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Lambeth

Every election cycle we have data for, most recent first.

3 cycles in our data
2.1% all-time seats elected below the quota (4 of 189)
28.0% all-time seats unfairly awarded (53 of 189 across 3 cycles)

Cycles

Council composition as of 2026

63 councillors, by party. One square per seat. Source: opencouncildata annual snapshot — reflects the council at the end of 2026 (after that year's elections, by-elections and defections). Hover any seat for the party.

Most recent election (2026)

In 2026, 63 seats were up across 25 wards. The table below shows what each party actually won — alongside what they would have won if the 63 seats had been shared in proportion to votes received (how, with caveats). The Δ column is the actual seat count minus the proportional seat count — positive numbers are parties First-Past-the-Post over-represented; negative are parties it under-represented.

PartyVotesVote %Seats won% of seatsProportional seatsProportional %Δ
Green Party82,14136.9%2946.0%2438.1%+5
Labour Party77,13634.7%2641.3%2234.9%+4
Liberal Democrats33,64115.1%812.7%1015.9%-2
Conservative Party17,6978.0%00.0%57.9%-5
Reform UK8,7914.0%00.0%23.2%-2
Independent2,2611.0%00.0%00.0%0
Trade Unionist and Socialist Coalition4070.2%00.0%00.0%0
The Socialist Party of Great Britain1590.1%00.0%00.0%0
Christian Peoples Alliance1000.0%00.0%00.0%0
Social Democratic Party380.0%00.0%00.0%0
Total222,371100.0%63100.0%63100.0%0

Vote share vs seats won

The top bar is each party's share of votes cast in this council. Below, one square per seat, coloured by the party that won it — first the actual First-Past-the-Post result, then what a proportional method would have produced from the same vote totals. Divergence between the bar and the actual grid is the indictment of the method.

Vote share
Actual seats
Proportional seats

Full ward-by-ward results for 2026 →

Composition history

One row per opencouncildata annual snapshot — the council at the end of each year (after that year's elections, by-elections and defections). Newest first; hover any seat for the party.

2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

Ward by ward

Each row is a ward, each column a cycle. Each cell shows the top-of-poll candidate's party (swatch) and their share of valid ballots. Wards are matched by name across cycles — boundary reviews can mean a ward of the same name is a slightly different area in a later cycle.

Ward201820222026
Bishop's47%
Brixton Acre Lane57%42%
Brixton Hill61%
Brixton North67%43%
Brixton Rush Common65%49%
Brixton Windrush63%49%
Clapham Common44%
Clapham Common and Abbeville35%42%
Clapham East68%43%
Clapham Park65%43%
Clapham Town54%52%38%
Coldharbour71%
Ferndale63%
Gipsy Hill49%51%52%
Herne Hill46%
Herne Hill and Loughborough Junction53%56%
Kennington59%43%
Knight's Hill69%64%45%
Larkhall65%
Myatt's Fields63%43%
Oval51%60%40%
Prince's60%
St Leonard's50%
St Martin's60%49%
Stockwell63%
Stockwell East54%33%
Stockwell West and Larkhall63%41%
Streatham Common and Vale63%34%
Streatham Hill63%
Streatham Hill East58%44%
Streatham Hill West and Thornton44%49%
Streatham South67%
Streatham St Leonard's56%
Streatham St Leonard’s49%
Streatham Wells52%49%37%
Thornton67%
Thurlow Park57%
Tulse Hill63%
Vassall65%
Vauxhall62%36%
Waterloo and South Bank43%32%
West Dulwich54%39%