The London Green Party is the regional party of the Green Party of England and Wales that operates in Greater London. The party holds 3 of the 25 seats in the London Assembly and 45 of the 1,817 London borough councillors.
The London Green Party won 3 of 25 seats in the London Assembly at the 2024 London Assembly election. The table below shows the party's current Assembly Members (AMs).
As of December 2025, Green Party representation on London Councils are:
The table below shows the London Green Party results at United Kingdom (UK) general elections since the London Government Act 1963 created the administrative area of Greater London in 1965. Results between February 1974 and October 1974 are for PEOPLE, results between 1979 and 1983 are for the Ecology Party, and results in 1987 are for the United Kingdom-wide Green Party. All UK general elections use first-past-the-post voting.
The party has never won any seats in London. The London Green Party won 10.0% of the vote at the most recent general election in 2024, its highest ever vote share.
During the United Kingdom's membership of the European Union (1973âÂÂ2020), Greater London participated in European Parliament elections, held every five years from 1979 until 2019. The table below shows the London Green Party results in elections to the European Parliament. Results between 1979 and 1984 are for the Ecology Party, while results in 1989 are for the United Kingdom-wide Green Party. From 1979 to 1994, London members of the European Parliament (MEPs) were elected from ten individual constituencies by first-past-the-post voting; from 1999 to 2019, MEPs were elected from a London-wide regional list by proportional representation.
The party's best results were at the 2009, 2014, and final 2019 European Parliament elections, when it won 1 of 8 seats in London.
The table below shows the results obtained by the Ecology Party in elections to the Greater London Council (GLC). The GLC was the top-tier local government administrative body for Greater London from 1965 to 1986. It replaced the earlier London County Council which had covered a much smaller area. The GLC was dissolved in 1986 by the Local Government Act 1985 and its powers were devolved to the London boroughs and other entities. All GLC elections were conducted under the first-past-the-post voting system. The Ecology Party never won any seats on the GLC.
The table below shows the London Green Party results at London Assembly elections since the Greater London Authority was established in 2000. Assembly elections use the additional member system, a form of mixed member proportional representation, with 14 directly elected constituencies and 11 London-wide top-up seats.
The party's best results were at the 2000, 2021, and 2024 London Assembly elections, when it won 3 of 25 seats.
The table below shows the London Green Party results in London Mayoral elections since the Greater London Authority was established in 2000. Elections between 2000 and 2021 were conducted using the supplementary vote system, which allowed voters to transfer votes from first to second preference candidates. The 2024 election used the first-past-the-post system.
The London Green Party has never won a London mayoral election. The party's best result was at the 2021 London mayoral election, when it won 7.8% of the first preference vote. The party won 5.8% of the vote at the most recent election in 2024.