Parliamentary constituencies in London

The Commission calculated that the number of seats to be allocated to the London region will increase by 2 from 73 to 75.

Under the proposals, an additional constituency named Stratford and Bow would be created, covering parts of the boroughs of Newham and Tower Hamlets and straddling the River Lea and, in the south of the city, there would be a new constituency named Streatham and Croydon North, covering parts of the boroughs of Croydon and Lambeth.

With the exception of the City of London, whose representation was reduced from four to two MPs, each borough, or division thereof, was represented by one MP.

In 1900, the county was divided into 28 boroughs (plus the City of London) and the outer boundary was adjusted.

The City of London continued to be represented by two MPs despite the very small size of its electorate.

Under the Representation of the People Act 1948, which came into effect for the 1950 general election, the county of London was divided into 43 borough constituencies.

Formerly in Essex: Formerly in Hertfordshire: Formerly in Kent: Formerly in Middlesex: Formerly in Surrey: When Greater London was created in 1965 the existing constituencies crossed county boundaries.

Constituencies crossed borough boundaries between Bexley and Greenwich; Ealing, and Hammersmith and Fulham; Kensington and Chelsea, Westminster and the City of London; Kingston upon Thames and Richmond upon Thames; Lambeth and Southwark; Newham and Tower Hamlets; and Redbridge and Waltham Forest.

Constituencies cross borough boundaries between Barking and Dagenham, and Havering; Brent and Camden; Harrow and Hillingdon; Kensington and Chelsea, and Hammersmith and Fulham; Redbridge and Waltham Forest; Bexley and Greenwich; Bromley and Lewisham; Kingston upon Thames and Richmond upon Thames; Lambeth and Southwark; and Westminster and the City of London.

Conservative Labour Social Democratic Speaker Conservative Independent Labour Liberal Democrats The boroughs of Barking & Dagenham, Enfield, Hackney, Haringey, Havering, Islington, Newham, Redbridge, Tower Hamlets and Waltham Forest.

Conservative Labour Liberal Social Democratic Change UK Conservative Independent Labour Liberal Liberal Democrats Social Democratic (1983–88) Continuing Social Democratic (1988–90) The number of votes cast for each political party who fielded candidates in constituencies in the London region in the 2024 general election were as follows:[13] Primary data source: House of Commons research briefing – General election results from 1918 to 2019 Key: Key: These are maps of the results of the last 14 general elections in London.