Sorted by population.
| County | Population | Median HHI |
|---|---|---|
| King County WA |
2,305,423 | $128,236 |
| Pierce County WA |
873,248 | $97,609 |
| Snohomish County WA |
802,685 | $112,319 |
| Spokane County WA |
536,558 | $76,854 |
| Clark County WA |
526,280 | $97,614 |
| Kitsap County WA |
300,005 | $101,285 |
| Benton County WA |
248,407 | $84,317 |
| Thurston County WA |
245,758 | $94,915 |
| Whatcom County WA |
192,222 | $79,147 |
| Yakima County WA |
186,356 | $71,019 |
| Skagit County WA |
172,116 | $86,856 |
| Cowlitz County WA |
99,011 | $72,363 |
In alphabetical order; geographic adjacency layer planned for v1.1.
Every value drawn from the same federal-source warehouse that powers individual place profiles. See data sources for the full dictionary, methodology for metric definitions.