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.
| County | Housing Affordability Index | |
|---|---|---|
| 1. | Custer County | 116 |
| 2. | Clay County | 122 |
| 3. | Lawrence County | 136 |
| 4. | Meade County | 138 |
| 5. | Butte County | 138 |
| 6. | Pennington County | 140 |
| 7. | Minnehaha County | 154 |
| 8. | Codington County | 159 |
| 9. | Fall River County | 163 |
| 10. | Davison County | 165 |
| 11. | Hughes County | 168 |
| 12. | Brookings County | 169 |
| 13. | Lincoln County | 170 |
| 14. | Union County | 171 |
| 15. | Lake County | 172 |
| 16. | Stanley County | 180 |
| 17. | Brown County | 181 |
| 18. | Moody County | 182 |
| 19. | McCook County | 184 |
| 20. | Brule County | 184 |
