Klaas Casterkomstraat is een straat te Den Helder in de gemeente Den Helder en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1785 ND | 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60A, 60, 62, 64; |
| 1785 NC | 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 86, 88, 90, 92, 94, 96, 98, 100; |