| Locality | Post Code |
|---|---|
| Garmerwolde, Groningen | 9798 |
| Glimmen, Groningen | 9756 |
| Groningen, Groningen | 9711, 9712, 9713, 9714, 9715, … |
| Haren, Groningen | 9751, 9752, 9753 |
| Harkstede, Groningen | 9614 |
| Lageland, Groningen | 9622, 9623 |
| Lellens, Groningen | 9794 |
| Meerstad, Groningen | 9613 |
| Noordlaren, Groningen | 9479 |
| Onnen, Groningen | 9755 |
| Sint Annen, Groningen | 9796 |
| Ten Boer, Groningen | 9791 |
| Ten Post, Groningen | 9792 |
| Thesinge, Groningen | 9797 |
| Winneweer, Groningen | 9793 |
| Woltersum, Groningen | 9795 |
| Groningen Postal Codes | |
|---|---|
| Westerwolde | Westerkwartier |
| Veendam | Stadskanaal |
| Pekela | Oldambt |
| Midden-Groningen | Loppersum |
| Het Hogeland | Groningen |
| Delfzijl | Appingedam |