
Nationwide middle schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~620 students)
Frequently asked questions about Chinook Middle School
How many students attend Chinook Middle School?
Chinook Middle School has 620 students enrolled. It is a middle school in Seatac, WA. CCD year-over-year: 599 (2022-23) → 603 (2023-24), nearly flat (+4).
What is the student-teacher ratio at Chinook Middle School?
The student-teacher ratio at Chinook Middle School is 17.2:1, which is 2% lower than the Washington average of 17.6:1 and 10% 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 Chinook Middle School?
67.4% of students at Chinook Middle School are eligible for free lunch, compared to the Washington average of 45.0%.
What is the racial and ethnic makeup of Chinook Middle School?
The largest demographic group at Chinook Middle School is Hispanic or Latino at 40.0% of enrollment, in Seatac, WA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 75.6/100.
What is the Resource Investment Index for Chinook Middle School?
Chinook Middle School has a Resource Investment Index of 56/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Chinook Middle School rank among public schools in Seatac?
By Resource Investment Index, Chinook Middle School ranks #1 of 8 public schools in Seatac, 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 Seatac on the city page.
What other schools are in Highline School District?
Besides Chinook Middle School, Highline School District also operates Mount Rainier High School (1,846 students), Highline High School (1,423 students), and Evergreen High School (1,080 students). See the Highline School District district page for the complete list.