| Country | Wales |
|---|---|
| UK region | Wales |
| Postcode area | SA |
| Unitary Authority | Pembrokeshire |
Johnston postcode districts
Johnston has 1 postcode district
Johnston postcode sectors
Johnston has 1 postcode sector
| Country | Wales |
|---|---|
| UK region | Wales |
| Postcode area | SA |
| Unitary Authority | Pembrokeshire |
Johnston has 1 postcode district
Johnston has 1 postcode sector