Willem-Alexanderpoort is een straat te Uithoorn in de gemeente Uithoorn en is gelegen in de Nederlandse provincie Noord-Holland.
| Postcode | Huisnummers |
|---|---|
| 1421 CH | 50, 52, 54, 56, 58, 60, 62, 66, 68, 70, 72, 74, 48, 46, 44, 42, 40, 38, 36, 34, 32, 30, 28, 26, 24, 22, 20, 18, 16, 14, 12, 10, 8, 6, 4, 2; |
| 1421 CG | 1, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51; |
| 1421 CJ | 76, 78, 80, 82, 84, 86, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108; |