Marten Janswei is een straat te Lippenhuizen in de gemeente Opsterland en is gelegen in de Nederlandse provincie Friesland.
| Postcode | Huisnummers |
|---|---|
| 8408 JC | 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 4, 4A, 2, 2A, 38; |
| 8408 JB | 47, 45, 43, 41, 37, 35, 33, 31, 29, 27, 25, 23, 21, 19, 17, 15, 11, 9, 7, 5; |