County Sligo is a county in Ireland. It is located in the Border Region and is also part of the province of Connacht. It is named after the town of Sligo. Sligo County Council is the local authority for the county. The population of the county is 65,393 according to the 2011 census.
For more information, see the EN Wikipedia article County Sligo. especially the section "Geography and political subdivisions" and its subsection "Towns and villages"