|Anthem: "Isle of Innisfree" and |
"Down by the Salley Gardens"
|Region||Northern and Western|
|• Local authority||Sligo County Council|
|• Dáil constituency||Sligo–Leitrim|
|• EP constituency||Midlands–North-West|
|• Total||1,837 km2 (709 sq mi)|
|Highest elevation||647 m (2,123 ft)|
|• Density||36/km2 (92/sq mi)|
|Time zone||UTC±0 (WET)|
|• Summer (DST)||UTC+1 (IST)|
|Eircode routing keys|
F56, F91 (primarily)
|Telephone area codes||071 (primarily)|
| Vehicle index|
County Sligo ( /ˈslaɪɡoʊ/ SLY-goh, Irish : Contae Shligigh) is a county in Ireland. It is in the Northern and Western Region and is part of the province of Connacht. Sligo is the administrative capital and largest town in the county. Sligo County Council is the local authority for the county. The population of the county was 65,535 at the 2016 census.  It is noted for Benbulben Mountain, one of Ireland's most distinctive natural landmarks.
The county was officially formed in 1585 by Sir Henry Sidney, Lord Deputy of Ireland, but did not come into effect until the chaos of the Nine Years' War ended, in 1603. Its boundaries reflect the Ó Conchobhair Sligigh confederation of Lower Connacht (Irish : Íochtar Connacht) as it was at the time of the Elizabethan conquest.
This confederation consisted of the tuatha, or territories, of Cairbre Drumcliabh, Tír Fhíacrach Múaidhe, Tír Ollíol, Luíghne, Corann and Cúl ó bhFionn. Under the system of surrender and regrant each tuath was subsequently made into an English barony: Carbury, Tireragh, Tirerril, Leyny, Corran and Coolavin. The capital of the newly shired county was placed at Sligo.
A causewayed enclosure discovered in 2003 at Maugheraboy is one of the earliest indications of Neolithic farming activity on the Cúil Irra Peninsula.  The nearby megalithic cemetery of Carrowmore forms part of a huge complex of Stone Age remains connecting Carrowkeel in south Sligo to the Ox Mountains, to the Cuil Irra Peninsula, where the passage tomb named after the legendary Queen Maeve, Miosgán Médhbh, dominates the western skyline from the crest of Knocknarea Mountain.
The Caves of Kesh, famous in Irish mythology, are in south County Sligo. A recent decoding  of the work of Marinus of Tyre and Ptolemy shows Sligo as the likely location of Nagnata, an important place of assembly in the Iron Age. Famous medieval manuscripts written in the area include the Book of Ballymote , written in the territory of Corran, the Great Book of Lecan , and the Yellow Book of Lecan , both written in Tir Fhiacrach. The patron of the Annals of the Four Masters was Fearghal Ó Gadhra of Coolavin in south County Sligo.
Sligo County Council is the local authority for the county. At the 2019 Sligo County Council election, it was divided into three local electoral areas (LEAs): Ballymote–Tobercurry (7 seats), Sligo–Strandhill (6 seats), and Sligo–Drumcliff (5 seats).  Each of these form a municipal district, with the containing Sligo–Strandhill known as the borough district of Sligo. 
Under the Local Government (Ireland) Act 1898, County Sligo was divided into the rural districts of Boyle No. 2, Dromore West, Sligo, and Tobercurry, and the urban district of Sligo.  Unlike most urban districts, Sligo had retained its borough corporation. The rural districts were abolished in 1925.  Sligo Borough Corporation became a borough council in 2002,  before being abolished in 2014 in common with all borough and town councils in Ireland. 
County Sligo is part of the Dáil constituency of Sligo–Leitrim (4 TDs).  At the 2020 election, Martin Kenny (Sinn Féin), Frank Feighan (Fine Gael), Marc MacSharry (Fianna Fáil) and Marian Harkin (Ind) were elected.
This coat of arms was adopted by Sligo County Council in 1980. The design on the black shield, which shows an open book on which there is a Celtic Cross and a red rose, represents collectively the literary and cultural history of Sligo. These refer to such early works as the Books of Ballymote and Lecan, while the rose was a significant theme in the poetry of W. B. Yeats. The escallop shells sprinkled on the shield refer to the origin of the word Sligeach – "a place abounding in shells". The boar's head refers to the "wild boar of Benbulben" in the Diarmuid and Gráinne myth. The colour scheme of the crest incorporates the Sligo GAA colours of black and white. 
County Sligo is the setting for a large number of the texts in the Mythological Cycles. The story of Diarmad and Grainne has its final act played out on Ben Bulben. The Second Battle of Moytirra is associated with Moytirra in South County Sligo. Other texts include Bruidean Ceise Corann, set on Keash Mountain. The rich array of megalithic monuments in the area has been an inspiration to artists and writers such as Sir Samuel Ferguson. The poet and Nobel laureate W. B. Yeats (1865–1939) spent much of his childhood in northern Sligo and the county's landscapes (particularly the Isle of Innisfree, in Lough Gill) were the inspiration for much of his poetry. Yeats said, "the place that has really influenced my life most is Sligo". He is buried in North County Sligo, "Under Ben Bulben", in Drumcliff. W. B. Yeats's brother Jack, a painter, also was inspired by the Sligo landscape.
County Sligo has a long history of traditional music. The south of the county is particularly noted with such musical luminaries as James Morrison, Michael Coleman, Paddy Killoran, Fred Finn, Peter Horan, Joe O'Dowd, Jim Donoghue, Martin Wynne, Oisín Mac Diarmada (of Téada), tin-whistle player Carmel Gunning and the band Dervish. The county has many traditional music festivals and one of the most well-known is the Queen Maeve International Summer School, a traditional Irish Music summer school of music and dance which is held annually in August in Sligo Town. On the more contemporary music scene there are Westlife, Tabby Callaghan and The Conway Sisters who are from Sligo. Strandhill, about 9 km west of Sligo, hosts the Strandhill Guitar Festival  each year, featuring a wide variety of guitar music and musicians.
