WAHighProfile data from NCES 2023-24
Mercer Island High School — School Profile & District Info
High|Mercer Island, Washington|Mercer Island School District
Mercer Island, WA 98040
School Profile
Grades
9–12
Enrollment
1,465
Student:Teacher
19.8:1
Locale
Suburban
District
Mercer Island School DistrictEcon. Disadvantaged
7.2%
Phone
(206)236-3345School Statistics
Programs & Activities (SY 2021-22)
AP Program
29 courses offered
Gifted & Talented
Dual Enrollment
Athletics
5 sports offered
Student-Teacher Ratio: 19.1:1
Worse than average in WADistrict Finance (FY 2023)
Per-Pupil Spending
$17,288
District-level data
Funding Sources
Federal 3%State 58%Local 40%
Community Context
Median Home Value
$740,211
-1.6% YoY
Seattle, WA metro area · Zillow Feb 2026
Community Need Level
Moderate
CDC/ATSDR Social Vulnerability Index 2022
Enrollment Trend (2014-2025)
1,439
Current enrollment
Stable(-7% 5yr)Frequently Asked Questions about Mercer Island High School
Enrollment at Mercer Island High School stands at 1,465 students. The school is a High institution in the local district.
Calendar Guides
School profiles: Data from NCES Common Core of Data. Calendar events from district calendar sources, updated automatically.