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. | South Browning Census Designated Place | Glacier | 19 |
| 2. | Browning Census Designated Place | Glacier | 21 |
| 3. | Boneau Census Designated Place | Chouteau | 24 |
| 4. | Havre North Census Designated Place | Hill | 25 |
| 5. | Rocky Boy West Census Designated Place | Chouteau | 26 |
| 6. | Town of Saint Ignatius | Lake | 28 |
| 7. | Lame Deer Census Designated Place | Rosebud | 29 |
| 8. | North Browning Census Designated Place | Glacier | 30 |
| 9. | City of Poplar | Roosevelt | 30 |
| 10. | Azure Census Designated Place | Hill | 31 |
| 11. | City of Wolf Point | Roosevelt | 31 |
| 12. | Town of Philipsburg | Granite | 32 |
| 13. | City of Ronan | Lake | 32 |
| 14. | Rocky Boy's Agency Census Designated Place | Hill | 33 |
| 15. | Saint Pierre Census Designated Place | Hill | 33 |
| 16. | Sangrey Census Designated Place | Hill | 33 |
| 17. | Parker School Census Designated Place | Chouteau | 33 |
| 18. | Fort Belknap Agency Census Designated Place | Blaine | 34 |
| 19. | Town of Ekalaka | Carter | 35 |
| 20. | Ashland Census Designated Place | Rosebud | 35 |