1901 DED	1901 Townland	1911 Townland	1911 DED	Barony	Parish	Union
		Portarlington Town Pt. of.	Portarlington North
Portarlington North	Bishopswood	Bishopswood	Portarlington North	Upper Philipstown	Clonyhurk	Mountmellick
Portarlington North	Clondoolusk	Clondoolusk	Portarlington North	Upper Philipstown	Clonyhurk	Mountmellick
Portarlington North	Derryvilla	Derryvilla	Portarlington North	Upper Philipstown	Clonyhurk	Mountmellick
Portarlington North	Kilmalogue	Kilmalogue	Portarlington North	Upper Philipstown	Clonyhurk	Mountmellick
Portarlington North	Shanderry	Shanderry	Portarlington North	Upper Philipstown	Clonyhurk	Mountmellick
Portarlington North	Imacrannagh	Tinacrannagh	Portarlington North	Upper Philipstown	Clonyhurk	Mountmellick
Portarlington North	Trascan	Trascan	Portarlington North	Upper Philipstown	Clonyhurk	Mountmellick