De Koamscher is een straat te Haaksbergen in de gemeente Haaksbergen en is gelegen in de Nederlandse provincie Overijssel.
| Postcode | Huisnummers |
|---|---|
| 7482 HK | 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43; |
| 7482 HJ | 38, 36, 34, 32, 30, 28, 26, 24, 22, 20, 20 G005, 20 G004, 20 G003, 20 G002, 20 G001, 18, 16, 14, 12, 10, 8, 6, 4, 2; |