The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
| ZIP Code | City | Housing Affordability Index | |
|---|---|---|---|
| 1. | 57759 | Nemo | 29 |
| 2. | 57732 | Deadwood | 48 |
| 3. | 57762 | Nisland | 50 |
| 4. | 57714 | Allen | 54 |
| 5. | 57745 | Hill City | 55 |
| 6. | 57075 | Wentworth | 57 |
| 7. | 57722 | Buffalo Gap | 58 |
| 8. | 57744 | Hermosa | 59 |
| 9. | 57788 | Vale | 59 |
| 10. | 57577 | Wanblee | 64 |
| 11. | 57520 | Agar | 66 |
| 12. | 57050 | Nunda | 67 |
| 13. | 57057 | Rutland | 67 |
| 14. | 57239 | Grenville | 68 |
| 15. | 57785 | Sturgis | 68 |
| 16. | 57738 | Fairburn | 70 |
| 17. | 57069 | Vermillion | 72 |
| 18. | 57227 | Corona | 73 |
| 19. | 57783 | Spearfish | 74 |
| 20. | 57243 | Henry | 76 |