Justus van Effenstraat is een straat te Alkmaar in de gemeente Alkmaar en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1813 KW | 2, 3A, 3B, 3C, 3D, 5A, 5B, 5C, 6, 7A, 7B, 7C, 8, 9A, 9B, 9C, 9D, 10, 11A, 11B, 11C, 12, 13A, 13B, 13C, 13D, 14, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 67, 68, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93; |