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. | Dickinson County | 113 |
| 2. | Dallas County | 110 |
| 3. | Grundy County | 106 |
| 4. | Johnson County | 104 |
| 5. | Ringgold County | 103 |
| 6. | Polk County | 100 |
| 7. | Cherokee County | 99 |
| 8. | Cedar County | 98 |
| 9. | Linn County | 98 |
| 10. | Scott County | 98 |
| 11. | Bremer County | 97 |
| 12. | Sioux County | 95 |
| 13. | Buchanan County | 93 |
| 14. | Calhoun County | 89 |
| 15. | Warren County | 89 |
| 16. | Dubuque County | 88 |
| 17. | Ida County | 88 |
| 18. | Iowa County | 88 |
| 19. | Woodbury County | 87 |
| 20. | Sac County | 85 |
