Claremorris (Irish: Clár Chlainne Mhuiris) is a town in County Mayo in the west of Ireland, at the junction of the N17 and the N60 national routes. The population of Claremorris in the 2011 Census was 3,979.The town sits at the bottom of a valley, all roads leading to the town follow hills, in particular the old Knock road (known as the Knock hill) and Courthouse road. Although low lying the town does not experience flooding.