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The median home value in Mercer Island, WA is $2,295,406 as of 2026-07-31, down 1.55% from a year earlier.
Median Home Value
$2,295,406
Year-over-Year
-1.55%
Population
24,416
Mercer Island ranks #1 of 118 Washington cities tracked here by median home value, and sits 288.3% above the state's city median of $591,094. It sits in King County, where the county-wide median is $853,410.
Median household income in Mercer Island is $219,069, so the typical home value is about 10.5× annual household income. This is a simple price-to-income benchmark rather than a monthly payment estimate; it does not account for mortgage rates, down payments, taxes or insurance.
Household income comes from the U.S. Census Bureau's ACS 5-Year Estimates, table B19013 (how the affordability measure works).
Mercer Island police recorded a violent crime rate of 37 per 100,000 residents in 2024 — lower than most cities that report to the FBI. Property crime runs at 1,241 per 100,000.
Reported by the city's own police department to the FBI's Uniform Crime Reporting Program (what this covers).
People often call this an average home price, but the figure shown here is Zillow's typical home value (ZHVI), not a simple arithmetic average. In Mercer Island, that value is $2,295,406. That's down 1.55% from a year earlier. It is about 288.3% above the typical Washington city tracked here.
Homes in Mercer Island are more expensive than King County as a whole, where the median is $853,410 — a difference of about 169.0%.
Median household income here is $219,069, so the typical home value is about 10.5× annual household income. This ratio is a broad comparison measure, not a mortgage-payment estimate.
Mercer Island police reported 37 violent crimes per 100,000 residents, covering a population of about 24,416. Crime rates are one input among many — they vary block to block within a city, and this figure is a citywide average.