Wexford is a county in Ireland. It is part of the South-East Region and is also located in the province of Leinster. It is named after the town of Wexford. In pre-Norman times it was part of the Kingdom of Uí Cheinnselaig, whose capital was at Ferns. Wexford County Council is the local authority for the county. The population of the county is 145,320 according to the 2011 census.
The county is rich in evidence of early human habitation. Portal tombs (sometimes called dolmens) exist at Ballybrittas (on Bree Hill) and at Newbawn — and date from the Neolithic period or earlier. Remains from the Bronze Age period are far more widespread. Early Irish tribes formed the Kingdom of Uí Cheinnsealaig, an area that was slightly larger than the current County Wexford. The county was one of the earliest areas of Ireland to be Christianised, in the early 5th century. Later, from 819 onwards, the Vikings plundered many Christian sites in the county. Wexford town became a Viking settlement near the end of the 9th century.