1901 DED	1901 Townland	1911 Townland	1911 DED	Barony	Parish	Union
		Cregagh Town	Castlereagh
Castlereagh	Ballymaconaghy	Ballymaconaghy	Castlereagh
Castlereagh	Braniel	Braniel	Castlereagh	Castlereagh Upper	Knockbreda	Belfast
Castlereagh	Carnamuck	Carnamuck	Castlereagh	Castlereagh Upper	Knockbreda	Belfast
Castlereagh	Castlereagh	Castlereagh	Castlereagh	Castlereagh Upper	Knockbreda	Belfast
Castlereagh	Cregagh	Cregagh	Castlereagh	Castlereagh Upper	Knockbreda	Belfast
Castlereagh	Gilnaherk	Gilnahirk	Castlereagh	Castlereagh Lower	Knockbreda	Belfast
Castlereagh	Gort Grib	Gortgrib	Castlereagh	Castlereagh Lower	Knockbreda	Belfast
Castlereagh	Lisnasharragh	Lisnasharragh	Castlereagh	Castlereagh Upper	Knockbreda	Belfast
Castlereagh	Slady	Slatady	Castlereagh	Castlereagh Upper	Knockbreda	Belfast
Castlereagh	Tullycarnett	Tullcarnet	Castlereagh