Costello's Island is in the Electoral Division of Clonfert, in Civil Parish of Clonfert, in the Barony of Longford, in the County of Galway

The Irish name for Costello's Island is Oileán an Choistealaigh

Costello's Island is on Costello's Island.


It is located at 53° 15' 20" N, 8° 1' 46" W.


Costello's Island has an area of:

Nationwide, it is the 60122nd largest townland that we know about

Within Co. Galway, it is the 4281st largest townland


We don't have a record for what townlands (if any) Costello's Island borders


We don't know about any subtownlands in Costello's Island.

Genealogy / Ancestry / Records Search

Curious to see who lived in Costello's Island in the past? Maybe even seeing scans of their handwritten census returns?

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Costello's Island was added to OpenStreetMap on 21 Dec 2014 by Boggedy.

The attribution for this townland is