The county is home to League of Ireland Premier Division club Sligo Rovers, who have played home matches at The Showgrounds since they were founded in 1928 and won the league on 3 occasions. Their colours are red and white, hence their nickname the Bit 'O' Red. Brother Walfrid, the founder of Celtic Football Club, was born in Ballymote, in the south of the county.
The county is represented in Gaelic Games by Sligo GAA. Their colours are black and white. Sligo has won the Connacht Championship 3 times.
Sligo is the 22nd largest of Ireland's 32 counties in area and the 26th largest in terms of population.  It is the fourth largest of Connacht's 5 counties in size and third largest in terms of population. The County borders County Mayo to the west, County Roscommon to the south and south-east and County Leitrim to the northeast.
The Dublin–Sligo railway line is operated by Iarnród Éireann in Ireland. It starts in Dublin Connolly station, terminating at Sligo Mac Diarmada railway station in Sligo. In the county there are stations at Ballymote and Collooney.
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County Leitrim is a county in Ireland. It is in the province of Connacht and is part of the Northern and Western Region. It is named after the village of Leitrim. Leitrim County Council is the local authority for the county, which had a population of 35,087 according to the 2022 census.
Connacht, is one of the four provinces of Ireland, in the west of Ireland. Until the ninth century it consisted of several independent major Gaelic kingdoms.
County Galway is a county in Ireland. It is in the Northern and Western Region, taking up the south of the province of Connacht.
County Roscommon is a county in Ireland. It is part of the province of Connacht and the Northern and Western Region. It is the 11th largest Irish county by area and 27th most populous. Its county town and largest town is Roscommon. Roscommon County Council is the local authority for the county. The population of the county was 69,995 as of the 2022 census.
County Cavan is a county in Ireland. It is in the province of Ulster and is part of the Northern and Western Region. It is named after the town of Cavan and is based on the historic Gaelic territory of East Breffny (Bréifne). Cavan County Council is the local authority for the county, which had a population of 76,176 at the 2016 census.
Sligo is a coastal seaport and the county town of County Sligo, Ireland, within the western province of Connacht. With a population of approximately 20,000 in 2016, it is the largest urban centre in the county, with Sligo Borough District constituting 61% (38,581) of the county's population of 63,000.
The Local Government (Ireland) Act 1898 was an Act of the Parliament of the United Kingdom of Great Britain and Ireland that established a system of local government in Ireland similar to that already created for England, Wales and Scotland by legislation in 1888 and 1889. The Act effectively ended landlord control of local government in Ireland.
John Perry is a former Irish Fine Gael politician who served as a Minister of State from 2011 to 2014. He served as a Teachta Dála (TD) from 1997 to 2016.
Sligo–Leitrim is a parliamentary constituency that has been represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas, from the 2016 general election. The constituency elects 4 deputies on the system of proportional representation by means of the single transferable vote (PR-STV). The constituency previously existed from 1923 to 1937 and from 1948 to 2007.
Roscommon–South Leitrim was a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas, from 2007 to 2016. The constituency elected 3 deputies. The method of election was proportional representation by means of the single transferable vote (PR-STV).
Sligo–North Leitrim was a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas, from 2007 to 2016. The constituency elected 3 deputies. The method of election was proportional representation by means of the single transferable vote (PR-STV).
Ballysadare, locally also Ballisodare, is a town in County Sligo, Ireland. It is about 7 kilometres south of Sligo town. The town developed on an important crossing of the Owenmore River.
Dromahair is a village in County Leitrim in the northern part of Connacht, the western province in Ireland. Dromahair is 10 km (6 mi) from Manorhamilton and 17 km (10 mi) from Sligo town.
The R293 road is a regional road in Ireland linking the N17, via a junction in the townland of Ballinabole near Collooney in County Sligo, to the outskirts of Ballyhaunis in County Mayo. En route it passes through three towns, Ballymote and Gorteen in County Sligo and Ballaghaderreen in County Roscommon. The road is 55 km (34 mi) long.
John Francis O'Beirne was a farmer, businessman, Irish republican activist and Fianna Fáil politician in County Sligo. He served briefly in Seanad Éireann.
The Sligo Way is a long-distance trail mainly in County Sligo, Ireland. It is 78 kilometres long and begins in Larrigan, near Lough Talt and ends in Dromahair, County Leitrim. It is typically completed in three days. It is designated as a National Waymarked Trail by the National Trails Office of the Irish Sports Council and is managed by Sligo County Council, Sligo Integrated Development Company and the Sligo Walks Partnership.
Cairbre Drom Cliabh, was an Irish túath in the ancient confederation of Íochtar Connacht, now County Sligo in the west of Ireland. It is now represented by the barony of Carbury. Also known as Cairbre na Catha. It existed from at least the 6th century to the 16th century AD.
A Sligo County Council election was held in County Sligo in Ireland on 24 May 2019 as part of that year's local elections. All 18 councillors were elected for a five-year term of office from 3 local electoral areas (LEAs) by single transferable vote.
The Hawk's Well Theatre opened in Sligo Town on 12 January 1982. Located next to Sligo's tourist office, it was the first purpose-built theatre in rural Ireland.
The Coolera Peninsula is a peninsula in Sligo Bay, County Sligo, Ireland. It is the most populous of County Sligo's peninsulas, and the second-largest by land area. The primary population centres on Coolera are the coastal town of Strandhill on its western shore, and Magheraboy, a suburb of Sligo town.
Coordinates: 54°15′N8°40′W / 54.250°N 8.667°W