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. | Town of Henlopen Acres | Sussex | 464 |
| 2. | North Star Census Designated Place | New Castle | 323 |
| 3. | Hockessin Census Designated Place | New Castle | 269 |
| 4. | Greenville Census Designated Place | New Castle | 268 |
| 5. | Town of Bethany Beach | Sussex | 267 |
| 6. | City of Rehoboth Beach | Sussex | 264 |
| 7. | Town of South Bethany | Sussex | 250 |
| 8. | Village of Ardencroft | New Castle | 245 |
| 9. | Town of Fenwick Island | Sussex | 224 |
| 10. | Town of Dewey Beach | Sussex | 210 |
| 11. | Pike Creek Census Designated Place | New Castle | 183 |
| 12. | City of Lewes | Sussex | 183 |
| 13. | Town of Odessa | New Castle | 162 |
| 14. | Village of Arden | New Castle | 154 |
| 15. | Town of Ocean View | Sussex | 148 |
| 16. | Town of Slaughter Beach | Sussex | 143 |
| 17. | Saint Georges Census Designated Place | New Castle | 138 |
| 18. | Village of Ardentown | New Castle | 132 |
| 19. | Town of Millville | Sussex | 130 |
| 20. | Riverview Census Designated Place | Kent | 129 |
