| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Balle, Mern | 4735 |
| Postal/ZIP Codes in Høvdingsgård, Mern | 4735, 4772 |
| Postal/ZIP Codes in Kindvig, Mern | 4735 |
| Postal/ZIP Codes in Liliendal, Mern | 4735 |
| Postal/ZIP Codes in Nørre Mern, Mern | 4735 |
| Postal/ZIP Codes in Østergård, Mern | 4735 |
| Postal/ZIP Codes in Sageby, Mern | 4735, 4772 |
| Postal/ZIP Codes in Sandvig, Mern | 4735 |
| Postal/ZIP Codes in Skalsby, Mern | 4735 |
| Postal/ZIP Codes in Sønder Mern, Mern | 4735 |
| Postal/ZIP Codes in Tågeby, Mern | 4735 |