Opaalstoep is een straat te Assen in de gemeente Assen en is gelegen in de Nederlandse provincie Drenthe.
| Postcode | Huisnummers |
|---|---|
| 9403 SK | 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75A, 75, 31, 29, 27, 25, 23, 21, 19, 17, 15, 13, 11, 9, 7, 5, 3, 1; |
| 9403 SG | 16, 14, 12, 10, 8, 6, 4, 2; |