Oosterzijweg is een straat te Heiloo in de gemeente Heiloo en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1851 PB | 22, 23a, 23, 24, 25a, 25, 26, 27, 29a, 29b, 29c, 29d, 29, 30, 32, 34, 9001, 9002, 21, 20, 19, 19a, 18, 17, 16, 14, 12; |
| 1851 PA | 15, 13, 11, 11a, 10, 9, 9a, 8, 7, 6, 6a, 5, 4, 2; |
| 1851 NV | 9892; |
| 1851 PC | 31a, 58, 60, 62, 64, 66, 67, 68, 69, 71, 73, 75, 75, 31, 33, 35, 36, 37 BEDR, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 56; |
| 1851 PS | 88, 90, 94, 96, 98, 108, 110, 120a, 120, 122, 124, 126, 128a, 128, 130; |