The Townland is the smallest administrative division in the country and varies in size from approximately 1 acre to 7000 acres. All other territorial divisions are collections of townlands. There are circa 51,000 townlands in the Republic of Ireland. Townland Boundary dataset is generated from the OSi National Statutory Boundary dataset.Townlands dataset generated from the 2019 OSi National Statutory Boundary dataset. Generalised to 20 metres.Coordinate Reference System: Irish Transverse Mercator.