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. | 99371 | Washtucna | 193 |
| 2. | 99143 | Lacrosse | 184 |
| 3. | 99322 | Bickleton | 183 |
| 4. | 98357 | Neah Bay | 175 |
| 5. | 98526 | Amanda Park | 172 |
| 6. | 98587 | Taholah | 163 |
| 7. | 99356 | Roosevelt | 149 |
| 8. | 99040 | Wellpinit | 149 |
| 9. | 99149 | Malden | 139 |
| 10. | 99170 | Rosalia | 134 |
| 11. | 99343 | Mesa | 132 |
| 12. | 98952 | White Swan | 124 |
| 13. | 99341 | Lind | 123 |
| 14. | 98813 | Bridgeport | 122 |
| 15. | 98673 | Wishram | 121 |
| 16. | 99124 | Elmer City | 121 |
| 17. | 99348 | Prescott | 117 |
| 18. | 99169 | Ritzville | 116 |
| 19. | 99116 | Coulee Dam | 114 |
| 20. | 99017 | Lamont | 114 |