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Mercer Island city, WA
ZIP 98040 — Economy & Jobs
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
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Income, employment, industries, and economic trends
Income & Economy in Mercer Island city, WA (98040)
Median Income
$202,359
*Adjusted for inflation (2023 dollars)
IRS Net Migration
+1,358
Wealth inflow
Population
25,282
Unemployment
2.5%
1.3pp below US avg
IRS migration statistics show a net inflow of about 1,358 for ZIP 98040 (Mercer Island city, WA) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.
Historical Trends in 98040 (2020–Present)
Since 2020, population declined 2.1%, median income rose 14.2% (inflation-adjusted), home values increased 15.4%.
Economy & Jobs key statistics
| Income & Jobs | |
|---|---|
| Median household income | $202,359 |
| Unemployment | 2.5% |
| Establishments | 830 |
| Employees | 7,524 |