Westerstraat is een straat te Sijbekarspel in de gemeente Medemblik en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1655 LH | 144, 146, 148a, 148, 150, 152, 142, 142D, 142C, 142B, 142A, 140, 138, 136, 134, 132, 130, 128, 126, 124, 124b, 124a, 95, 93, 91, 89, 87, 85, 83, 81; |
| 1655 LE | 63, 65A, 65, 67A, 67, 69, 71, 86, 88a, 88b, 88c, 88d, 88e, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106; |
| 1655 LD | 57a, 57, 59, 61, 64, 68, 70, 72, 74, 76, 78, 80, 82, 84, 49, 51, 53, 55; |
| 1655 LG | 73, 75, 77, 79A, 79, 108, 110, 112, 114, 116, 118, 120a, 120, 122; |
| 1655 LA | 13, 14, 16, 18, 20, 22, 24, 1a, 1, 2A, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12; |
| 1655 LC | 33, 35, 37, 39a, 39, 41, 43, 45, 45, 47, 50, 52, 54, 56, 58a, 58, 60, 62; |
| 1655 LB | 15A, 15B, 15, 15, 17, 19, 21, 25, 26, 27, 28a, 28, 29, 30, 31a, 31b, 32A, 32, 36, 38, 40, 42, 44, 46, 48; |