Ringforts, known in Irish as raths or lios depending on their construction, were the most common form of rural settlement in early medieval Ireland, typically dating from around the fifth to the twelfth centuries. They served as enclosed farmsteads, their raised banks and ditches defining the boundary between domestic life and the wider world, and tens of thousands of them once dotted the Irish countryside.

The Harristown example is one of countless such monuments recorded across Kilkenny, a county whose fertile interior made it well suited to the kind of mixed pastoral and arable farming that ringfort-dwelling families practised. The earthen bank of a typical rath was thrown up from the spoil of the surrounding ditch, sometimes reinforced with timber or stone, and the interior would have held a cluster of wooden buildings, animal pens, and storage structures. Over time many ringforts were absorbed into field systems, levelled by ploughing, or reduced to faint crop marks, making those that survive as upstanding earthworks all the more significant.