London Borough of Croydon

A Mayor and 25 Assembly Members are elected to represent London every 4 years.

Fourteen of the Assembly Members represent a constituency area. In Croydon's case, the constituency is called Croydon and Sutton - and 11 are elected on a London-wide basis.

The Greater London Authority and London Mayoral Election will take place on Thursday 6 May 2021.

If any vacancies arise for Croydon Council due to a current Councillor resigning, dying or becoming disqualified, then by-elections to fill these vacancies will also take place on 6 May 2021.

Registering to vote

The deadline for registering to vote for these elections is Midnight, Monday 19 April 2021.

You can register to vote at

If you are already registered to vote, you do not need to re-register for this election. You can check if you are registered to vote by emailing We will aim to reply to your request within 3 working days. 

Voting by post

If you're registered to vote, you can apply to vote by post. While the Returning Officer will take all necessary steps in order to make the polling stations Covid-safe, electors may wish to consider carefully whether they would rather vote by post while Covid measures are needed.

The deadline to apply for a new postal vote, or to amend or cancel and existing postal vote is Tuesday 20 April at 5pm.

Get more information on voting by post.

Postal votes will be dispatched from Wednesday 14 April 2021.

If you spoil or lose your postal vote you can apply for a replacement postal vote. Please contact Electoral Services if you think you need your postal vote re-issued,

Voting by proxy

If you're registered to vote, you can also apply to appoint a proxy (someone to vote on your behalf at their polling station) if you are unable to go to the polling station yourself.

The deadline to apply for a proxy vote is Tuesday 27 April at 5pm.

The deadline to amend or cancel existing proxy votes is Tuesday 20 April at 5pm.

The person appointed as a proxy can apply to cast the vote by post, but must apply to do so by Tuesday 20 April at 5pm.

If you find out after 5pm on Tuesday 27 April that you are unable to vote at your polling station for employment reasons, or you have a medical emergency – including testing positive for COVID-19 or needing to self-isolate – then you can apply for an emergency proxy up to 5pm on election-day.

Get more information on voting by proxy.

Voting in polling stations

The Returning Officer will be introducing a number of measures in order to make voting at polling stations safe for electors and staff working at the. These measures include:

  • controlled access to polling stations to maintain safe distancing between electors and staff.
  • regular cleaning of high-touch surfaces
  • all staff and electors will be required to wear face-coverings
  • hand sanitation on entering the polling station
  • all venues will be assessed to ensure that they are Covid-safe and staff will be trained to ensure that measures are implemented correctly.

Electors are also being asked to bring their own pen or pencil to the polling station to use when they vote - to reduce the risk of spreading Coronavirus by not sharing pens or pencils with others.

Find out more about voting in polling stations.

It is expected that there will be more new polling stations this year than normal, because some are either unavailable, or unsuitable to implement the Covid safety measures. Please check where your polling station is located before you go out to vote, either on your poll card or on our polling station finder (from April 2021).

Poll cards

Poll cards will be sent out at the end of March to all citizens registered to vote. These are for information only – they are not needed in order to vote. Please check the location of your polling station before you go to vote.

Who can vote

You can vote in Greater London Authority and London Mayoral Elections if you are:

  • a British citizen - excluding overseas electors
  • a qualifying Commonwealth citizen (including Cyprus and Malta)
  • from Ireland
  • a European Union citizen
  • registered to vote by no later than 19 April 2021

Information for candidates for the Greater London Authority and London Mayoral Elections

Information and prospective candidate nominations packs for the Mayoral and London Assembly Elections can be found via the London Elects website.

If you are interested in standing as a Constituency Member in Croydon and Sutton, please contact Croydon Electoral Services at