| Parish of Clonallan |
| Key | Townland | County | Division | OS Map Ref |
| 1 | Aghavilly | Down | Clonallan | 51 |
| 2 | Aghnamoira | Down | Clonallan | 51 |
| 3 | Aughnagon | Down | Carrickcrossan | 47 & 51 |
| 4 | Ballydesland | Down | Clonallan | 51 |
| 5 | Ballydulany | Down | Mayo | 47 |
| 6 | Ballymaconaghy | Down | Clonallan | 51 |
| 7 | Ballyrussell | Down | Clonallan | 51 |
| 8 | Ballyvally | Down | Mayo | 47 & 51 |
| 9 | Bavan | Down | Carrickcrossan | 47 |
| 10 | Burren | Down | Clonallan | 51 |
| 11 | Cabragh | Down | Carrickcrossan | 47 |
| 12 | Carmeen | Down | Mayo | 47 & 51 |
| 13 | Carrickcrossan | Down | Carrickcrossan | 47 |
| 14 | Carrickmacstay | Down | Clonallan | 51 |
| 15 | Carrogs | Down | Ballyholland | 5l |
| 16 | Clonallan Glebe | Down | Clonallan | 51 & 54 |
| 17 | Clonta Fleece | Down | Mayo | 51 |
| 18 | Croan | Down | Carrickcrossan | 47 |
| 19 | Cullion | Down | Carrickcrossan | 47 |
| 20 | Donaghaguy | Down | Clonallan | 51 & 54 |
| 21 | Edentrumly | Down | Mayo | 47 & 51 |
| 22 | Lurgancanty | Down | Mayo | 51 |
| 23 | Mayo | Down | Mayo | 47 & 51 |
| 24 | Milltown | Down | Mayo | 51 |
| 25 | Tamnaharry | Down | Mayo | 47 & 51 |
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