Sinia is een straat te Grou in de gemeente Leeuwarden en is gelegen in de Nederlandse provincie Friesland.
| Postcode | Huisnummers |
|---|---|
| 9001 LX | 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 15, 13, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 1a; |