| Urban municipalities |
|---|
| Brzeg, Brzeski |
| Grodków, Brzeski |
| Lewin Brzeski, Brzeski |
| Lubsza, Brzeski |
| Olszanka, Brzeski |
| Skarbimierz, Brzeski |
| All postal codes in Opolskie |
|---|
| Brzeski |
| Głubczycki |
| Kędzierzyńsko-kozielski |
| Kluczborski |
| Krapkowicki |
| Namysłowski |
| Nyski |
| Oleski |
| Opole |
| Opolski |
| Prudnicki |
| Strzelecki |