Swynswei is een straat te Nij Beets in de gemeente Opsterland en is gelegen in de Nederlandse provincie Friesland.
| Postcode | Huisnummers |
|---|---|
| 9245 HG | 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31, 32A, 32, 60; |
| 9245 HE | 2A, 2C, 2D, 2E, 2F, 2G, 2H, 2J, 2K, 2L, 2, 3A, 3, 4A, 4B, 4C, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16; |