Castlereagh is in the Electoral Division of Castlereagh, in Civil Parish of Knockbreda (Castlereagh Upper portion), in the Barony of Castlereagh Upper, in the County of Down

The Irish name for Castlereagh is An Caisleán Riabhach

Castlereagh is not matched up to yet.


It is located at 54° 34' 9" N, 5° 52' 26" W.


Castlereagh has an area of:

Nationwide, it is the 15228th largest townland that we know about

Within Co. Down, it is the 602nd largest townland


Castlereagh borders the following other townlands:


We don't know about any subtownlands in Castlereagh.

Genealogy / Ancestry / Records Search

Curious to see who lived in Castlereagh in the past? Maybe even seeing scans of their handwritten census returns?

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Castlereagh was added to OpenStreetMap on 10 Apr 2015 by Stephen_Co_Antrim.