Prins Willem-Alexanderplantsoen is een straat te Maartensdijk in de gemeente De Bilt en is gelegen in de Nederlandse provincie Utrecht.
| Postcode | Huisnummers |
|---|---|
| 3738 DH | 1, 3, 5, 7, 9, 11, 13, 15, 17, 19; |
| 3738 DK | 2, 4, 6, 8, 10, 12, 14, 16; |
| 3738 DJ | 21, 23 GB1, 23 GB10, 23 GB11, 23 GB2, 23 GB3, 23 GB4, 23 GB5, 23 GB6, 23 GB7, 23 GB8, 23 GB9, 23, 25, 27, 29, 31, 33, 35 GB1, 35 GB10, 35 GB11, 35 GB12, 35 GB13, 35 GB2, 35 GB3, 35 GB4, 35 GB5, 35 GB6, 35 GB7, 35 GB8, 35 GB9, 35, 37, 39, 41, 43, 45, 47; |