De Onderijen is een straat te Oosterhout in de gemeente Overbetuwe en is gelegen in de Nederlandse provincie Gelderland.
| Postcode | Huisnummers |
|---|---|
| 6678 BR | 1, 3, 5, 5, 7, 9, 11, 13, 15, 15, 17, 19, 21, 23, 25a, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49; |
| 6678 BS | 6, 8, 10, 12, 14, 16a, 16, 18, 20, 22, 24; |