Oude Middelhorst is een straat te Haren (Gn) in de gemeente Haren en is gelegen in de Nederlandse provincie Groningen.
| Postcode | Huisnummers |
|---|---|
| 9751 TK | 1, 2a, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 16, 18; |
| 9753 BP | 13a, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33; |
| 9753 BR | 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81; |
| 9753 BS | 24a, 24b, 24c, 24d, 24e, 24f, 24g, 24h, 24j, 24k, 24l, 24m, 24n, 24p, 24q, 24r, 24s, 24t, 24u, 24, 26, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58; |