Blok is een straat te Krommenie in de gemeente Zaanstad en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1561 TB | 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 57, 55, 53, 51, 49; |
| 1561 TC | 38, 36, 34, 32, 30, 28, 26, 24, 22, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2; |
| 1561 TA | 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 1a, 1b, 1c, 1, 3A, 3B, 3, 5, 7, 15, 19, 21, 23, 25; |