Martensweg is een straat te Holtum in de gemeente Sittard-Geleen en is gelegen in de Nederlandse provincie Limburg.
| Postcode | Huisnummers |
|---|---|
| 6123 AX | 3, 5, 7, 9, 11, 13, 15, 17, 21, 23, 25, 27, 35, 33, 31, 29; |
| 6123 AW | 2, 4A, 4, 6A, 6B, 6, 8, 10, 12A, 12, 14A, 14, 16, 18, 20, 22, 24, 26, 28, 30; |