BAGNALSTOWN, a post-town, in the parish of DUNLECKNEY, barony of IDRONE-EAST, county of CARLOW, and province of LEINSTER, 8 miles (S.) from Carlow, and 49 miles (S. S. W.) from Dublin; containing 1315 inhabitants. This town is beautifully situated on the river Barrow, and on one of the mail coach roads from Dublin to Kilkenny; it is a place of considerable trade, and is rapidly rising into importance; there are some extensive corn-mills. It has a patent for two fairs, and ten other fairs have been lately established by the proprietors. Quarter sessions are held here in Jan., April, July, and October. Petty sessions are held every Monday; and there is a manorial court, but no seneschal is at present appointed. Here is a station of the constabulary police. The court-house is a handsome building in the Grecian style, in front of which is a portico with four Doric pillars. There is also a large and handsome R. C. chapel, and a dispensary.