Kilrush is a coastal town in County Clare, Ireland. It is also the name of a civil parish and an ecclesiastical parish in Roman Catholic Diocese of Killaloe. It is located near the mouth of the River Shannon in the south-west of the county. Kilrush is one of the listed Heritage Towns of Ireland. The area was officially classified as part of the West Clare Gaeltacht…Kilrush is a coastal town in County Clare, Ireland. It is also the name of a civil parish and an ecclesiastical parish in Roman Catholic Diocese of Killaloe. It is located near the mouth of the River Shannon in the south-west of the county. Kilrush is one of the listed Heritage Towns of Ireland. The area was officially classified as part of the West Clare Gaeltacht, an Irish-speaking community, until 1956.