Mercer Island, WA
Population 25,282 · Washington
About Mercer Island, WA
Mercer Island is a mid-sized city in Washington with a population of 25,282 residents. The median household income is $202,359 per year, which is above the national average. The median age in Mercer Island is 45.8 years.
Housing in Mercer Island has a median home value of $1,884,200 and median monthly rent of $2,464. Of the 10,454 total housing units, the majority are owner-occupied, with 6,529 owner-occupied and 3,364 renter-occupied units.
The unemployment rate in Mercer Island is 2.5% and the poverty rate is 4.6%. 78.8% of residents hold a bachelor's degree or higher. The average commute time is 24.9 minutes.
How Mercer Island Ranks in Washington
Cost of Living in Mercer Island, WA
Compared to national averages, Mercer Island has a median household income of $202,359 (169% above the national median of $75,149). Home values average $1,884,200, which is 669% above the national median. Monthly rent at $2,464 is 112% above the US average of $1,163. Within Washington, Mercer Island's income is 123% above the state average of $90,795, and home values are 309% above the state median of $460,491.
Why Live in Mercer Island, WA?
Mercer Island offers a strong local economy with a median household income of $202,359, well above the national average, and a strong job market with an unemployment rate of just 2.5%, and a well-educated community where 78.8% of residents hold a bachelor’s degree or higher. Additionally, the city features a low poverty rate of 4.6%, better than the national average, and short commute times averaging just 24.9 minutes.
Potential considerations include a competitive housing market where the typical home costs $1,884,200. However, Mercer Island’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Mercer Island has a population of 25,282 with a median age of 45.8 years. Compare Mercer Island with other cities to see how it stacks up, or explore all cities in Washington.
Similar Cities Near Mercer Island
Cities in Washington with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Mill Creek East | 25,461 | $183,466 | $840,100 | Compare |
| Moses Lake | 25,594 | $71,854 | $278,100 | Compare |
| Bainbridge Island | 24,607 | $159,882 | $1,076,200 | Compare |
| Oak Harbor | 24,396 | $72,041 | $421,700 | Compare |
| Frederickson | 24,219 | $107,241 | $455,900 | Compare |
| Tumwater | 26,519 | $93,635 | $438,000 | Compare |
| Camas | 26,779 | $140,053 | $656,100 | Compare |
| North Lynnwood | 23,653 | $102,888 | $565,000 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Washington
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about Mercer Island
What is the population of Mercer Island, WA?
The population of Mercer Island, WA is 25,282 according to the latest Census data.
What is the median household income in Mercer Island?
The median household income in Mercer Island, WA is $202,359 per year.
What is the median home value in Mercer Island?
The median home value in Mercer Island, WA is $1,884,200.
What is the average rent in Mercer Island?
The median monthly rent in Mercer Island, WA is $2,464.
What is the unemployment rate in Mercer Island?
The unemployment rate in Mercer Island, WA is 2.5%.