Achill Island

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Achill

Native name: Acaill, Oileán Acla
Topography of Achill
Achill
Geography
Location	Atlantic Ocean
Coordinates	53°57′50″N 10°00′11″W / 53.96391°N 10.00303°W / 53.96391; -10.00303
Archipelago	Achill
Total islands	3 (Achill, Innisbiggle and Achillbeg islands)
Major islands	Achill
Area	36,572 acres (14,800 ha)
Coastline	128 km (79.5 mi)
Highest elevation	688 m (2257 ft)
Highest point	Croaghaun
Administration
Ireland
Province	Connacht
County	Mayo
Barony	Burrishoole
Demographics
Population	2,345 (2022 [1])
Pop. density	17.3/km2 (44.8/sq mi)
Ethnic groups	Irish
Additional information
Ireland's largest island

Achill Island (/ˈækəl/; Irish: Acaill, Oileán Acla) is the largest of the Irish isles and lies off the west coast of Ireland in County Mayo. It had a population of 2,345 in the 2022 census.^[1] Its area is around 148 km² (57 sq mi). Achill is attached to the mainland by Michael Davitt Bridge, between the villages of Achill Sound and Polranny. A bridge was first completed here in 1887. Other centres of population include the villages of Keel, Dooagh, Dooega, Dooniver, and Dugort. The parish's main Gaelic football pitch and secondary school are on the mainland at Polranny. Early human settlements are believed to have been established on Achill around 3000 BC. A significant geographical feature of the island is peat bog.^[2] The parish of Achill consists of Achill Island, Achillbeg, Inishbiggle and the Corraun Peninsula.

Roughly half of the island, including the villages of Achill Sound and Bun an Churraigh are in the Gaeltacht (traditional Irish-speaking region) of Ireland,^[3] although the vast majority of the island's population speaks English as their daily language.