Westerweg is een straat te Akersloot in de gemeente Castricum en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1921 AC | 35, 37a, 37, 35a, 33, 33a, 31, 31d, 31c, 31b, 31a, 29, 27, 25, 23, 21, 19, 17, 15, 13, 11, 9, 7, 5, 3, 1, 1a; |
| 1921 AD | 2, 4, 6, 8, 10, 12, 14, 16, 18, 18, 20, 22, 24, 32, 34, 36a, 36; |