Oostermaat is een straat te Genemuiden in de gemeente Zwartewaterland en is gelegen in de Nederlandse provincie Overijssel.
| Postcode | Huisnummers |
|---|---|
| 8281 RD | 21, 23, 58, 60, 64, 66, 68, 70, 72, 25, 27, 31, 33, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 53, 54, 55, 56; |
| 8281 RB | 32, 30, 28, 26, 24, 22, 18, 17, 16, 15, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 2a, 1; |