Opinion polling for the 2017 United Kingdom general election explained

In the run-up to the general election on 8 June 2017, various organisations carried out opinion polling to gauge voting intentions. Results of such polls are displayed in this article. Most of the polling companies listed are members of the British Polling Council (BPC) and abide by its disclosure rules.

The date range for these opinion polls is from after the previous general election, held on 7 May 2015, to immediately before 8 June 2017. Under fixed-term legislation, the next general election was scheduled to be held on 7 May 2020. However, on 18 April 2017, Prime Minister Theresa May said that she would seek to bring forward the general election to Thursday 8 June 2017, which the House of Commons approved on 19 April. For an early election to be held, two-thirds of the total membership of the House had to support the resolution. The Conservative Party went into the election defending its overall majority won in 2015 with the Labour Party as the leading opposition party both in terms of polling numbers and seats.

Most opinion polls cover only Great Britain, as Northern Ireland seats are contested by a different set of political parties. Most YouGov polls include the Scottish National Party and Plaid Cymru as single options. The English and Welsh, Scottish, and Northern Irish Green Parties are also treated as a single option by most polls.

Poll results

Poll results are listed in the table below in reverse chronological order.^[1] The highest percentage figure in each polling survey is displayed in bold, and the background shaded in the leading party's colour. The "Lead" column shows the percentage-point difference between the two parties with the highest figures. If there is a tie, no figure is shaded but both are displayed in bold. Poll results are generally rounded to the nearest percentage point (where a result is less than 0.5%, but more than zero, it is indicated by '*'). Percentages may not add to 100%, due to rounding. Data for all polls listed was obtained online, with the exception of Ipsos MORI and Survation, who obtained their data both online and by telephone.

The poll results shown are the 'headline' figures, those published or broadcast in the mainstream media. Polling organisations obtain raw data from respondents and subsequently adjust or 'weight' this according to their projections of turnout and voting on election day based on, for example, age and party preference. Each polling organisation weights its raw data differently.

The six parties with the largest numbers of votes in the 2015 general election are listed here. Other parties are included in the "Others" column.

