Southend East and Rochford is a constituency[a] represented in the House of Commons of the UK Parliament since 2024 by Bayo Alaba, a member of the Labour Party.

[2] Rochford and Southend East had a relatively marginal Conservative majority on its 1997 creation, as it had some of Labour's stronger wards in Southend, such as Kursaal, Milton, St. Luke's and Victoria, with the party nearly gaining its predecessor seat Southend East in 1966, and secondly in a by-election in 1980, though in the elections since a much larger majority suggests a Conservative safe seat.

Dependency on social housing[3] and unemployment benefit in the constituency is low[4] and in the Rochford local council only 14.5% of households do not have a car (band 5 of 5 in the 2011 census) whereas 27% of households in the Southend part lack a car (band 2 of 5).

Small reduction in electorate due to redistribution of local authority wards.

Minor gain of sparsely populated area to the north of the constituency from Rayleigh and Wickford.