| Locality | Post Code |
|---|---|
| Auskerry, Orkney Islands | KW17 2AU |
| Balfour, Orkney Islands | KW17 |
| Birsay, Orkney Islands | KW17 |
| Burray, Orkney Islands | KW17 |
| Cairston, Orkney Islands | KW16 3JH |
| Crowness Business Park, Orkney Islands | KW15 1ZL |
| Deerness, Orkney Islands | KW17 |
| Dounby, Orkney Islands | KW17 |
| Eday, Orkney Islands | KW17 |
| Egilsay, Orkney Islands | KW17 2QD |
| Evie, Orkney Islands | KW17 |
| Finstown, Orkney Islands | KW17 |
| Flotta, Orkney Islands | KW16 3NP |
| Gairsay, Orkney Islands | KW17 2TY |
| Graemsay, Orkney Islands | KW16 3NG |
| Grimbister, Orkney Islands | KW15 |
| Harray, Orkney Islands | KW17 |
| Hatston, Orkney Islands | KW15 1FL |
| Hatston Industrial Estate, Orkney Islands | KW15 1GD, KW15 1GR |
| Holm, Orkney Islands | KW17 |
| Hoy, Orkney Islands | KW16 3NJ |
| Kirkwall, Orkney Islands | KW15 |
| Longhope, Orkney Islands | KW16 |
| Lyness, Orkney Islands | KW16 |
| North Ronaldsay, Orkney Islands | KW17 |
| Orkney, Orkney Islands | KW17 |