Mercer Island High School

Mercer Island High School

Public High School | Grade 9-12
9100 SE 42nd St,  Mercer Island, WA
Mercer Island School District
3.8
3.5
1,465 Students
A+
Niche Grade

School Details

Head of School
Walter Kelly
Student Teacher Ratio
20:1
Average SAT Score
1390
Average ACT Score
31
Math Proficiency
82%
Reading Proficiency
94%
Average GPA
3.64
Graduation Rate
94%

Niche Grade

A+
Academics
A
Teachers
A+
College Prep
C+
Administration
B-
Resources/Facilities
B
Clubs and Activities
A
Sports
B+
Food
Source: Niche
Niche Grades

Niche grades and rankings are calculated using dozens of public data sets and millions of reviews. Niche data scientists and user researchers rigorously analyze data and user opinions to assess the key aspects of K-12 Schools, Colleges, and Places to Live. Every month, millions of students and families use the Niche grades and report cards to find the right school or neighborhood.

Niche Grade Details

Academics
Average GPA
3.64
Reading Proficiency
94%
Math Proficiency
82%
Teachers
Student Teacher Ratio
20:1
Teachers
75
Full Time Teachers
75
Teachers in First or Second Year
11.9%
College Prep
Average SAT
1390
Math
700
Verbal
690
Average ACT
31
Math
30
English
32
Reading
31
Science
30
Number of AP Courses
20
AP Pass Rate
88.4%
AP Math Enrollment
High
AP Science Enrollment
Very High
Other AP Enrollment
Very High
Four-Year Matriculation Rate
90%
Clubs and Activities
Girls Athletic Participation
High
Boys Athletic Participation
High

GreatSchools Rating

Source: GreatSchools
GreatSchools Rating
The GreatSchools Rating helps parents compare schools within a state based on a variety of school quality indicators and provides a helpful picture of how effectively each school serves all of its students. Ratings are on a scale of 1 (below average) to 10 (above average) and can include test scores, college readiness, academic progress, advanced courses, equity, discipline and attendance data. We also advise parents to visit schools, consider other information on school performance and programs, and consider family needs as part of the school selection process.
View GreatSchools Rating Methodology

GreatSchools Rating Details

Test Scores

Math
87%
State Average
41.7%
Science
88.6%
State Average
49.7%
GreatSchools Test Scores Rating
GreatSchools
The Test Score Rating reflects annual state test results for this school compared with scores statewide.

Teachers and Staff

Students Per Counselor
311:1

Student Diversity

Male
54.5%
Female
44.8%
White
56.7%
Asian or Pacific Islander
24.2%
Two or more races
10.6%
Hispanic
6.4%
Black
1.2%
Native Hawaiian or Other Pacific Islander
<1%

School Rankings

#5 Best College Prep Public HS in Washington
#7 Best Public HS in Washington
Source: Niche

Specialty School Programs

AP Programs Offered
IB Programs Offered
Free/Reduced Lunch Offered
Athletics Program

Colleges Students are Considering

Students are most interested in or go on to attend these colleges.
University of Washington 571 Students
Washington State University 198 Students
University of California - Los Angeles 179 Students
University of Southern California 169 Students
University of California - Santa Barbara 157 Students
New York University 152 Students
University of California - Berkeley 150 Students
University of Oregon 139 Students
University of Michigan - Ann Arbor 135 Students
University of Colorado Boulder 132 Students

What Students Want to Study

Niche users from this school are most interested in the following majors.
Business 269 Students
Psychology 159 Students
Biology 113 Students
Computer Science 106 Students
Economics 98 Students
Pre-Medicine Studies 84 Students
Political Science and Government 81 Students
Marketing 69 Students
Engineering 66 Students
Finance 49 Students

This School’s Reviews

Niche Reviews
3.8 214 Reviews
5.0 Parent
2/6/2025
MIHS is an amazing place for students. Teachers are dedicated and committed. The music program is amazing. Community support for the school district has historically been strong. There is a positive environment including a mental health staff that is supported by the City of Mercer Island.
5.0 Senior
11/1/2023
Mercer Island High School provides a great education, producing well-rounded young people who receive education and opportunities in sports, music, arts and other extra-curricular activities.
4.0 Alum
6/29/2023
Mercer Island spirit is insane, the students, staff, parents, everyone participates in our spirit days and football games even though our team isn't the best. The academics/teachers are really good and it's not that competitive nor are the students snobby and spoiled like the Mercer Island stereotype everyone else believes in. Overall I really enjoyed my experience at MIHS.
GreatSchools Reviews
3.5 22 Reviews
5.0 parent
2/14/2025
We have had a wonderful experience with Mercer Island High School. One of our daughters has already graduated, and our younger daughter is set to graduate this year. Both have been accepted into outstanding colleges, and we couldn’t be happier with the education and support they received at MIHS.Our...
1.0 other
10/27/2024
DO NOT CHOOSE THIS SCHOOL IF YOUR CHILD IS ON AN IAEP!!!!!!!!!!!!!!!!! I am saying this from my experience as a former student who actually pushed my family to move back to where we originally came from and after living there for exactly three years, we left because it was HORRIBLE. I know a lot of...
1.0 student
12/14/2023
The math and science department have long been problematic. Post pandemic, the district spent hundreds of thousands of dollars on a new math curriculum, without providing the appropriate professional development and training for teachers to properly implement the curriculum that is supposedly more i...
5.0 parent
8/29/2023
We moved here for the schools - which have been exceptional - and stayed for the community.Our children went thru Lakeridge, West Mercer E2 program, IMS, and MIHS.Continually challenged with AP courses, engaging instruction, and friendly helpful peers.Regarding other negative reviews: If your child...

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Mercer Island High School is a public school for students in grades 9-12 in Mercer Island, WA and is served by the Mercer Island School District in Washington. The school has a total enrollment of 1,465 and maintains a student-teacher ratio of 20:1. Academic records show that 82% of students achieve proficiency in math, and 94% are proficient in reading. Mercer Island High School has received feedback and ratings, with a Niche grade of A+ and a GreatSchools Rating of 10 out of 10. The average GPA is 3.64, the graduation rate is 94%, and average standardized test scores include an SAT score of 1390 and an ACT score of 31. The average home value in this area is $2,217,557. Discover additional schools in the area, like The Privett Academy, Yellow Wood Academy, Northwest Yeshiva High School, and more. Learn more about what Mercer Island has to offer, and browse homes for sale and for rent near Mercer Island High School.

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