2017

Date(s) conducted	Polling organisation/client	Sample size	Con	Lab	UKIP	Lib Dem	SNP	Green	Others	Lead
8 June	General Election results (GB only) ^[2]	–	43.5%	41.0%	1.9%	7.6%	3.1%	1.7%	1.2%	2.5%
6–7 Jun	Ipsos MORI/Evening Standard	1,291	44%	36%	4%	7%	5%	2%	2%	8%
6–7 Jun	BMG/The Herald	1,199	46%	33%	5%	8%	4%	3%	2%	13%
6–7 Jun	Survation	2,798	41%	40%	2%	8%	4%	2%	2%	1%
6–7 Jun	ICM/The Guardian	1,532	46%	34%	5%	7%	5%	2%	1%	12%
5–7 Jun	YouGov/The Times	2,130	42%	35%	5%	10%	5%	2%	1%	7%
5–7 Jun	ComRes/Independent	2,051	44%	34%	5%	9%	4%	2%	1%	10%
4–7 Jun	Qriously/Wired	2,213	39%	41%	4%	6%	3%	7%		2%
2–7 Jun	Panelbase	3,018	44%	36%	5%	7%	4%	2%	2%	8%
1–7 Jun	Kantar Public	2,159	43%	38%	4%	7%	4%	2%	2%	5%
4–6 Jun	Opinium	3,002	43%	36%	5%	8%	5%	2%	1%	7%
2–4 Jun	ICM/The Guardian	2,000	45%	34%	5%	8%	4%	3%	1%	11%
3 Jun	London terror attack, national campaigning partially suspended on 4 June^[3]
3 Jun	Survation/Mail on Sunday	1,049	40%	39%	5%	8%	4%	5%		1%
2–3 Jun	Survation/Good Morning Britain	1,103	41%	40%	3%	6%	4%	1%	4%	1%
1–2 Jun	YouGov/Sunday Times	1,989	42%	38%	4%	9%	4%	2%	0%	4%
31 May–2 Jun	ICM/The Sun on Sunday	2,051	45%	34%	5%	9%	4%	3%	1%	11%
31 May–2 Jun	ComRes/Sunday Mirror, Independent on Sunday	2,038	47%	35%	4%	8%	3%	1%	1%	12%
31 May–1 Jun	Norstat	1,013	39%	35%	6%	8%		3%	9%	4%
31 May–1 Jun	ORB/Telegraph	1,656	45%	36%	4%	8%	7%			9%
30 May–1 Jun	Ipsos MORI/Evening Standard	1,046	45%	40%	2%	7%	3%	2%	1%	5%
26 May–1 Jun	Panelbase	1,224	44%	36%	5%	7%	5%	2%	1%	8%
30–31 May	Opinium/Observer	2,006	43%	37%	5%	6%	5%	2%	1%	6%
30–31 May	YouGov/The Times	1,875	42%	39%	4%	7%	4%	2%	1%	3%
25–30 May	Kantar Public	1,199	43%	33%	4%	11%	4%	3%	1%	10%
26–29 May	ICM/The Guardian	2,002	45%	33%	5%	8%	4%	3%	2%	12%
26–29 May	Qriously	1,153	43%	39%	5%	6%	3%	2%	3%	4%
26–27 May	Survation/Good Morning Britain	1,009	43%	37%	4%	8%	2%	1%	4%	6%
25–26 May	YouGov/Sunday Times	2,003	43%	36%	4%	9%	4%	2%	1%	7%
24–26 May	ICM/The Sun on Sunday	2,044	46%	32%	5%	8%	4%	2%	1%	14%
24–26 May	ComRes/Sunday Mirror, Independent on Sunday	2,024	46%	34%	5%	8%	4%	2%	1%	12%
24–25 May	ORB/Sunday Telegraph	1,556	44%	38%	5%	7%	4%	2%		6%
24–25 May	YouGov/The Times	2,052	43%	38%	4%	10%	5%	1%	0%	5%
23–24 May	Opinium/Observer	2,002	45%	35%	5%	7%	5%	2%	1%	10%
19–23 May	Panelbase/The Sunday Times	1,019	48%	33%	4%	7%	5%	2%	1%	15%
22 May	Manchester Arena bombing, national campaigning suspended 23–24 May
18–22 May	Kantar Public	1,200	42%	34%	4%	9%	4%	4%	2%	8%
19–21 May	ICM/The Guardian	2,004	47%	33%	4%	9%	4%	2%	1%	14%
19–20 May	Survation/Good Morning Britain	1,034	43%	34%	4%	8%	3%	2%	5%	9%
19–20 May	Survation/Mail on Sunday	1,017	46%	34%	3%	8%	4%	1%	3%	12%
18–19 May	YouGov/Sunday Times	1,925	44%	35%	3%	9%	5%	2%	1%	9%
17–18 May	ORB/Sunday Telegraph	1,551	46%	34%	7%	7%	4%	2%		12%
16–17 May	Opinium/Observer	2,003	46%	33%	5%	8%	5%	2%	1%	13%
16–17 May	YouGov/The Times	1,861	45%	32%	6%	8%	5%	2%	1%	13%
15–17 May	Ipsos MORI/Evening Standard	1,053	49%	34%	2%	7%	6%	3%		15%
12–15 May	Panelbase	1,026	47%	33%	5%	7%	5%	3%		14%
11–15 May	Kantar Public	1,201	47%	29%	6%	8%	4%	4%	2%	18%
12–14 May	ICM/The Guardian	2,030	48%	28%	6%	10%	4%	3%	1%	20%
3–14 May	GfK/Business Insider	1,952	48%	28%	5%	7%	6%	3%	2%	20%
12–13 May	Survation/Good Morning Britain	1,016	48%	30%	4%	8%	4%	2%	4%	18%
11–12 May	YouGov/Sunday Times	1,630	49%	31%	3%	9%	5%	2%	1%	18%
10–12 May	ComRes/Sunday Mirror, Independent on Sunday	2,007	48%	30%	5%	10%	4%	3%	1%	18%
9–12 May	Opinium/Observer	2,003	47%	32%	5%	8%	5%	2%	1%	15%
10–11 May	ORB/Sunday Telegraph	1,508	46%	32%	6%	8%	5%	4%		14%
9–10 May	YouGov/The Times	1,651	46%	30%	5%	11%	6%	2%	1%	16%
5–9 May	Panelbase	1,027	48%	31%	5%	8%	4%	2%	2%	17%
4–8 May	Kantar Public	1,201	44%	28%	8%	11%	4%	5%	1%	16%
5–7 May	ICM/The Guardian	2,038	49%	27%	6%	9%	4%	3%	1%	22%
5–6 May	Survation/Good Morning Britain	1,005	47%	30%	4%	7%	5%	3%	3%	17%
4–5 May	YouGov/Sunday Times	1,644	47%	28%	6%	11%	5%	2%	1%	19%
3–5 May	ICM/Sun on Sunday	2,020	46%	28%	8%	10%	4%	4%		18%
4 May	United Kingdom local and mayoral elections
