Rochford and Southend East is a constituency^{[n 1]} represented in the House of Commons of the UK Parliament since 2005 by Sir James Duddridge, a Conservative.^{[n 2]}

Under the 2023 Periodic Review of Westminster constituencies, the constituency will only be subject to relatively minor boundary changes (including the loss of St Luke's ward to Southend West), but is to be renamed Southend East and Rochford - to be first contested at the next general election.^[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 a by-election in 1980, though in the elections since a much larger majority suggests a Conservative safe seat. In more recent elections, it had become more marginal however than other Essex constituencies that elected Labour MPs in the 21st century such as Harlow and Basildon.

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).^[5]

The 2017 election saw a 5% swing to Labour, cutting Duddridge's majority by 3,928 votes. In the 2019 election however, a 7.4% swing from Labour to the Conservatives gave Duddridge a 12,286 majority; his largest ever majority under the seat's current boundaries.

Local government

Currently the 31 Council seats held in Rochford and Southend East are 7 Conservative (from Rochford), 10 Independent, 7 Labour, 5 Conservative and 2 UKIP (from Southend).

This seat was created for the 1997 general election primarily from the abolished constituency of Southend East, with the addition of Rochford and Great Wakering, which were previously in the abolished Rochford constituency.

It has been held by the Conservatives since its formation.

• List of parliamentary constituencies in Essex