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. | Blaine County | 132 |
| 2. | Ada County | 117 |
| 3. | Camas County | 111 |
| 4. | Teton County | 108 |
| 5. | Valley County | 106 |
| 6. | Adams County | 105 |
| 7. | Kootenai County | 99 |
| 8. | Bonner County | 98 |
| 9. | Bonneville County | 86 |
| 10. | Boise County | 86 |
| 11. | Gem County | 85 |
| 12. | Canyon County | 80 |
| 13. | Bear Lake County | 78 |
| 14. | Jefferson County | 78 |
| 15. | Bingham County | 76 |
| 16. | Payette County | 76 |
| 17. | Gooding County | 75 |
| 18. | Latah County | 75 |
| 19. | Nez Perce County | 75 |
| 20. | Bannock County | 75 |