3–4 May	ORB/Sunday Telegraph	1,550	46%	31%	8%	9%	3%	3%		15%
2–3 May	Opinium/Observer	2,005	46%	30%	7%	9%	4%	2%	1%	16%
2–3 May	YouGov/The Times	2,066	48%	29%	5%	10%	5%	2%	1%	19%
28 Apr–2 May	Panelbase	1,034	47%	30%	5%	10%	5%	2%	1%	17%
28 Apr–2 May	ICM/The Guardian	1,970	47%	28%	8%	8%	3%	4%	1%	19%
28 Apr–1 May	Qriously	1,240	44%	28%	8%	9%	3%	4%	4%	15%
27 Apr–2 May	Kantar Public	1,205	48%	24%	7%	11%	4%	4%	2%	24%
27–28 Apr	YouGov/Sunday Times	1,612	44%	31%	6%	11%	4%	2%	2%	13%
26–28 Apr	ICM/Sun on Sunday	2,012	47%	28%	8%	9%	4%	4%		19%
25–28 Apr	Opinium/Observer	2,007	47%	30%	7%	8%	5%	3%	1%	17%
26–27 Apr	ORB/Sunday Telegraph	2,093	42%	31%	8%	10%	4%	4%		11%
25–26 Apr	YouGov/The Times	1,590	45%	29%	7%	10%	5%	3%	1%	16%
21–25 Apr	Ipsos MORI/Evening Standard	1,004	49%	26%	4%	13%	4%	1%	4%	23%
21–24 Apr	ICM/The Guardian	2,024	48%	27%	7%	10%	4%	3%	1%	21%
20–24 Apr	Panelbase	1,026	49%	27%	5%	10%	5%	3%	1%	22%
20–24 Apr	Kantar Public	1,196	46%	24%	8%	11%	5%	4%	1%	22%
Pre-23 Apr	Norstat/Sunday Express	1,036	42%	26%	8%	10%		6%	8%	16%
21–22 Apr	Survation/Mail on Sunday	2,072	40%	29%	11%	11%	4%	2%	3%	11%
20–21 Apr	YouGov/Sunday Times	1,590	48%	25%	5%	12%	6%	3%	1%	23%
19–21 Apr	ICM/ITV	2,027	48%	26%	8%	10%	4%	3%	2%	22%
19–20 Apr	ORB/Daily Telegraph	1,860	44%	29%	10%	8%	5%	4%		15%
19–20 Apr	ComRes/Sunday Mirror	2,074	50%	25%	7%	11%	4%	3%	1%	25%
19–20 Apr	Opinium/Observer	2,003	45%	26%	9%	11%	4%	3%	1%	19%
2–20 Apr	YouGov	12,746	44%	25%	9%	12%	6%	3%	1%	19%
18–19 Apr	YouGov/The Times	1,727	48%	24%	7%	12%	6%	2%	1%	24%
18 Apr	ICM/The Guardian	1,000	46%	25%	8%	11%	4%	4%	1%	21%
18 Apr	Prime Minister Theresa May announces her intention to seek a general election to be held on 8 June 2017
14–17 Apr	ICM/The Guardian	2,052	44%	26%	11%	10%	4%	4%	1%	18%
12–13 Apr	YouGov/The Times	2,069	44%	23%	10%	12%	6%	4%	1%	21%
11–13 Apr	ComRes/Sunday Mirror, Independent on Sunday	2,026	46%	25%	9%	11%	4%	4%	2%	21%
11–13 Apr	Opinium/Observer	2,002	38%	29%	14%	7%	5%	5%	1%	9%
5–6 Apr	YouGov/The Times	1,651	42%	25%	11%	11%	8%	3%	1%	17%
31 Mar–2 Apr	ICM/The Guardian	2,005	43%	25%	11%	11%	5%	4%	2%	18%
26–27 Mar	YouGov/The Times	1,957	43%	25%	10%	11%	6%	3%	1%	18%
20–21 Mar	YouGov/The Times	1,627	41%	25%	12%	11%	6%	3%	2%	16%
17–19 Mar	ICM/The Guardian	2,012	45%	26%	10%	9%	4%	4%	1%	19%
15–17 Mar	ComRes/Sunday Mirror, Independent on Sunday	2,026	42%	25%	10%	12%	5%	4%	2%	17%
14–17 Mar	Opinium/Observer	2,007	41%	28%	13%	8%	6%	3%	1%	13%
1–15 Mar	GfK	1,938	41%	28%	12%	7%	5%	6%	1%	13%
13–14 Mar	YouGov/The Times	1,631	44%	27%	9%	10%	5%	4%	0%	17%
10–14 Mar	Ipsos MORI	1,032	43%	30%	6%	13%	4%	4%		13%
8–9 Mar	YouGov/The Times	1,598	44%	25%	11%	10%	6%	3%	1%	19%
3–5 Mar	ICM/The Guardian	1,787	44%	28%	11%	8%	4%	5%	1%	16%
27–28 Feb	YouGov/The Times	1,666	42%	25%	12%	11%	6%	4%	1%	17%
23 Feb	By-elections in Stoke-on-Trent Central and Copeland
21–22 Feb	YouGov/The Times	2,060	41%	25%	13%	11%	6%	3%	1%	16%
17–19 Feb	ICM/The Guardian	2,028	44%	26%	13%	8%	4%	4%	1%	18%
14–16 Feb	Opinium/Observer	2,004	40%	27%	14%	8%	5%	4%	2%	13%
10–14 Feb	Ipsos MORI/Evening Standard	1,014	40%	29%	9%	13%	5%	4%	0%	11%
12–13 Feb	YouGov/The Times	2,052	40%	24%	15%	11%	6%	4%	2%	16%
8–10 Feb	ComRes/Sunday Mirror, Independent on Sunday	1,218	41%	26%	11%	11%	5%	4%	2%	15%
5–6 Feb	YouGov/The Times	1,984	40%	24%	14%	11%	6%	4%	1%	16%
3–5 Feb	ICM/The Guardian	1,984	42%	27%	12%	10%	5%	4%	1%	15%
31 Jan–1 Feb	Opinium/Observer	2,005	37%	30%	14%	8%	5%	5%	2%	7%
30–31 Jan	YouGov/The Times	1,705	40%	26%	12%	11%	6%	4%	1%	14%
23–24 Jan	YouGov/The Times	1,643	40%	24%	14%	10%	6%	3%	0%	16%
20–22 Jan	ICM/The Guardian	2,052	42%	26%	13%	10%	4%	5%	1%	16%
17–18 Jan	YouGov/The Times	1,654	42%	25%	12%	11%	6%	3%	0%	17%
13–16 Jan	Ipsos MORI	1,132	43%	31%	6%	11%	4%	4%		12%
13 Jan	Survation/Mail on Sunday	1,177	38%	29%	13%	10%	4%	2%	4%	9%
10–12 Jan	Opinium/Observer	2,007	38%	30%	14%	7%	5%	4%	2%	8%
9–10 Jan	YouGov/The Times	1,660	39%	28%	13%	11%	6%	3%	1%	11%
6–8 Jan	ICM/The Guardian	2,000	42%	28%	12%	9%	4%	4%		14%
3–4 Jan	YouGov/The Times	1,740	39%	26%	14%	10%	6%	4%	1%	13%

