Epsom and Ewell is a constituency[n 1] in Surrey represented in the House of Commons of the UK Parliament since 2024 by Helen Maguire, a Liberal Democrat.

Grayling stood down for the 2024 general election, when Helen Maguire of the Liberal Democrats took the seat for the first time on a swing of 18%.

Conservatives regularly run the two slightly included neighbouring councils and until recently the party rarely contested the main borough's elections.

One ward in Epsom, Court, is quite strongly Labour, and several Residents Association councillors have sided against Conservative-run Reigate and Banstead council which is also electorally diverse.

To partly compensate, Leatherhead was transferred from the abolished constituency of Mole Valley (its main successor being Dorking and Horley).