Oude Aa is een straat te Helmond in de gemeente Helmond en is gelegen in de Nederlandse provincie Noord-Brabant.
| Postcode | Huisnummers |
|---|---|
| 5701 PZ | 1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18A, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 43, 45, 47, 49, 53; |