Carshalton South and Clockhouse is an electoral ward in the London Borough of Sutton. The ward was first used in the 2002 elections. It returns councillors to Sutton London Borough Council.
There was a revision of ward boundaries in Sutton in 2022.
The by-election will take place on 22 May 2025, following the resignation of Amy Haldane.
The election took place on 5 May 2022.
The election took place on 3 May 2018.
The election took place on 22 May 2014.