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. | Allegany County | 52 |
| 2. | Somerset County | 56 |
| 3. | Baltimore city | 60 |
| 4. | Dorchester County | 69 |
| 5. | Caroline County | 76 |
| 6. | Wicomico County | 78 |
| 7. | Washington County | 83 |
| 8. | Garrett County | 84 |
| 9. | Kent County | 106 |
| 10. | Worcester County | 106 |
| 11. | Baltimore County | 111 |
| 12. | Cecil County | 112 |
| 13. | Prince George's County | 115 |
| 14. | Charles County | 118 |
| 15. | St. Mary's County | 124 |
| 16. | Harford County | 128 |
| 17. | Talbot County | 129 |
| 18. | Frederick County | 146 |
| 19. | Queen Anne's County | 149 |
| 20. | Carroll County | 151 |