County Monaghan

County Monaghan is a county in Ireland. It is part of the Border Region and is in the province of Ulster. It is named after the town of Monaghan. Monaghan County Council is the local authority for the county. The population of the county is 60,483 according to the 2011 census. The county has existed since 1585, when the Mac Mathghamhna rulers of Airgíalla agreed to join the Kingdom of Ireland. Following the Irish War of Independence and the signing of the Anglo-Irish Treaty, Monaghan was one of three Ulster counties to join the Irish Free State rather than Northern Ireland.Geography and political subdivisionsMonaghan is the fifth smallest of the Republic's 26 counties in area and fourth smallest by population. It is the smallest of Ulster's nine counties in size and also the smallest in terms of population.Baronies Cremorne (Críoch Mhúrn) Dartree (Dartraighe) Farney (Fearnaigh) Monaghan (Muineachán) Trough (An Triúcha)