Jan in 't Veltstraat is een straat te Den Helder in de gemeente Den Helder en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1781 SC | 3, 5, 7, 9, 11, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47; |
| 1781 SE | 49A, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79; |
| 1781 SG | 81, 85, 87, 89, 91, 93A, 93, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121; |
| 1781 SH | 127, 129, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 153, 155; |
| 1781 SJ | 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50; |
| 1781 SK | 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84; |
| 1781 SL | 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118; |
| 1781 SM | 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150; |