This constituency was the Parliamentary borough of Dungarvan in County Waterford. Until the Parliamentary Boundaries (Ireland) Act, 1832 (passed alongside the Irish Reform Act 1832) it was coterminous with the manor of Dungarvan, and the franchise was exercised by potwallopers of the town and forty shilling freeholders of the manor. Commissioners appointed in 1832 and 1836 to revise Irish parliamentary borough boundaries described the old border as "supposed to contain about 10,000 Statute Acres" and with an "ill defined" boundary; their accompanying map shows several detached parts and enclaves. Although the 1832 commissioners suggested radical simplification in the boundary, the only change in 1832 was to exclude the detached parts and include the enclosed enclaves to create a single area. This boundary is marked in violet on the Ordnance Survey of Ireland's six-inch map, published a few years later. The 1836 commissioners recommended a much smaller boundary, including the urban area and suburbs while excluding the large rural hinterland.
^ abc"Dungarvan". Reports and instructions by Lord Lieutenant, with reference to boundaries and divisions of cities, boroughs and towns corporate in Ireland. Sessional papers. Vol.29 No.301. 10 May 1837. pp. 78–80.