Average
#1304 of 2,228 schools in WA
Chief Sealth International High School
High School · Seattle School District No. 1
2600 SW Thistle, Seattle, WA 98126
Enrollment
1,201
Student-Teacher
18.2:1
Score
6.0
Grades
9th – 12th
Enrollment
1,201
Student-Teacher
18.2:1
Score
6.0
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
Washington schools
#1,304 of 2,228
In Seattle
#101 of 123
public schools
In district
#93 of 106
Seattle School District No. 1
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Chief Sealth International High School
High School in Seattle · grades 9th – 12th. Start here, then compare fit against nearby and district options.
David T. Denny International Middle School
0.0 mi away. Use as a geographic alternative in the same move search.
Roxhill Elementary School
0.5 mi away. Use as a geographic alternative in the same move search.
About Chief Sealth International High School
Chief Sealth International High School is a public high school in Seattle, WA, part of Seattle School District No. 1. Chief Sealth International High School serves approximately 1,201 students, and covers grades 9th-12th, and has a 18.2:1 student-teacher ratio. Chief Sealth International High School has a current MySchoolScout rating of 6.0 out of 10 and ranks #1,304 of 2,228 schools in WA.
Structured state assessment records for Chief Sealth International High School show 42% math proficiency (multi-year average, 2009-2024) and 69% reading/ELA proficiency (multi-year average, 2009-2024).
- This school 6.0 · Average
- District avg 7.0
- WA avg 5.8
What Parents Should Know
53% of students at Chief Sealth International High School were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
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Chief Sealth International High School — Students at Chief Sealth International High School score 32% proficient, which is below what's typical for similar communities (expected: 42%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
55.9%
Students qualifying for federal meal assistance
Test Scores WA SBA (2023-24)
Based on 29 test records from WA state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
Source: EdFacts (NCES) and state assessment data. Growth score: 4.4/10.
How Chief Sealth International High School Compares
See how Chief Sealth International High School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
2600 SW Thistle, Seattle, WA 98126
Nearby Alternatives
Families considering Chief Sealth International High School may also want to explore other high schools in the area. West Seattle Elementary School (rated 9.4/10, 0.9 miles away), which scores notably higher. Another option is Gatewood Elementary School (rated 8.9/10, 1.3 miles away), which scores notably higher. Additionally, Arbor Heights Elementary School (rated 8.6/10, 1.5 miles away), which scores notably higher. For more schools in Seattle, see our Seattle schools guide .
Nearby Schools
20 within 2.0 mi| School | Distance | Rating |
|---|---|---|
| David T. Denny International Middle School Seattle | 0.0 mi | 6.4 |
| Roxhill Elementary School Seattle | 0.5 mi | 5.6 |
| Bridges Transition Seattle | 0.8 mi | 3.4 |
| Sanislo Elementary School Seattle | 0.8 mi | 5.8 |
| THE COMMUNITY OF WEST SEATTLE Seattle | 0.8 mi | — |
| OUR LADY OF GUADALUPE SCHOOL Seattle | 0.8 mi | 7.3 |
| West Seattle Elementary School Seattle | 0.9 mi | 9.4 |
| EXPLORER WEST MIDDLE SCHOOL Seattle | 1.1 mi | 7.4 |
| Summit Public School: Atlas Seattle | 1.0 mi | 4.5 |
| Highland Park Elementary School Seattle | 0.9 mi | 7.8 |
| THE BRIDGE SCHOOL Seattle | 1.3 mi | 5.2 |
| Louisa Boren STEM K-8 Seattle | 1.3 mi | 5.0 |
| TAPROOT SCHOOL Seattle | 1.1 mi | — |
| Arbor Heights Elementary School Seattle | 1.5 mi | 8.6 |
| Gatewood Elementary School Seattle | 1.3 mi | 8.9 |
| Fairmount Park Elementary School Seattle | 1.7 mi | 7.4 |
| White Center Heights Elementary Seattle | 1.5 mi | 6.7 |
| Mount View Elementary Seattle | 1.8 mi | 4.8 |
| ONE SCHOOL GLOBAL NORTH AMERICA SEATTLE CAMPUS Seattle | 1.4 mi | — |
| WEST SEATTLE MONTESSORI Seattle | 2.0 mi | 6.2 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 98126 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$114,030
Median Home Value
$751,900
Median Rent
$1,708/mo
Population
22,433
College Educated
59.8%
Homeownership
60.4%
Avg Commute
29.6 min
Poverty Rate
9.2%
Median Age
38.3
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Cedarcrest High School Duvall, WA | 6.0 |
| Central Valley High School Spokane Valley, WA | 6.0 |
| Enumclaw Sr High School Enumclaw, WA | 6.1 |
| Lynden High School Lynden, WA | 6.1 |
| North Kitsap High School Poulsbo, WA | 6.1 |
| Edmonds Woodway High School Edmonds, WA | 5.8 |
Frequently Asked Questions
Common questions about Chief Sealth International High School
What grades does Chief Sealth International High School serve?
Chief Sealth International High School serves students in grades 9th through 12th.
How many students attend Chief Sealth International High School?
Chief Sealth International High School has an enrollment of approximately 1,201 students.
What is the student-teacher ratio at Chief Sealth International High School?
The student-teacher ratio at Chief Sealth International High School is 18.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Chief Sealth International High School rank in WA?
Chief Sealth International High School ranks #1,304 of 2,228 schools in WA.
What is Chief Sealth International High School's MySchoolScout rating?
Chief Sealth International High School has a current MySchoolScout rating of 6.0 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Chief Sealth International High School?
Based on loaded state assessment records, Chief Sealth International High School has 42% math proficiency (multi-year average, 2009-2024) and 69% reading/ELA proficiency (multi-year average, 2009-2024).
Is Chief Sealth International High School a charter school?
No, Chief Sealth International High School is not a charter school. It is a traditional public school operated by the local school district.
Is Chief Sealth International High School a Title I school?
No, Chief Sealth International High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Chief Sealth International High School?
55.9% of students at Chief Sealth International High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 1,201
- Student-Teacher Ratio
- 18.2:1
- Teachers (FTE)
- 66
- Free/Reduced Lunch
- 55.9%
- Type
- regular
- Setting
- Large City
- County
- King County
- Chronic Absenteeism (SY 2022-23)
- 53.0%
- Phone
- (206) 252-8550
Resources & Links
District
Seattle School District No. 1- District Enrollment
- 50,770
- Schools in District
- 109
- Per-Pupil Spending
- $21,806
- District Rank
- #93 of 106
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