Mercer Island, Washington Income Statistics
Mercer Island Wealth Score
The wealth index reflects the overall economic prosperity and financial well-being of an area's residents based on income levels, employment rates, and income inequality metrics.
-
A+
Mercer Island Top grade
Source: Map AI Methodology
Income Statistics Overview
| Metric | Mercer Island | Washington Avg | US Average |
|---|---|---|---|
| Median Household Income | $203,262 | $98,224 | $80,455 |
| Median Personal Income | $129,010 | $73,370 | $60,758 |
| Average Yearly Income Growth | 6.2% | 5.6% | 4.8% |
| Six-Figure Earners | 41.3% | 19.3% | 13.9% |
| $200k+ Households | 53.5% | 18.5% | 13.2% |
The median household income in Mercer Island is about 107% higher than in Washington. Income has been growing faster in Mercer Island (6.2%/yr) than in Washington (5.6%/yr).
About 41% of adults in Mercer Island earn six figures ($100,000 or more) a year, higher than the Washington average of 19%.
Median Household Income 2009–2024 Trend
Median Household Income Over Time
Median household income in Mercer Island, Washington grew by 81.1% from 2009 to 2024, reaching $203,262 in 2024. That's an average of about 6.2% per year.
Income Inequality and the Gender Pay Gap in Mercer Island
| Metric | Mercer Island | Washington Avg | US Average |
|---|---|---|---|
| Gini Coefficient | 0.499 | 0.534 | 0.552 |
| Male Median Income | $138,175 | $86,137 | $69,667 |
| Female Median Income | $119,757 | $68,506 | $56,850 |
| Gender Pay Gap | 13.3% | 20.5% | 18.4% |
The Gini coefficient measures how evenly income is shared between richer and poorer households, from 0 (everyone earns the same) to 1 (one household earns nearly everything). The lower the number, the more equally income is distributed. In Mercer Island, it is 0.499, lower than Washington's 0.534, so income is more evenly distributed here than there, and lower than the US's 0.552, so income is more evenly distributed here than there.
Men's income is about 15% more than women's income in Mercer Island, Washington. Over a 35-year career, a 15% wage gap accumulates to roughly $644,630 in unearned income for female workers in the area.
Income by Sex Over Time
Since 2009, the income gap between men and women in Mercer Island, Washington has narrowed from about 32% to 13% in 2024. Over that period the gap was widest at 34% in 2010, and was narrowest at 13% in 2022. In dollar terms, the gap has narrowed by $17,977 since 2009.
Employment
| Metric | Mercer Island | Washington Avg | US Average |
|---|---|---|---|
| Unemployment Rate | 3.0% | 5.0% | 5.2% |
| Working from Home | 38.7% | 19.8% | 15.0% |
| Commute time (minutes) | 22 | 22 | 22 |
Approximately 382 people are unemployed in Mercer Island, Washington.
The average commute time in Mercer Island is 22 minutes, about the same as in Washington.
Unemployment Rate Over Time
Since 2011, the unemployment rate in Mercer Island, Washington has fallen from 4.5% to 3.0% in 2024. Over that period the rate peaked at 6.0% in 2013 and fell as low as 2.2% in 2020.
Conclusion
Considering all these factors, Mercer Island, Washington has an overall wealth index grade of A+, making it far better than Washington, and far better than the country as a whole.
Frequently Asked Questions
Common questions about income and wealth in Mercer Island, Washington.
How Rich Is Mercer Island, Washington?
Mercer Island has a wealth index grade of A+. The wealth index grades areas from A+ (best) to F- by combining income levels, employment rates, and income inequality; an A+ grade means it is one of the most prosperous areas in the country. The median household income is $203,262, about 107% higher than the Washington average of $98,224.
Are incomes growing in Mercer Island, Washington?
Between 2009 and 2024, the median household income in Mercer Island, Washington rose 81%, from $112,255 to $203,262. Over the same years, income here outpaced Washington as a whole: +81% against +73%.
What was the median household income in Mercer Island in 2023?
In 2023, the median household income in Mercer Island, Washington was $200,455, up 6% from $189,005 in 2022. The Washington median that year was $95,216.
What was the median household income in Mercer Island in 2020?
In 2020, the median household income in Mercer Island, Washington was $150,251. By 2024 it had risen 35% to $203,262.
Is Mercer Island, Washington a high-income area?
Yes. 41% of adults in Mercer Island, Washington earn $100,000 or more a year (about 1 in 2), against 19% (about 1 in 5) in Washington. 53% of households have a combined income of $200,000 or more, compared with 18% in Washington.
How strong is the job market in Mercer Island, Washington?
Unemployment in Mercer Island, Washington is only 3.0%, well below the Washington rate of 5.0%, a sign of a tight labor market where employers compete for workers.
What is the Gini coefficient in Mercer Island, Washington?
The Gini coefficient in Mercer Island is 0.499. It measures income inequality on a scale from 0 (everyone earns the same) to 1 (one household earns everything). That is lower than the US average of 0.552, so income is distributed more equally than in the country overall.
How has the income gap between men and women changed in Mercer Island, Washington?
Since 2009, the income gap between men and women in Mercer Island, Washington has narrowed from about 32% to 13% in 2024. Over that period the gap was widest at 34% in 2010, and was narrowest at 13% in 2022. In dollar terms, the gap has narrowed by $17,977 since 2009.
Analyze any area in the US
Get local demographics for any address, aggregated by drive time or radius, on the interactive map.
Explore the map →