Llangefni is the county town of Anglesey in Wales and includes the principal workplaces of the Isle of Anglesey Area Council. UK Census 2011 recorded Llangefni's population as 5,116 people, making it the second biggest settlement on the island. The community is near the centre of Anglesey, and is on the River Cefni, after which it is called. Its destinations consist of the Oriel Ynys Môn museum, which information the background of Anglesey and also houses the heritage collection of Charles Tunnicliffe. In the west of the community is a huge senior high school, Ysgol Gyfun Llangefni (Llangefni Comprehensive School), and in the north a Victorian parish church, St Cyngar's, embeded in a woody riverside location called the Dingle. The community was formerly named Llangyngar, Welsh for "St Cyngar's church".