Abergwyngregyn, Bangor, Bethesda, Bontuchaf, Braich-talog, Bron Ogwen, Bryn Eglwys, Bryn-Llwyd, Brynrefail, Caerhun, Carreg y Gath, Cil-geraint, Cilfodan, Clwt-y-bont, Coed Mawr, Coed-y-parc, Crymlyn, Deiniolen, Dinorwic, Dinorwig, Fachwen, Felin-hên, Gallt-y-foel, Gerlan, Glan-Adda, Glasinfryn, Gwernydd, Hên-durnpike, Hirael, Llanberis, Llandygai, Llanllechid, Maesgeirchen, Minffordd, Myndd Llandegai, Mynydd Llandegai, Nant Peris, Nant Peris / Old Llanberis, Old Llanberis / Nant Peris, Pant, Pen-gilfach, Penisa'r Waun, Pentir, Penybryn, Rachub, Rhiwen, Rhiwlas, Seion, Sling, Tal-y-bont, Tanysgafell, Tregarth, Waen-pentir, Waen-wen, Waun, West End