Ceredigion ( ), historically Cardiganshire, is a county in the west of Wales. It borders Gwynedd across the Dyfi estuary to the north, Powys to the east, Carmarthenshire and Pembrokeshire to the south, and the Irish Sea to the west. Aberystwyth is the largest settlement and, together with Aberaeron, is an administrative centre of Ceredigion County Council.

Aberaeron, previously anglicised as Aberayron, is a town, community and electoral ward in Ceredigion, Wales. Located on the coast between Aberystwyth and Cardigan, its resident population was 1,274 in the 2021 census.