It was created in 1918, and is represented in the House of Commons of the UK Parliament since 2024 by Andrew Ranger of the Labour Party.

[n 2] The constituency is to retain its name and gain wards, as part of the 2023 Periodic Review of Westminster constituencies and under the June 2023 final recommendations of the Boundary Commission for Wales for the 2024 United Kingdom general election.

[3] Tom Ellis, first elected in 1970, defected in 1981 to the newly founded Social Democratic Party.

For the 1983 general election, major boundary reorganisation saw large areas removed from the Wrexham constituency to form the new constituency of Clwyd South West (later to become Clwyd South).

Wrexham constituency consists of the following electoral wards: Acton, Borras Park, Brynyffynnon, Cartrefle, Erddig, Garden Village, Gresford East and West, Grosvenor, Gwersyllt East and South, Gwersyllt North, Gwersyllt West, Hermitage, Holt, Little Acton, Llay, Maesydre, Marford and Hoseley, Offa, Queensway, Rhosnesni, Rossett, Smithfield, Stansty, Whitegate, Wynnstay.