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. | 01901 | Lynn | 34 |
| 2. | 02564 | Siasconset | 35 |
| 3. | 02115 | Boston | 38 |
| 4. | 02121 | Dorchester | 38 |
| 5. | 02657 | Provincetown | 42 |
| 6. | 02535 | Chilmark | 44 |
| 7. | 02120 | Roxbury Crossing | 49 |
| 8. | 02119 | Roxbury | 50 |
| 9. | 02539 | Edgartown | 51 |
| 10. | 01262 | Stockbridge | 52 |
| 11. | 02568 | Vineyard Haven | 53 |
| 12. | 02108 | Boston | 55 |
| 13. | 02647 | Hyannis Port | 55 |
| 14. | 02650 | North Chatham | 56 |
| 15. | 02667 | Wellfleet | 56 |
| 16. | 02118 | Boston | 56 |
| 17. | 02641 | East Dennis | 57 |
| 18. | 02116 | Boston | 58 |
| 19. | 02215 | Boston | 58 |
| 20. | 02134 | Allston | 59 |
