Serving 582 students in grades 6-8, Sylvester Middle School ranks in the bottom 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 29% (which is lower than the Washington state average of 41%). The percentage of students achieving proficiency in reading/language arts is 46% (which is lower than the Washington state average of 53%).
The student-teacher ratio of 19:1 is higher than the Washington state level of 17:1.
Minority enrollment is 63% of the student body (majority Hispanic), which is higher than the Washington state average of 53% (majority Hispanic).
Quick Facts (2026-27)
- Grades: 6-8
- Enrollment: 582 students
- Student-Teacher Ratio: 19:1
- Minority Enrollment: 63%
- Overall Testing Rank: Bottom 50% in WA
- Math Proficiency: 29% (Btm 50%)
- Reading Proficiency: 46% (Btm 50%)
- Science Proficiency: 44% (Btm 50%)
- Attendance Zone: Sylvester Middle School serves the northwest part of Seattle, WA, covering an area of approximately 13.7 square miles. Most students live within a 5-10 minute drive of the school, with an average distance of 1.6 miles to the nearest edge of the attendance zone, which extends up to 3.6 miles at its furthest point.
- Source: National Center for Education Statistics (NCES), WA Dept. of Education
School Overview
Sylvester Middle School's student population of 582 students has declined by 16% over five school years.
The teacher population of 30 teachers has declined by 11% over five school years.
Grades Offered
Grades 6-8
(No virtual instruction)
(No virtual instruction)
Total Students
582 students
Total Classroom Teachers
30 teachers
School Calendar
School Rankings
Sylvester Middle School ranks within the bottom 50% of all 2,088 schools in Washington (based off of combined math and reading proficiency testing data).
The diversity score of Sylvester Middle School is 0.74, 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
#1455 out of 2088 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
29%
41%
Reading/Language Arts Test Scores (% Proficient)
46%
53%
Science Test Scores (% Proficient)
44%
49%
Student-Teacher Ratio
19:1
17:1
American Indian
2%
1%
Asian
8%
9%
Hispanic
33%
27%
Black
8%
5%
White
37%
47%
Hawaiian
2%
2%
Two or more races
10%
9%
All Ethnic Groups
Chronically Absent Students
(22-23)40.4%
34.7%
Eligible for Free Lunch
41%
39%
Eligible for Reduced Lunch
8%
9%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), WA Dept. of Education
Frequently Asked Questions
What is Sylvester Middle School's ranking?
Sylvester Middle School is ranked #1455 out of 2,088 schools, which ranks it among the bottom 50% of public schools in Washington.
What schools are Sylvester Middle School often compared to?
Sylvester Middle Schoolis often viewed alongside schools like Pacific Middle School, Chinook Middle School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
29% of students have achieved math proficiency (compared to the 41% WA state average), while 46% of students have achieved reading proficiency (compared to the 53% WA state average).
How many students attend Sylvester Middle School?
582 students attend Sylvester Middle School.
What is the racial composition of the student body?
37% of Sylvester Middle School students are White, 33% of students are Hispanic, 10% of students are Two or more races, 8% of students are Asian, 8% of students are Black, 2% of students are American Indian, and 2% of students are Hawaiian.
What is the student-teacher ratio of Sylvester Middle School?
Sylvester Middle School has a student ration of 19:1, which is higher than the Washington state average of 17:1.
What grades does Sylvester Middle School offer ?
Sylvester Middle School offers enrollment in grades 6-8 (No virtual instruction).
What school district is Sylvester Middle School part of?
Sylvester Middle School is part of Highline School District.
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