Islanders told to leave if they want a house from council
The islanders fear they face further population losses unless local authorities provide critical funding for social and council housing.
The warning came after it emerged a number of island residents were warned that if they wanted council housing they would have to relocate to the mainland.
In Cape Clear, off the west Cork coast, three houses came on the market but, despite Cork County Council being asked to consider purchasing them, none has so far been secured.
The island lobby group, Comhdháil Oileán na hÉireann (COE), wants greater housing support from councils.
COE chairman Simon Murray warned that access to affordable, quality housing is critical "if Irish island populations are to be sustainable".
Island campaigners said they were "deeply shocked" that some islanders in need of housing have been advised by councils that it can only be provided if they relocate to the mainland.
"This is a policy that can only contribute to island decline," a COE official warned.