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