Washington Gazetteer
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
| County | Wealth Index | |
|---|---|---|
| 1. | San Juan County | 163 |
| 2. | King County | 159 |
| 3. | Columbia County | 136 |
| 4. | Snohomish County | 135 |
| 5. | Kitsap County | 130 |
| 6. | Benton County | 118 |
| 7. | Clark County | 118 |
| 8. | Jefferson County | 116 |
| 9. | Island County | 114 |
| 10. | Thurston County | 113 |
| 11. | Pierce County | 111 |
| 12. | Skagit County | 101 |
| 13. | Wahkiakum County | 100 |
| 14. | Walla Walla County | 97 |
| 15. | Whatcom County | 96 |
| 16. | Lincoln County | 96 |
| 17. | Mason County | 91 |
| 18. | Spokane County | 90 |
| 19. | Chelan County | 89 |
| 20. | Cowlitz County | 87 |
