Carshalton and Wallington

Carshalton and Wallington is a suburban constituency located in the Borough of Sutton on the outskirts of Greater London. It includes the connected towns of Carshalton and Wallington. Like much of suburban London, the area was rural in character until the arrival of rail transport in the mid 19th century.^[3]

Residents' household income is higher than the national average and in line with the rest of London. Residents have average levels of education and professional employment.^[4] The constituency is mostly affluent but contains some neighbourhoods with high deprivation like St Helier and Roundshaw.^[5] White people make up 69% of the population with Asians being the largest ethnic minority group at 16%.^[6] The area has one of the country's largest Filipino communities.^[7] At the local borough council, most of the constituency is represented by Liberal Democrats with some Labour Party and independent councillors in the north and Conservatives in the south. Unlike most of London, voters in the constituency supported leaving the European Union in the 2016 referendum, with an estimated 56% voting in favour of Brexit.^[4]

The seat was created in 1983, replacing the former constituency of Carshalton, which had voted Conservative at every election since its creation in 1945. The new Carshalton and Wallington initially followed suit as a safe Conservative seat, being won by the party by a wide margin (ranging from 18.8% to 28.7%) at each of the first three general elections of its existence.

However, the large national swing against the Conservatives in 1997 saw the seat gained by the Liberal Democrat Tom Brake by a decisive margin of 11.2%.

Brake would hold the seat for the next 22 years, being one of just eight Liberal Democrat MPs to survive the party's near-wipeout at the 2015 United Kingdom general election - Carshalton and Wallington was one of just two seats in the southern half of England, the other being North Norfolk to be retained by the party that year.

After narrowly holding on to the seat for the Liberal Democrats in both 2015 and 2017, Brake was defeated by the Conservative Elliot Colburn by just 629 votes at the 2019. Brake had been the party spokesman on Brexit. The Liberal Democrats fiercely campaigned against Brexit; however, this seat voted to leave in the 2016 referendum.

The Liberal Democrats regained the seat at the 2024 general election by a margin of 16.9% – their largest ever majority in the constituency.

Demographically this zone of London has little social housing and much of the housing, overwhelmingly semi-detached or detached, is to some extent considered to be in the stockbroker belt; some of the south of the seat has fine views from the slopes of the Downs and many small parks and recreation grounds characterise the district.

• List of parliamentary constituencies in London