Parliamentary constituencies in Essex

The county of Essex (which includes the unitary authorities of Southend-on-Sea and Thurrock) is divided into 18 parliamentary constituencies (sub-classified into six of borough type and twelve of county status, affecting the level of expenses permitted and status of returning officer).

In the 2019 general election, all of Essex's seats were won by Conservative MPs by more than 50% of the vote.

[1] Conservative† Labour‡ Liberal Democrat¤ Reform# For the 2023 Periodic Review of Westminster constituencies, which redrew the constituency map ahead of the 2024 United Kingdom general election, the Boundary Commission for England retained the number of constituencies in Essex at eighteen, with minor boundary changes to reflect changes to electoral wards within the county and to bring the electorates within the statutory range.

Primary data source: House of Commons research briefing - General election results from 1918 to 2019[4] The number votes cast for each political party who fielded candidates in constituencies comprising Essex in the 2024 general election were as follows:[1] The number of votes cast for each political party who fielded candidates in constituencies comprising Essex in the 2019 general election were as follows: (Feb) (Oct) 11974 & 1979 - Liberal Party; 1983 & 1987 - SDP-Liberal Alliance * Included in Other (Feb) (Oct) 11974 & 1979 - Liberal Party; 1983 & 1987 - SDP-Liberal Alliance

Key: bulk or all of areas marked † form part of present-day Greater London.