Welsh: Wrecsam Maelor
|- Succeeded by||Wrexham County Borough|
From Denbighshire came the municipal borough of Wrexham and Wrexham Rural District (less the parishes of Llangollen Rural and Llantysilio). From Flintshire came Maelor Rural District and the parish of Marford and Hoseley from Hawarden Rural District. The Flintshire areas had been exclaves, separated from the rest of the county by Denbighshire.
The district was abolished in 1996, with its area forming the bulk of Wrexham County Borough.