What types of schools are available in Mercer Island, Washington?

Mercer Island, Washington offers a variety of public schools including regular public schools and charter schools across elementary, middle, and high school levels.

Washington›King County›Mercer Island

Best Schools in Mercer Island, Washington

Q: How many schools are in Mercer Island, Washington?

There are 6 schools in Mercer Island, Washington, serving 3,993 students across elementary, middle, and high school levels.

Q: What is the best elementary school in Mercer Island?

To find the highest-rated elementary schools in Mercer Island, Washington, use our school listings above sorted by rating. Filter by "Elementary" level to compare test scores, student-teacher ratios, and parent reviews for each school.

Compare 6 elementary, middle, and high schools. View ratings, test scores, reviews, and more.

Total Schools

Public & Charter Schools

3,993

Total Students

Across Mercer Island

16.8:1

Avg Student-Teacher Ratio

District average

6 schools found

Advanced Insights & Statistics

Dynamic metrics computed specifically for currently filtered schools

Academic Proficiency Averages

Math Assessment Score0%

ELA Assessment Score86%

🎯 Proficiency averages represent the percentage of students meeting or exceeding state proficiency standard benchmarks.

Classroom Attention Ratio

Favorable Class Size (<15:1)1 Schools

Moderate Class Size (15-20:1)4 Schools

Larger Class Size (>20:1)1 Schools

💡 Lower classroom ratios are associated with greater individual student support, tutoring efficiency, and learning success.

Filtered Quality Highlights

✓0% of schools in this view have an Overall Rating of 8.0/10 or above.
✓Largest student enrollment is 1,439 students at Mercer Island High School.
✓Best student-teacher ratio is 14:1, offering optimal classroom attention.

🏆 Quality highlights let you quickly understand extremes within your current search criteria.

Island Park Elementary

publicelementaryK-5

5437 Island Crest Way, Mercer Island, WA 98040

Mercer Island High School

publichighGrade 9-12

9100 Se 42Nd, Mercer Island, WA 98040

Lakeridge Elementary School

publicelementaryK-5

8215 Se 78Th, Mercer Island, WA 98040

West Mercer Elementary

publicelementaryK-5

4141 81St Ave Se, Mercer Island, WA 98040

Northwood Elementary School

publicelementaryPK-5

4030 86Th Ave Se, Mercer Island, WA 98040

Islander Middle School

publicmiddleGrade 6-8

8225 Se 72Nd, Mercer Island, WA 98040

Detailed Overview of Schools in Mercer Island

Mercer Island, Washington is home to 6 schools serving over 3,993 students across elementary, middle, and high school levels. The district offers a mix of public, charter, and private institutions with strong academic programs and diverse extracurricular activities.

Data sourced from NCES, CCD, and state education agencies. See methodology →

Schoolary Research Team

Verified with NCES & state education agency data

Frequently Asked Questions

How many schools are in Mercer Island, Washington?

There are 6 schools in Mercer Island, serving 3,993 students across elementary, middle, and high school levels.

What is the best elementary school in Mercer Island?

Based on our ratings, the top-rated elementary schools in Mercer Island include schools with ratings of 9.0 or higher. Use our filters to view all elementary schools sorted by rating.

What is the average student-teacher ratio in Mercer Island?

The average student-teacher ratio across all schools in Mercer Island is 16.8:1.

Browse Schools by Level in Mercer Island

All Schools in Mercer Island Elementary Schools in Mercer Island Middle Schools in Mercer Island High Schools in Mercer Island All Schools in Washington Search All Schools