Oostersingel is een straat te Schagen in de gemeente Schagen en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1741 MP | 1, 13, 15, 17, 19, 21, 23, 25, 27, 29; |
| 1741 MR | 48, 46, 44, 42, 40, 38, 36, 34, 32, 30, 28, 26, 24, 22, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2; |