County Monaghan is an administrative county in the Republic of Ireland and one of the thirty-two traditional counties of the island of Ireland, located in the province of Ulster. It is named after the town of Monaghan. The population of the county is 55,816 according to the 2006 census. Monaghan is the fourth smallest of the Republic's 26 counties in area and fourth smallest by population. It is the second smallest of Ulster’s 9 counties in size and smallest in terms of population.

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