Handvastwater is een straat te Enkhuizen in de gemeente Enkhuizen en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1601 PP | 1, 5, 7, 11a, 13, 15, 17, 19, 23, 25, 29, 35, 37, 39, 41, 43, 45, 47, 49, 51; |
| 1601 PR | 4, 8, 10, 12, 18, 20, 22, 22, 26, 30, 32, 36, 38, 40, 46, 48, 50, 52; |