Willem Klooslaan is een straat te Haarlem in de gemeente Haarlem en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 2024 JP | 12, 14, 16, 18, 20, 22, 23 I, 23 II, 23, 24, 25 I, 25 II, 25, 26, 27 I, 27 II, 27, 28, 29 I, 29 II, 29, 30, 31 I, 31 II, 31, 32, 33 I, 33 II, 33, 34, 35, 36, 37, 10, 38, 39, 40, 41, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94; |
| 2024 JN | 21, 21 II, 21 I, 19, 19 II, 19 I, 17, 17 II, 17 I, 15, 15 II, 15 I, 13, 13 II, 13 I, 11, 11 II, 11 I, 9, 7, 5, 3, 1; |