Kilronan, a parish, in the union of Clonmel, barony of Glenahiry, county of Waterford, and province of Munster, 4 miles (S.W.) from Clonmel, on the new road to Dungarvan; containing 4772 inhabitants. It comprises 16,702 statute acres including a considerable quantity of mountain land, much of which, however, is planted or under cultivation. Limestone is found in several places. Some of the scenery is extremely rich and varied, particularly where the river Suir, which forms the northern and western boundaries of the parish, separates Kilmanahan Castle from Knocklofty, in the county of Tipperary, the seat of the Earl of Donoughmore. There are constabulary police stations at Kilmanahan-Bridge and Four-Mile-Water: fairs are held at Windygap on June 21st and Aug 21st.
The living is a vicarage, in the diocese of Lismore, and in the patronage of the Duke of Devonshire, in whom the rectory is impropriate: the tithe rent-charge is £290.15., of which £166.3. are payable to the impropriator, and the remainder to the vicar. There is no glebe-house or glebe. In Roman Catholic divisions the parish forms part of the district of Newcastle, or Four-Mile-Water, at which latter place is a neat chapel. There are some remains of the church, and the fort of Castlereagh; also of Castle Conagh, a square building, occupying the summit of a limestone rock on the bank of the river Neir, a tributary of the Suir.