Oude Postbaan is een straat te Liempde in de gemeente Boxtel en is gelegen in de Nederlandse provincie Noord-Brabant.
| Postcode | Huisnummers |
|---|---|
| 5298 AT | 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 26, 28, 30, 32, 34, 36, 38; |
| 5298 AS | 1, 3, 5t, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 35, 39, 41; |