Poststraat is een straat te Obdam in de gemeente Koggenland en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1713 JB | 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39; |
| 1713 JC | 2a, 4a, 4, 6a, 6, 8a, 8, 10a, 10, 12a, 12, 14a, 14, 16a, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36; |
| 1713 JD | 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68; |