Nieuwendam is een straat te Hoorn in de gemeente Hoorn en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1621 AP | 16, 17, 18, 15, 14, 13, 12, 11, 10, 10C, 10B, 10A, 9, 8, 7, 6, 4, 3, 3, 2, 2H, 2G, 2F, 2E, 2A, 1, 1; |
| 1621 AR | 21, 22, 23, 24A, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 36A, 36B, 36, 37; |