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.
| Name | County | Wealth Index | |
|---|---|---|---|
| 1. | City of Homedale | Owyhee | 26 |
| 2. | Elk City Census Designated Place | Idaho | 28 |
| 3. | City of Clark Fork | Bonner | 30 |
| 4. | City of Marsing | Owyhee | 30 |
| 5. | Mountain Home Air Force Base Census Designated Place | Elmore | 30 |
| 6. | City of Smelterville | Shoshone | 32 |
| 7. | City of Kooskia | Idaho | 33 |
| 8. | City of Dubois | Clark | 34 |
| 9. | City of Priest River | Bonner | 34 |
| 10. | City of Wallace | Shoshone | 34 |
| 11. | City of Glenns Ferry | Elmore | 35 |
| 12. | City of Hazelton | Jerome | 36 |
| 13. | City of Emmett | Gem | 36 |
| 14. | City of Idaho City | Boise | 37 |
| 15. | City of Kamiah | Lewis | 37 |
| 16. | City of Wilder | Canyon | 37 |
| 17. | City of Rexburg | Madison | 37 |
| 18. | City of Weiser | Washington | 38 |
| 19. | City of Wardner | Shoshone | 39 |
| 20. | City of Kellogg | Shoshone | 39 |