2016

Date(s) conducted	Polling organisation/client	Sample size	Con	Lab	UKIP	Lib Dem	SNP	Green	Others	Lead
18–19 Dec	YouGov/The Times	1,595	39%	24%	14%	12%	6%	4%	1%	15%
13–16 Dec	Opinium/Observer	2,000	38%	31%	13%	6%	6%	4%	1%	7%
9–12 Dec	Ipsos MORI	1,003	40%	29%	9%	14%	4%	3%	1%	11%
9–11 Dec	ICM/The Guardian	2,049	41%	27%	14%	9%	4%	3%	1%	14%
8 Dec	Sleaford and North Hykeham by-election
4–5 Dec	YouGov/The Times	1,667	42%	25%	12%	11%	6%	4%	1%	17%
1 Dec	Richmond Park by-election
28–29 Nov	YouGov/The Times	1,624	39%	27%	14%	9%	6%	4%	1%	12%
28 Nov	Paul Nuttall is elected as the leader of UKIP
25–27 Nov	ICM/The Guardian	2,009	44%	28%	12%	7%	4%	4%	2%	16%
21–22 Nov	YouGov/The Times	1,693	41%	28%	12%	9%	6%	4%	0%	13%
18–20 Nov	ICM/The Guardian	2,031	42%	28%	11%	9%	4%	3%	2%	14%
15–18 Nov	Opinium	2,005	41%	29%	12%	7%	6%	3%	1%	12%
14–15 Nov	YouGov/The Times	1,717	42%	28%	11%	8%	7%	4%	1%	14%
11–14 Nov	Ipsos MORI	1,013	42%	33%	7%	10%	5%	3%	1%	9%
1–4 Nov	Opinium	2,001	40%	32%	13%	6%	6%	4%	–	8%
31 Oct–1 Nov	YouGov/The Times	1,608	41%	27%	11%	10%	6%	4%	1%	14%
28–30 Oct	ICM/The Guardian	2,040	43%	27%	12%	8%	4%	5%	1%	16%
24–25 Oct	YouGov/The Times	1,655	40%	27%	11%	11%	7%	3%	1%	13%
19–24 Oct	BMG	1,546	42%	28%	12%	8%	5%	4%	1%	14%
20 Oct	By-elections in Witney and Batley & Spen
19–20 Oct	YouGov/Election Data	1,608	42%	26%	12%	8%	6%	5%	1%	16%
14–17 Oct	Ipsos MORI	1,016	47%	29%	6%	7%	6%	4%	1%	18%
11–12 Oct	YouGov/The Times	1,669	42%	28%	11%	9%	6%	3%	0%	14%
7–9 Oct	ICM/The Guardian	2,017	43%	26%	11%	8%	4%	6%	2%	17%
28–29 Sep	YouGov/The Times	1,658	39%	30%	13%	8%	6%	3%	0%	9%
24 Sep	Jeremy Corbyn is re-elected as the Leader of the Labour Party and Leader of the Opposition
21–23 Sep	ICM/Sun on Sunday	2,015	41%	26%	14%	8%	5%	4%	2%	15%
20–23 Sep	BMG	2,026	39%	28%	13%	8%	5%	5%	2%	11%
19–21 Sep	YouGov/The Times	3,285	39%	30%	13%	8%	6%	3%	1%	9%
16 Sep	Diane James is elected the leader of UKIP
13–14 Sep	YouGov/The Times	1,732	38%	31%	13%	7%	6%	4%	–	7%
10–14 Sep	Ipsos MORI/Evening Standard	1,000	40%	34%	9%	6%	4%	5%	1%	6%
9–11 Sep	ICM/The Guardian	2,013	41%	27%	14%	8%	5%	4%	2%	14%
4–5 Sep	YouGov/The Times	1,616	40%	29%	13%	7%	7%	3%	–	11%
2 Sep	Caroline Lucas and Jonathan Bartley are elected joint leaders of the Green Party
30–31 Aug	YouGov/The Times	1,687	38%	30%	14%	7%	6%	4%	–	8%
26–28 Aug	ICM/The Guardian	2,040	41%	27%	13%	9%	4%	4%	2%	14%
22–23 Aug	YouGov/The Times	1,660	40%	29%	13%	8%	6%	3%	1%	11%
11–22 Aug	Lord Ashcroft Polls	8,011	40%	31%	13%	7%	5%	3%	1%	9%
16–17 Aug	YouGov/The Times	1,677	38%	30%	13%	9%	7%	4%	–	8%
13–15 Aug	Ipsos MORI/Evening Standard	1,017	45%	34%	6%	7%	4%	4%	1%	11%
12–15 Aug	ICM	2,010	40%	28%	14%	8%	4%	4%	2%	12%
8–9 Aug	YouGov/The Times	1,692	38%	31%	13%	8%	7%	4%	–	7%
5–8 Aug	TNS	1,199	39%	26%	11%	10%	4%	7%	2%	13%
1–2 Aug	YouGov/The Times	1,722	42%	28%	12%	8%	6%	3%	1%	14%
25–26 Jul	YouGov/The Times	1,680	40%	28%	13%	8%	7%	4%	1%	12%
22–24 Jul	ICM	2,012	43%	27%	13%	8%	4%	4%	1%	16%
19–22 Jul	Opinium/Observer	2,231	37%	31%	15%	6%	6%	4%	1%	6%
17–18 Jul	YouGov	1,891	40%	29%	12%	9%	7%	3%	1%	11%
13–15 Jul	ICM	2,027	39%	29%	14%	9%	4%	4%	2%	10%
13 Jul	Theresa May becomes the Prime Minister of the United Kingdom
9–11 Jul	Ipsos MORI	1,021	36%	35%	8%	11%	5%	4%	1%	1%
8–10 Jul	ICM	2,025	38%	30%	15%	8%	5%	4%	1%	8%
4–5 Jul	Survation/Constitutional Research Council	1,008	36%	32%	12%	9%	6%	–	7%	4%
1–3 Jul	ICM	1,979	37%	30%	15%	8%	5%	4%	2%	7%
28–30 Jun	Opinium	2,006	34%	29%	17%	7%	5%	4%	2%	5%
24–26 Jun	ICM/The Guardian	2,001	36%	32%	15%	7%	5%	5%	1%	4%
24–25 Jun	Survation/Mail on Sunday	1,033	32%	32%	16%	9%	4%	4%	2%	Tie
23 Jun	UK European Union membership referendum 52% of voters vote in favour of leaving EU; David Cameron announces he will resign as Prime Minister
20–22 Jun	Opinium	3,011	34%	30%	19%	6%	6%	4%	2%	4%
14–17 Jun	Opinium/Observer	2,006	34%	30%	18%	6%	6%	4%	1%	4%
16 Jun	Tooting by-election killing of MP Jo Cox, leading to a suspension of referendum campaigning until 19 June
15–16 Jun	ComRes/Sunday Mirror, Independent on Sunday	2,046	34%	29%	19%	8%	5%	4%	2%	5%
11–14 Jun	Ipsos MORI/Evening Standard	1,257	35%	34%	10%	9%	5%	4%	3%	1%
10–13 Jun	ICM/The Guardian	2,001	34%	30%	19%	8%	4%	4%	1%	4%
10–13 Jun	ICM/The Guardian	1,000	34%	33%	14%	9%	4%	5%	2%	1%
7–10 Jun	Opinium/Observer	2,009	35%	32%	18%	4%	5%	4%	1%	3%
31 May–3 Jun	Opinium/Observer	2,007	34%	30%	18%	6%	6%	4%	2%	4%
27–29 May	ICM/The Guardian	2,052	36%	31%	17%	7%	4%	4%	2%	5%
27–29 May	ICM/The Guardian	1,004	36%	32%	15%	7%	4%	3%	2%	4%
17–19 May	Opinium/Observer	2,008	35%	30%	18%	5%	6%	5%	2%	5%
14–16 May	Ipsos MORI/Evening Standard	1,002	36%	34%	10%	8%	5%	5%	2%	2%
13–15 May	ICM/The Guardian	1,002	36%	34%	13%	7%	4%	4%	2%	2%
13–15 May	ICM/The Guardian	2,048	34%	32%	17%	7%	5%	4%	1%	2%
11–12 May	ComRes/Sunday Mirror, Independent on Sunday	2,043	36%	30%	17%	8%	5%	4%	–	6%
5 May	2016 United Kingdom local elections including the Ogmore and Sheffield Brightside and Hillsborough by-elections
26–29 Apr	Opinium/Observer	2,005	38%	30%	15%	5%	5%	5%	2%	8%
25–26 Apr	YouGov/The Times		1,650	30%	33%	20%	6%	8%	3%	–	3%
22–26 Apr	BMG Research		1,375	33%	32%	18%	6%	5%	4%	2%	1%
16–18 Apr	Ipsos MORI/Evening Standard	1,026	38%	35%	11%	6%	6%	3%	1%	3%
15–17 Apr	ICM/The Guardian	1,003	38%	33%	13%	7%	5%	3%	1%	5%
15–17 Apr	ICM/The Guardian	2,008	36%	31%	16%	7%	4%	4%	2%	5%
13–14 Apr	ComRes/Sunday Mirror, Independent on Sunday		2,036	35%	30%	16%	8%	5%	4%	1%	5%
11–12 Apr	YouGov/The Times		1,639	31%	34%	17%	8%	7%	3%	–	3%
29 Mar–1 Apr	Opinium/Observer		1,966	33%	32%	17%	5%	6%	4%	2%	1%
24–29 Mar	BMG Research		1,298	36%	31%	16%	7%	5%	5%	2%	5%
19–22 Mar	Ipsos MORI		1,023	36%	34%	11%	10%	5%	3%	2%	2%
18–20 Mar	ComRes/Daily Mail		1,002	37%	35%	9%	7%	5%	4%	2%	2%
16–17 Mar	YouGov/The Times		1,691	33%	34%	16%	6%	6%	3%	2%	1%
11–13 Mar	ICM/The Guardian		1,001	36%	36%	11%	8%	3%	3%	1%	Tie
9–10 Mar	ComRes/Sunday Mirror, Independent on Sunday	2,059	38%	29%	16%	7%	4%	4%	1%	9%
21–23 Feb	YouGov/The Times	3,482	37%	30%	16%	8%	6%	3%	–	7%
17–23 Feb	BMG Research	1,268	38%	30%	16%	5%	5%	5%	2%	8%
19–22 Feb	ComRes/Daily Mail	1,000	38%	31%	12%	8%	4%	3%	3%	7%
13–16 Feb	Ipsos MORI	1,001	39%	33%	12%	6%	6%	3%	2%	6%
12–14 Feb	ICM/The Guardian	1,004	39%	32%	11%	7%	4%	4%	3%	7%
10–12 Feb	ComRes/Sunday Mirror, Independent on Sunday	2,018	41%	27%	15%	9%	5%	3%	1%	14%
3–4 Feb	YouGov/The Times	1,675	39%	29%	18%	6%	4%	3%	1%	10%
27–28 Jan	YouGov	1,735	39%	30%	17%	6%	4%	3%	1%	9%
23–25 Jan	Ipsos MORI	1,027	40%	31%	11%	7%	5%	4%	1%	9%
22–24 Jan	ComRes/Daily Mail	1,006	37%	32%	12%	6%	4%	4%	4%	5%
15–17 Jan	ICM/The Guardian	1,001	40%	35%	10%	6%	4%	3%	2%	5%
15–16 Jan	Survation/Mail on Sunday	1,017	37%	30%	16%	7%	5%	3%	3%	7%
13–15 Jan	ComRes/Sunday Mirror, Independent on Sunday	2,004	40%	29%	16%	7%	4%	3%	1%	11%
8–14 Jan	Panelbase/Sunday Times	2,087	39%	31%	14%	6%	5%	5%	–	8%

