Serving 145 students in grades Kindergarten-5, Sanislo Elementary 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 30-34% (which is lower than the Washington state average of 41%). The percentage of students achieving proficiency in reading/language arts is 25-29% (which is lower than the Washington state average of 53%).
The student-teacher ratio of 10:1 is lower than the Washington state level of 17:1.
Minority enrollment is 80% of the student body (majority Black and Hispanic), which is higher than the Washington state average of 53% (majority Hispanic and Asian).
Quick Facts (2026)
- Grades: Kindergarten-5
- Enrollment: 145 students
- Student-Teacher Ratio: 10:1
- Minority Enrollment: 80%
- Overall Testing Rank: Bottom 50% in WA
- Math Proficiency: 30-34% (Btm 50%)
- Reading Proficiency: 25-29% (Btm 50%)
- Science Proficiency: 21-39% (Btm 50%)
- Attendance Zone: Sanislo Elementary School serves the southern part of Seattle, WA, covering an area of approximately 1.3 square miles. Families in this zone can typically reach the school within 5 to 10 minutes, with an average distance of 0.6 miles to the nearest edge and a maximum distance of 1.1 miles to the furthest point.
- Source: National Center for Education Statistics (NCES), WA Dept. of Education
School Overview
Sanislo Elementary School's student population of 145 students has declined by 25% over five school years.
The teacher population of 14 teachers has declined by 17% over five school years.
Grades Offered
Grades Kindergarten-5
(No virtual instruction)
(No virtual instruction)
Total Students
145 students
Total Classroom Teachers
14 teachers
School Rankings
Sanislo Elementary 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 Sanislo Elementary School is 0.79, 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
#1691 out of 2088 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
30-34%
41%
Reading/Language Arts Test Scores (% Proficient)
25-29%
53%
Science Test Scores (% Proficient)
21-39%
49%
Student-Teacher Ratio
10:1
17:1
American Indian
n/a
1%
Asian
12%
9%
Hispanic
22%
27%
Black
28%
5%
White
20%
47%
Hawaiian
n/a
2%
Two or more races
18%
9%
All Ethnic Groups
Chronically Absent Students
(22-23)53.8%
34.7%
Eligible for Free Lunch
59%
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 Sanislo Elementary School's ranking?
Sanislo Elementary School is ranked #1691 out of 2,088 schools, which ranks it among the bottom 50% of public schools in Washington.
What percent of students have achieved state testing proficiency in math and reading?
30-34% of students have achieved math proficiency (compared to the 41% WA state average), while 25-29% of students have achieved reading proficiency (compared to the 53% WA state average).
How many students attend Sanislo Elementary School?
145 students attend Sanislo Elementary School.
What is the racial composition of the student body?
28% of Sanislo Elementary School students are Black, 22% of students are Hispanic, 20% of students are White, 18% of students are Two or more races, and 12% of students are Asian.
What is the student-teacher ratio of Sanislo Elementary School?
Sanislo Elementary School has a student ration of 10:1, which is lower than the Washington state average of 17:1.
What grades does Sanislo Elementary School offer ?
Sanislo Elementary School offers enrollment in grades Kindergarten-5 (No virtual instruction).
What school district is Sanislo Elementary School part of?
Sanislo Elementary School is part of Seattle School District No. 1.
In what neighborhood is Sanislo Elementary School located?
Sanislo Elementary School is located in the West Seattle neighborhood of Seattle, WA. There are 13 other public schools located in West Seattle.
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