Starting with west Cork, and giving voting register numbers as of 2020, here you go - Bere island (177), Cape Clear island (131),Dursey island (6), Hare island (29), Whiddy island (26), Long island, Schull (16), Sherkin island (95).
The Galway islands are Inis Mór (675), Inis Meáin (148), Inis Oírr (210), Inishbofin (183).
The Donegal islands are Arranmore (513), Gola (30), Inishboffin (63), Inishfree (4), Tory (140). The Mayo islands, apart from Achill which is connected by a bridge, are Clare island (116), Inishbiggle (25) and Inishturk (52).