WA
Regular School
High School
Mercer Island High School
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(206) 236-3345
Student Enrollment & Staffing Overview
NCES 2024-2025Total Students
1,439
Teachers (FTE)
76.4
Student-Teacher Ratio
18.8:1
FRPL Eligible
102
(7.1%)
National School Lunch Program (FRPL) Eligibility
Total Eligible: 102 of 1,439 (7.1%)
Free Lunch: 66 (4.6%)
Reduced-Price: 36 (2.5%)
Paid / Not Eligible: 1,337 (92.9%)
Multi-Year Enrollment Trends & Growth (2020-2021 – 2024-2025)
Student Diversity Distribution
Demographic composition of enrolled students across racial & ethnic backgrounds.
1,425
Students
| White | 743 | 52.1% | |
| Asian | 362 | 25.4% | |
| Two or More Races (Multiracial) | 192 | 13.5% | |
| Hispanic / Latino | 102 | 7.2% | |
| Black or African American | 20 | 1.4% | |
| Native Hawaiian / Pacific Islander | 5 | 0.4% | |
| American Indian / Alaska Native | 1 | 0.1% |
Grade-Level Enrollment Distribution
Distribution of student body across reported grade cohorts.
1,439
Students
| Grade 10 | 350 | 24.3% | |
| Grade 11 | 361 | 25.1% | |
| Grade 12 | 376 | 26.1% | |
| Grade 9 | 352 | 24.5% |
Student Gender Distribution
Reported enrollment counts by gender cohort.
M
54.2%
Male Students
773
F
45.8%
Female Students
652