2015

Date(s) conducted	Polling organisation/client	Sample size	Con	Lab	UKIP	Lib Dem	SNP	Green	Others	Lead
18–20 Dec	ICM/The Guardian	1,003	39%	34%	10%	7%	4%	3%	3%	5%
17–18 Dec	YouGov/The Times	1,598	39%	29%	17%	6%	5%	3%	1%	10%
15–18 Dec	Opinium/Observer	1,936	38%	30%	16%	5%	6%	5%	2%	8%
12–14 Dec	Ipsos MORI/Evening Standard	1,040	38%	31%	9%	9%	5%	6%	2%	7%
11–13 Dec	ComRes/Daily Mail	1,001	37%	33%	11%	7%	4%	5%	2%	4%
9–11 Dec	ComRes/Independent on Sunday, Sunday Mirror	2,049	40%	29%	16%	7%	4%	3%	1%	11%
3 Dec	Oldham West and Royton by-election
30 Nov–1 Dec	YouGov/The Times	1,657	41%	30%	16%	6%	4%	3%	1%	11%
20–24 Nov	YouGov	4,317	38%	29%	17%	6%	5%	3%	1%	9%
20–22 Nov	ComRes/Daily Mail	1,000	40%	29%	11%	8%	4%	3%	4%	11%
18–20 Nov	ComRes/Independent on Sunday, Sunday Mirror	2,067	42%	27%	15%	7%	5%	3%	1%	15%
16–17 Nov	Survation/Leave.EU	1,546	37%	30%	16%	6%	5%	3%	3%	7%
14–17 Nov	Ipsos MORI/Evening Standard	1,021	41%	34%	7%	7%	6%	4%	-	7%
11–17 Nov	BMG Research	1,334	37%	30%	15%	7%	4%	4%	2%	7%
13–15 Nov	ICM/The Guardian	1,006	39%	33%	12%	7%	5%	3%	1%	6%
9–11 Nov	Survation/Leave.EU	2,007	36%	30%	15%	7%	5%	3%	3%	6%
22–27 Oct	BMG Research	1,467	37%	31%	15%	6%	4%	5%	2%	6%
23–25 Oct	ComRes/Daily Mail	1,002	38%	33%	10%	8%	3%	3%	4%	5%
17–19 Oct	Ipsos MORI/Evening Standard	1,021	36%	32%	12%	10%	5%	3%	2%	4%
13–16 Oct	Opinium	1,934	37%	32%	15%	5%	6%	4%	2%	5%
14–15 Oct	ComRes/Independent on Sunday, Sunday Mirror	2,051	42%	29%	13%	7%	5%	3%	1%	13%
9–11 Oct	ICM/The Guardian	1,002	38%	34%	11%	7%	5%	3%	3%	4%
29–30 Sep	YouGov/The Sun	2,064	37%	31%	17%	7%	5%	2%	1%	6%
26–28 Sep	ComRes/Daily Mail	1,009	39%	30%	12%	9%	4%	4%	3%	9%
21–22 Sep	Survation/Huffington Post	1,008	37%	32%	13%	9%	5%	3%	1%	5%
19–22 Sep	Ipsos MORI/Evening Standard	1,255	39%	34%	7%	9%	5%	4%	1%	5%
17–18 Sep	YouGov/Sunday Times	1,601	39%	31%	16%	6%	5%	3%	1%	8%
15–18 Sep	Opinium	1,942	37%	32%	14%	6%	5%	4%	1%	5%
16–17 Sep	ComRes/Independent on Sunday, Sunday Mirror	2,015	42%	30%	13%	7%	5%	3%	1%	12%
11–13 Sep	ICM/The Guardian	1,006	38%	32%	13%	8%	5%	3%	2%	6%
12 Sep	Jeremy Corbyn is elected leader of the Labour Party and appointed Leader of the Opposition
3–4 Sep	Survation/Mail on Sunday	1,004	38%	32%	13%	6%	5%	4%	2%	6%
21–23 Aug	ComRes/Daily Mail	1,001	42%	28%	9%	8%	5%	6%	3%	14%
12–13 Aug	ComRes/Independent on Sunday, Sunday Mirror	2,035	40%	29%	13%	8%	5%	4%	1%	11%
12–13 Aug	Survation/TSSA	1,007	38%	33%	15%	6%	5%	3%	1%	5%
7–9 Aug	ICM/The Guardian	1,000	40%	31%	10%	7%	5%	4%	2%	9%
24–26 Jul	ComRes/Daily Mail	1,001	40%	28%	10%	7%	5%	5%	4%	12%
18–20 Jul	Ipsos MORI/Evening Standard	1,026	37%	31%	9%	10%	5%	8%	1%	6%
16 Jul	Tim Farron is elected leader of the Liberal Democrats
10–12 Jul	ICM/The Guardian	1,005	38%	34%	13%	6%	4%	4%	1%	4%
26–28 Jun	ComRes/Daily Mail	1,002	39%	27%	11%	9%	5%	6%	3%	12%
14–16 Jun	Ipsos MORI/Evening Standard	1,005	39%	30%	8%	9%	5%	6%	2%	9%
12–14 Jun	ICM/The Guardian	1,004	37%	31%	13%	8%	5%	5%	1%	6%
29–31 May	ComRes/Daily Mail	1,000	41%	29%	10%	8%	5%	5%	3%	12%
25–26 May	YouGov/The Sun	1,709	41%	30%	13%	7%	4%	4%	1%	11%
8–9 May	Survation/Mail on Sunday	1,027	40%	31%	12%	6%	5%	3%	2%	9%
7 May	General Election results (GB only)^[4] ^[5]	–	37.8%	31.2%	12.9%	8.1%	4.9%	3.8%	1.4%	6.6%

