There is one place named Blackwater in Ireland.
All places in the world called "Blackwater".
Milltown (15)
Newtown (12)
Castletown (10)
Grange (10)
New Bridge (9)
Cappagh (8)
Raheen (7)
Kill (7)
Kilmore (7)
Newcastle (6)
Whitechurch (6)
Graigue (6)
Churchtown (6)
Kilmurry (6)
Brockagh (6)
Cashel (6)
Drinagh (6)
Johnstown (6)
Ballynamona (6)
Ross (5)
Ballagh (5)
Ballymore (5)
Derreen (5)
Clogh (5)
Cloonmore (5)
Togher (5)
Walterstown (5)
Derry (5)
Mullagh (5)
Ballynakill (5)