 Ponciau ward has one of the largest populations (4,486) of Wrexham County Borough.The ward is described as ""The Ponciau North, Ponciau South and Rhos wards of the Community of Rhosllanerchrugog and the Aberoer and Pentrebychan wards of the Community of Esclusham"" in the OPSI document Statutory Instrument 1998 No.3142.