YouGov model

During the election campaign, YouGov created a Multilevel Regression and Post-stratification (MRP) model based on poll data. As set out by YouGov, the model "works by modelling every constituency and key voter types in Britain based on analysis of key demographics as well as past voting behaviour", with new interviews to registered voters conducted every day.^[6]

Date(s) conducted	Polling organisation/client	Sample size	Con	Lab	UKIP	Lib Dem	SNP	Green	Others	Lead
8 June	General Election results (GB only)	–	43.5%	41.0%	1.9%	7.6%	3.1%	1.7%	1.2%	2.5%
31 May–6 Jun	YouGov	55,707	42%	38%	3%	9%	4%	2%	1%	4%
30 May–5 Jun	YouGov	53,241	42%	38%	4%	9%	4%	2%	1%	4%
29 May–4 Jun	YouGov	53,609	42%	38%	3%	9%	4%	2%	2%	4%
27 May–2 Jun	YouGov	51,945	42%	38%	3%	9%	4%	2%	2%	4%
26 May–1 Jun	YouGov	53,000	42%	38%	3%	9%	4%	2%	1%	4%
25–31 May	YouGov	53,611	42%	38%	3%	9%	4%	2%	2%	4%
24–30 May	YouGov	53,464	41%	38%	4%	9%	4%	2%	2%	3%
23–29 May	YouGov	~50,000	42%	38%	4%	9%	7%			4%

UK-wide seat projections

The UK's first-past-the-post electoral system means that national shares of the vote do not give an exact indicator of how the various parties will be represented in Parliament. Different commentators and pollsters provided a number of predictions, based on polls and other data, as to how the parties would be represented in Parliament:

Parties		2015 election result	Election Forecast^[7] as of 7 June 2017	Electoral Calculus^[8] as of 7 June 2017	Lord Ashcroft^[9] as of 6 June 2017^[10]	Elections Etc.^[11] as of 2 June 2017	New Statesman^[12] as of 6 June 2017	YouGov^[13] as of 7 June 2017	Britain Elects^[14] as of 7 June 2017	Scenari Politici.com^[15] as of 7 June 2017	Forecast UK^[16] as of 8 June 2017	Spreadex^[17] as of 7 June 2017	BBC/ITV/Sky exit poll 8 June 2017	2017 election result
	Conservatives	330	371	361	357	360	339	302	353	365	344-351	365-371	314	318
	Labour Party	232	199	215	222	210	224	269	219	208	221-230	198-204	266	262
	SNP	56	50	48	45	48	57	44	46	49	44-52	45.5-47.5	34	35
	Liberal Democrats	8	7	4	4	9	8	12	9	6	5-7	10.5-12.5	14	12
	Plaid Cymru	3	2	3	1	3	—	2	3	3	2-4	—	3	4
	Green Party	1	1	1	0	1	—	1	1	1	0-2	0.8-1.4	1	1
	UKIP	1	1	0	0	0	—	0	0	0	0	0.1-0.5	0	0
	Others	19	1	18	19	—	—	20	19	18	19	—	18	18
Overall result		Conservative majority of 10	Conservative majority of 92	Conservative majority of 72	Conservative majority of 64	Conservative majority of 70	Conservative majority of 28	Hung Parliament (Con 24 seats short)	Conservative majority of 56	Conservative majority of 84	Conservative majority of 46	Conservative majority of 82	Hung Parliament (Con 12 seats short)	Hung Parliament (Con 8 seats short)

Lord Ashcroft Polls announced an estimate for the election result. He updated it at intervals on his website.^{[18] [19]}

Electoral Calculus maintained a running projection of seats according to latest polls on its website based on universal changes from the previous general election results according to opinion poll averages. It also maintained a seat-by-seat projection for Scotland.

