The seat was created in boundary changes in 1983, as part of an expansion of Northern Ireland's constituencies from 12 to 17, and was predominantly made up from the old Londonderry constituency. From further revisions in 1995 (when it lost parts of the district of Strabane to the West Tyrone constituency), and until the 2008 revision, it covered exactly the same area as Derry City Council.
Prior to the 2010 general election the transfer of Claudy and Banagher wards to East Londonderry were approved through the passing of the Northern Ireland Parliamentary Constituencies Order[2] in 2008.
The wards within the constituency are among the poorest in the UK with high unemployment, high welfare dependency and the lowest employment rate for Northern Ireland.
The seat has typically been an SDLP stronghold however in 2017 Sinn Féin gained the seat for the first time with the smallest majority in Northern Ireland of 169. In 2019 SDLP leader Colum Eastwood won the seat back with an 18% swing and 17,000 majority.
Durkan retained the seat in 2010. This seat also gave the Alliance Party their worst share of the vote in Northern Ireland, polling just 0.6% of the votes. Durkan was re-elected to a third term in 2015, increasing his share of the vote to 47.9% and winning a majority of 6,046 votes.
In the 2016 referendum to leave the European Union, the constituency was estimated to have voted remain by 78.3%. This was the sixth highest support for remain for a constituency, and the highest support for remain in Northern Ireland.[5]
In the 2019 election, the seat was recaptured by SDLP leader Colum Eastwood. Sinn Féin's vote share dropped significantly from 39.7% in 2017 to 20.7% in 2019, which was the lowest percentage share that that party had won in any general election in the constituency since 1992.