The green field is common with the arms of the Wrexham RDC and the ermine spots are from the arms of the Borough of Wrexham. The crossed crosiers common to the arms of both former Wrexham authorities, represent Valle Crucis Abbey and it is said the grazing land in the district. The blue lion on gold is from the heraldry of the Hanmers of Maelor and the wave represents the River Dee in an heraldic map of the new area.
The red mural crown symbolizes brick-making and Madog ap Meredydd's castle at Overton. The Welsh red dragon rests a foot on a black diamond edged with gold, for coal and other mineral wealth, and the tree stands for forestry and the rural areas.
The Welsh dragons hold a green pennon for agriculture, and the other emblems represent iron founding and engineering.
The motto is from Virgil