Election Forecast also maintained a projection of seats based on current opinion poll averages on their website.

Elections Etc. issued regular forecasts based on current opinion poll averages, betting markets, expert predictions and other sources on their website.

YouGov issued daily seat estimates using their aggregated statistical election model.

Britain Elects maintained a 'nowcast' of seats based on historical data as well as national and regional polling.

ScenariPolitici.com maintained a projection of seats based on current opinion poll averages on their website.^[15]

Spreadex maintained Party Seats spread bets throughout the election, with prices updated daily.^[20]

Sub-national polling

Scotland

Date(s) conducted	Polling organisation/client	Sample size	SNP	Lab	Con	Lib Dem	UKIP	Green	Others	Lead
8 June	General Election results^[21]	2,649,695	36.9%	27.1%	28.6%	6.8%	0.2%	0.2%	0.2%	8.3%
7 Jun 2017	Survation/The Daily Record	1,001	39%	29%	26%	6%				10%
2–7 Jun 2017	Panelbase	1,106	41%	22%	30%	5%	<1%	2%	<1%	11%
1–5 Jun 2017	YouGov/The Times	1,093	41%	25%	26%	6%		1%	2%	15%
31 May–2 Jun 2017	Survation/The Sunday Post	1,024	40%	25%	27%	6%	2%			13%
26–31 May 2017	Panelbase/The Sunday Times	1,021	42%	20%	30%	5%	2%	1%	–	12%
22–27 May 2017	Ipsos-Mori/STV	1,016	43%	25%	25%	5%	2%			18%
15–18 May 2017	YouGov/The Times	1,032	42%	19%	29%	6%	1%	2%	1%	13%
12–18 May 2017	BMG/The Herald	over 1,000	43%	18%	30%	5%	4%			13%
4 May 2017	2017 Scottish local elections
24–27 Apr 2017	YouGov/The Times	1,017	41%	18%	28%	7%	2%	3%	1%	13%
18–21 Apr 2017	Panelbase/The Sunday Times	1,029	44%	13%	33%	5%	2%	2%	1%	11%
18–21 Apr 2017	Survation/Sunday Post	1,018	43%	18%	28%	9%	3%			15%
18 Apr 2017	Prime Minister Theresa May announces her intention to seek a general election to be held on 8 June 2017
17 Mar 2017	Panelbase/The Sunday Times	1,008	47%	14%	28%	4%	3%	3%	<1%	19%
20–26 Jan 2017	Panelbase/The Sunday Times	1,020	47%	15%	27%	4%	3%	3%	<1%	20%
28 Sep–4 Oct 2016	BMG	1,010	49%	17%	20%	8%	2%	3%	-	29%
9–15 Sep 2016	Panelbase/The Sunday Times	1,024	47%	16%	24%	5%	4%	3%	-	23%
13 Jul 2016	Theresa May becomes the Prime Minister of the United Kingdom
23 Jun	UK European Union membership referendum
5 May 2016	Scottish Parliament election
7–10 Sep 2015	Survation/Scottish Daily Mail	1,010	52%	21%	16%	6%	2%	3%	-	31%
15 Aug 2015	Kezia Dugdale is elected leader of Scottish Labour
3–7 Jul 2015	Survation/Scottish Daily Mail	1,084	51%	21%	17%	7%	2%	2%	-	30%
7 May 2015	General Election results	2,910,465	50.0%	24.3%	14.9%	7.5%	1.6%	1.3%	0.3%	25.7%

Wales

Date(s) conducted	Polling organisation/client	Sample size	Lab	Con	UKIP	Plaid	Lib Dem	Green	Others	Lead
8 June	General Election results^[22]	–	48.9%	33.6%	2.0%	10.4%	4.5%	0.3%	0.2%	15.3%
5–7 June 2017	YouGov/ITV	1,074	46%	34%	5%	9%	5%	1%		12%
29–31 May 2017	YouGov/ITV	1,014	46%	35%	5%	8%	5%	0%	0%	11%
18–21 May 2017	YouGov/ITV	1,025	44%	34%	5%	9%	6%	1%	1%	10%
5–7 May 2017	YouGov/ITV	1,018	35%	41%	4%	11%	7%	1%	1%	6%
4 May 2017	2017 Welsh local elections
19–21 April 2017	YouGov/Welsh Political Barometer	1,029	30%	40%	6%	13%	8%	2%	1%	10%
18 Apr	Prime Minister Theresa May announces her intention to seek a general election to be held on 8 June 2017
3–6 Jan 2017	YouGov/Welsh Political Barometer	1,034	33%	28%	13%	13%	9%	2%	0	5%
18–21 Sep 2016	YouGov/Welsh Political Barometer	1,001	35%	29%	14%	13%	7%	2%	0	6%
13 Jul 2016	Theresa May becomes the Prime Minister of the United Kingdom
30 Jun–4 Jul 2016	YouGov/Welsh Political Barometer	1,010	34%	23%	16%	16%	8%	1%	2%	11%
5 May 2016	Welsh Assembly election and Ogmore by-election
19–22 Apr 2016	YouGov/Welsh Political Barometer	1,001	37%	23%	17%	13%	7%	2%	1%	14%
7–11 Apr 2016	YouGov/ITV Wales	1,011	38%	22%	18%	13%	6%	2%	1%	16%
7–18 Mar 2016	Welsh Election Study	3,272	36%	25%	16%	14%	6%		3%^[23]	11%
9–11 Feb 2016	YouGov/Welsh Political Barometer	1,024	37%	27%	18%	13%	4%	1%	-	10%
30 Nov–4 Dec 2015	YouGov/Welsh Political Barometer	1,005	37%	27%	17%	12%	4%	2%	-	10%
21–24 Sep 2015	YouGov/Welsh Political Barometer	1,151	42%	26%	16%	10%	5%	2%	-	16%
24–26 Jun 2015	YouGov/Welsh Political Barometer	1,151	37%	28%	15%	12%	4%	3%	1%	9%
7 May 2015	General Election results	–	36.9%	27.2%	13.6%	12.1%	6.5%	2.6%	1.0%	9.7%

