Westerhaven is een straat te Medemblik in de gemeente Medemblik en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1671 CH | 3, 4, 5, 6, 7, 8A, 8, 9, 10, 11, 12, 13, 14, 15A, 15B, 15, 16, 17, 18, 19, 20, 2, 2B, 2A, 1, 1; |
| 1671 CJ | 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 25A, 24, 23, 22, 21; |