Westerdijk is een straat te Hoorn in de gemeente Hoorn en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1621 LC | 1A, 1C, 1D, 1E, 1G, 1H, 1J, 1L, 1M, 1N, 1P, 1Q, 1R, 1R, 1S, 1T, 1V, 5A, 5B, 5C, 5D, 5E, 5, 7, 9, 13A, 13, 15A, 15B, 15, 17A, 17B, 17, 19, 21, 23, 25A, 25, 27, 29, 31A, 31, 33, 35, 37, 39; |
| 1621 LD | 41, 43, 45, 47A, 47, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77; |
| 1621 LE | 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 32, 34, 36, 40, 42, 44, 46A, 46, 48, 50, 52; |
| 1621 LN | 151, 153, 155, 157, 159, 161, 163, 165, 167, 169, 171, 173, 175, 177, 179, 181, 183, 185, 187, 189, 191, 195, 197, 199, 201, 203, 205, 207, 209, 211, 213; |