FAQs about UK parliament elections and voting

This page may give answers to your questions on UK Parliament elections, by-elections and referendums as well as information about your constituency, voting and who can vote.

Who are the candidates in my constituency?

When there is a parliamentary election, a list of the candidates who are standing - or 'Statement of Persons Nominated' - is posted on your local authority website and on local noticeboards where you live, after the deadline for nominations has passed.

You can find official election information for your area via the Electoral Commission website by typing in your postcode at:

In 2017, some additional information about candidates in each constituency was collected online on the independent website, 'Who Can I Vote For?':

Can I vote for a new Prime Minister?

No. You can only vote to elect your local MP in a general election. Even if you live in the constituency represented by the current Prime Minister or the leader of another political party, you are still only voting on whether he or she will be your local MP in the next Parliament

Where can I find the election result in my constituency?

For the 2017 General Election, the House of Commons Library has produced a full set of verified results in each constituency along with national and regional statistics.

Parliamentary election results are also added to each MP's biography page.

Results in each constituency were announced first by local returning officers and are also published on local authority websites.

Can I vote in a UK Parliamentary election?

To vote in the UK you need to be on the electoral register.

The Electoral Commission website gives detailed information on who is eligible to vote, how to register to vote, and the different ways to vote.The Get Involved pages on the Parliament website give a quick guide to voting in the general election.

Can the Queen vote?

Although not prohibited by law, it is considered unconstitutional for the Monarch to vote in an election.

When were women given the vote?

1918 (women aged 30 and over)
1928 (women aged 21 and over)

When were all men given the vote?

1918 (men aged 21 and over)

When was the voting age reduced to 18?

1969 (for both men and women)

Which parliamentary constituency am I in?

The constituency you are in depends on where you live or, in certain cases such as overseas residents or members of the armed forces, where you have lived in the past.

You can use our Constituency Finder to check which constituency you live in.

If your address is very new or falls exactly on the boundary between two constituencies, you may need to check with your local Electoral Registration Office.

Every 8-12 years constituency boundaries are reviewed to take into account movement and growth of the population in the UK.

What is the largest constituency?

Ross, Skye and Lochaber - measures approximately 12,000 square kilometres.

What is the smallest constituency?

Islington North - measures 735 hectares.

Which MP has the largest majority?

After the 2017 General Election, Dan Carden MP holds the largest majority in the seat of Liverpool, Walton with a majority of 32,551.

Which MP has the smallest majority?

After the 2017 General Election, Stephen Gethins MP holds the smallest majority in the seat of North East Fife with a majority of 2.

A ranked list of constituencies by the size of the winning party's majority is available at:

When is the next by-election?

There are no by-elections pending.

When was the last by-election?

The last by-election took place on 4 April 2019:

Ruth Jones [Lab] was elected in the constituency of Newport West

When were previous by-elections held?

Information on by-elections during the 2005-2010 Parliament, the 2010-2015 Parliament and the 2015-2017 Parliament  is given on the About Parliament web pages.

When was the last referendum held in the UK?

A referendum was held on 23 June 2016 to decide whether or not the UK should remain a member of the European Union.

Prior to that there was a referendum in Scotland on 18 September 2014 on whether Scotland should be an independent country. On 5 May 2011 a UK-wide referendum was held on whether to change the voting system for electing MPs to the House of Commons.

Where can I find the results of the EU Referendum?

The full results of the EU Referendum are available on the Electoral Commission website:

Where can I find out more about the EU Referendum 2016?

You can find impartial information on the in-out referendum produced by the Commons Library and Lords Library at the link below. It sets out the background, an analysis of the results and their implications as well as looking at the process for withdrawal from the EU.

    Who could vote in the EU Referendum in 2016?

    To vote in the EU Referendum 2016 you had to be registered to vote and aged 18 or over.

    You must also have been either:

    • a British or Irish citizen resident in the UK;
    • a qualifying Commonwealth citizen; 
    • a British citizen who is a service voter or overseas voter;
    •  an Irish or Commonwealth citizen who would be entitled to vote in European elections in Gibraltar.

      Contact the House of Commons Enquiry Service

      The House of Commons Enquiry Service provides information on the work, history and membership of the House of Commons.

      Our telephone enquiry service is open between 10am-12 midday and 2pm-4pm (Monday to Friday, excluding bank holidays).


      The House of Commons Enquiry Service produces a series of free publications which you can read online, or contact us to request copies.

      House of Commons on Twitter

      Follow @HouseofCommons for updates on the UK House of Commons Chamber.

      Find my constituency

      Ahead of the general election on 8 June, find out which constituency you live in, and which MP represented your area at the end of the 2015-2017 Parliament.