Onderdoor is een straat te Houten in de gemeente Houten en is gelegen in de Nederlandse provincie Utrecht.
| Postcode | Huisnummers |
|---|---|
| 3995 DW | 5 306, 5 307, 5 308, 5 309, 5 310, 5, 11a, 11, 13, 15, 17, 19, 25, 5 305, 5 304, 5 303, 5 302, 5 301, 5 215, 5 214, 5 213, 5 212, 5 211, 5 210, 5 209, 5 208, 5 207, 5 206, 5 205, 5 204, 5 203, 5 202, 5 201, 3, 1, 1b, 1a; |
| 3995 DX | 2, 22 1, 22 2, 24 1, 24 2, 26 1, 28 1, 30, 32, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 80, 82, 158, 160, 162, 164, 166, 168, 170, 172, 174, 4a, 4, 6 1, 182, 184, 186, 188, 190, 6 2, 6 3, 8 1, 8 2, 8 3, 10 1, 10 2, 10 3, 10 4, 10 5, 12 1, 12 2, 12 3, 14 1, 14 2, 16 1, 16 2, 18 1, 18 2, 20 1, 20 2, 176, 178, 180; |