Chief Sealth International High School is a public high school in the Seattle Public Schools district of Seattle, Washington. Opened in 1957 in southern West Seattle, Chief Sealth students comprise one of the most ethnically and culturally diverse student bodies in Washington State.
Serving 1,201 students in grades 9-12, Chief Sealth International High School ranks in the top 50% of all schools in Washington for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 25-29% (which is lower than the Washington state average of 40%). The percentage of students achieving proficiency in reading/language arts is 70-74% (which is higher than the Washington state average of 53%).
The student:teacher ratio of 18:1 is higher than the Washington state level of 16:1.
Minority enrollment is 76% of the student body (majority Hispanic and Black), which is higher than the Washington state average of 52% (majority Hispanic and Asian).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 1,201 students
- Student:Teacher Ratio: 18:1
- Minority Enrollment: 76%
- Graduation Rate: 89% (Top 30% in WA)
- Overall Testing Rank: Top 50%
- Math Proficiency: 25-29% (Btm 50%)
- Reading Proficiency: 70-74% (Top 20%)
- Science Proficiency: 35-39% (Btm 50%)
- Source: National Center for Education Statistics (NCES), WA Dept. of Education
Top Rankings
Chief Sealth International High School ranks among the top 20% of public schools in Washington for:
Category
Attribute
Reading/Language Arts Proficiency
Diversity
School Overview
Chief Sealth International High School's student population of 1,201 students has grown by 13% over five school years.
The teacher population of 66 teachers has grown by 11% over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
1,201 students
Gender %
Total Classroom Teachers
66 teachers
Year Founded
1957
Colors
White, Red, Columbia blue
School Rankings
Chief Sealth International High School ranks within the top 50% of all 2,113 schools in Washington (based off of combined math and reading proficiency testing data).
The diversity score of Chief Sealth International High School is 0.80, which is more than the diversity score at state average of 0.69. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#917 out of 2113 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
25-29%
40%
Reading/Language Arts Test Scores (% Proficient)
70-74%
53%
Science Test Scores (% Proficient)
35-39%
49%
Student : Teacher Ratio
18:1
16:1
American Indian
1%
1%
Asian
14%
9%
Hispanic
27%
26%
Black
22%
5%
White
24%
48%
Hawaiian
2%
2%
Two or more races
10%
9%
All Ethnic Groups
Graduation Rate
89%
84%
Eligible for Free Lunch
56%
49%
Eligible for Reduced Lunch
11%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), WA Dept. of Education
School Notes
- School Mascot: Seahawk
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Chief Sealth International High School's ranking?
Chief Sealth International High School is ranked #917 out of 2,113 schools, which ranks it among the top 50% of public schools in Washington.
What schools are Chief Sealth International High School often compared to?
Chief Sealth International High Schoolis often viewed alongside schools like West Seattle High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
25-29% of students have achieved math proficiency (compared to the 40% WA state average), while 70-74% of students have achieved reading proficiency (compared to the 53% WA state average).
What is the graduation rate of Chief Sealth International High School?
The graduation rate of Chief Sealth International High School is 89%, which is higher than the Washington state average of 84%.
How many students attend Chief Sealth International High School?
1,201 students attend Chief Sealth International High School.
What is the racial composition of the student body?
27% of Chief Sealth International High School students are Hispanic, 24% of students are White, 22% of students are Black, 14% of students are Asian, 10% of students are Two or more races, 2% of students are Hawaiian, and 1% of students are American Indian.
What is the student:teacher ratio of Chief Sealth International High School?
Chief Sealth International High School has a student ration of 18:1, which is higher than the Washington state average of 16:1.
What grades does Chief Sealth International High School offer ?
Chief Sealth International High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Chief Sealth International High School part of?
Chief Sealth International High School is part of Seattle School District No. 1.
In what neighborhood is Chief Sealth International High School located?
Chief Sealth International High School is located in the South Delridge neighborhood of Seattle, WA. There are 1 other public schools located in South Delridge.
School Reviews
Review Chief Sealth International High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
Parents’ Guide to Special Education
Special education law is not easy to decipher, with several regulations that govern special education services for disabled students. In this article, learn about the core components of the laws, rights, and individual education plans that can help create the best public school environment for your child.
Surveillance Cameras: Violation of Rights or Improved Security?
A school district in Virginia has given the green light to schools that want to install surveillance cameras in common areas like cafeterias and hallways. We’ll look at whether this is a violation of student privacy or the best way to keep order in schools.
Teachers in 19 States Allowed to Physically Punish Students
As of 2014, nineteen states still allow corporal punishment – spanking and paddling the most common choices – in their public schools. However, some argue that not only are these punishments physically harmful, they also are disproportionately administered to students of color. As a result, House democrats have taken up the issue in a new bill that would ban all forms of corporal punishment nationwide.
