| Main Town | Town | County | Country | Type | Update |
|---|---|---|---|---|---|
| No | Johnstown | Carmarthenshire | Wales | Other | EDIT |
| No | Johnstown | Leinster | Ireland | Other | EDIT |
| No | Johnstown | Leinster | Ireland | Other | EDIT |
| No | Johnstown | Leinster | Ireland | Other | EDIT |
| No | Johnstown | Leinster | Ireland | Other | EDIT |
| No | Johnstown | Leinster | Ireland | Other | EDIT |
| No | Johnstown | Munster | Ireland | Other | EDIT |
| No | Johnstown | Wrexham | Wales | Other | EDIT |