Neptunusstraat is een straat te Haarlem in de gemeente Haarlem en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 2024 GM | 1, 3, 5, 7, 11, 13, 15, 17, 19, 21, 23, 25A, 25 RD, 25 ZW; |
| 2024 GN | 27 RD, 27 ZW, 29, 31, 33, 35, 37A, 37 RD, 37 ZW, 39 RD, 39 ZW, 41, 43, 45, 47, 49, 51, 53, 59; |
| 2024 GP | 2, 4, 6, 8, 10, 12, 14, 16 RD, 16 ZW, 18 RD, 18 ZW, 20, 22, 24, 26, 28; |
| 2024 GR | 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54; |