Northern Ireland

Date(s) conducted	Polling organisation/client	Sample size	DUP	SF	UUP	SDLP	Alliance	TUV	Green	Others	Lead
8 June	General Election results^[24]	–	36.0%	29.4%	10.3%	11.7%	7.9%	0.4%	0.9%	3.3%	6.6%
1–3 June 2017	Lucid Talk	3,419	28.9%	28.1%	15.4%	13.8%	9.9%	0.1%	0.6%	3.2%	0.8%
17–18 May 2017	Lucid Talk	3,341	28.8%	27.9%	15.7%	13.7%	9.8%	0.1%	0.7%	3.3%	0.9%
27–29 April 2017	Lucid Talk	3,187	29.4%	27.7%	14.8%	12.4%	10.2%	0.6%	1.8%	3.1%	1.7%
18 Apr 2017	Prime Minister Theresa May announces her intention to seek a general election to be held on 8 June 2017
2 Mar 2017	2017 Northern Ireland Assembly election
5 May 2016	2016 Northern Ireland Assembly election
7 May 2015	General Election Results	–	25.7%	24.5%	16.0%	13.9%	8.6%	2.3%	1.0%	8.2%	1.2%

Regional polling in England

North East England

Date(s) conducted	Polling organisation/client	Sample size	Lab	Con	UKIP	Lib Dem	Green	Others	Lead
8 June 2017	2017 Election	–	55.5%	34.4%	3.9%	4.6%	1.3%	0.5%	21.1%
24 Apr–5 May 2017	YouGov	639	42%	40%	8%	6%	2%	0%	2%
7 May 2015	2015 Election	–	46.9%	25.3%	16.7%	6.5%	3.6%	0.9%	21.6%

North West England

Date(s) conducted	Polling organisation/client	Sample size	Lab	Con	UKIP	Lib Dem	Green	Others	Lead
8 June 2017	2017 Election	–	54.9%	36.2%	1.9%	5.4%	1.1%	0.5%	18.7%
24 Apr–5 May 2017	YouGov	1,537	42%	42%	6%	8%	2%	0%	Tie
23 Feb 2017	Copeland by-election
3 Dec 2015	Oldham West and Royton by-election
7 May 2015	2015 Election	–	44.6%	31.2%	13.6%	6.5%	3.2%	0.7%	13.4%

Yorkshire and the Humber

Date(s) conducted	Polling organisation/client	Sample size	Lab	Con	UKIP	Lib Dem	Green	Others	Lead
8 June 2017	2017 Election	–	49.0%	40.5%	2.6%	5.0%	1.3%	1.7%	8.5%
24 Apr–5 May 2017	YouGov	1,293	38%	43%	7%	9%	2%	0%	5%
20 Oct 2016	Batley and Spen by-election
5 May 2016	Sheffield Brightside and Hillsborough by-election
7 May 2015	2015 Election	–	39.1%	32.6%	16.0%	7.1%	3.5%	1.6%	6.5%

East Midlands

Date(s) conducted	Polling organisation/client	Sample size	Con	Lab	UKIP	Lib Dem	Green	Others	Lead
8 June 2017	2017 Election	–	50.7%	40.5%	2.4%	4.3%	1.4%	0.6%	10.2%
24 Apr–5 May 2017	YouGov	1,164	54%	28%	7%	8%	2%	0%	26%
8 Dec 2016	Sleaford and North Hykeham by-election
7 May 2015	2015 Election	–	43.5%	31.6%	15.8%	5.6%	3.0%	0.6%	11.9%

West Midlands

Date(s) conducted	Polling organisation/client	Sample size	Con	Lab	UKIP	Lib Dem	Green	Others	Lead
8 June 2017	2017 Election	–	49.0%	42.5%	1.8%	4.4%	1.7%	0.6%	6.5%
24 Apr–5 May 2017	YouGov	1,211	51%	28%	9%	9%	2%	0%	23%
23 Feb 2017	Stoke-on-Trent Central by-election
7 May 2015	2015 Election	–	41.8%	32.9%	15.7%	5.5%	3.3%	0.8%	8.9%

East of England

Date(s) conducted	Polling organisation/client	Sample size	Con	Lab	UKIP	Lib Dem	Green	Others	Lead
8 June 2017	2017 Election	–	54.6%	32.7%	2.5%	7.9%	1.9%	0.3%	21.9%
24 Apr–5 May 2017	YouGov	1,339	56%	19%	9%	12%	2%	1%	37%
7 May 2015	2015 Election	–	49.0%	22.0%	16.2%	8.2%	3.9%	0.5%	27.0%

London

Date(s) conducted	Polling organisation/client	Sample size	Lab	Con	UKIP	Lib Dem	Green	Others	Lead
8 June 2017	2017 Election	–	54.5%	33.2%	1.3%	8.8%	1.8%	0.5%	21.3%
26–31 May 2017	YouGov	1,000	50%	33%	3%	11%	2%	1%	17%
19–23 May 2017	YouGov	1,006	50%	34%	2%	11%	2%	1%	16%
22 Apr–3 May 2017	YouGov	1,040	41%	36%	6%	14%	3%	1%	5%
18 Apr 2017	Prime Minister Theresa May announces her intention to seek a general election to be held on 8 June 2017
24–28 Mar 2017	YouGov	1,042	37%	34%	9%	14%	5%	1%	3%
1 Dec 2016	Richmond Park by-election
16 Jun 2016	Tooting by-election
15–19 Apr 2016	YouGov/LBC	1,017	46%	30%	13%	7%	4%	1%	16%
4–6 Jan 2016	YouGov/LBC	1,156	44%	37%	11%	4%	2%	2%	7%
8 Jun–12 Aug 2015	YouGov/LBC	3,436	42%	38%	9%	5%	4%	1%	4%
7 May 2015	2015 Election	–	43.7%	34.9%	8.1%	7.7%	4.9%	0.8%	8.8%

South East

Date(s) conducted	Polling organisation/client	Sample size	Con	Lab	UKIP	Lib Dem	Green	Others	Lead
8 June 2017	2017 Election	4,635,741	54.6%	28.6%	2.3%	10.5%	3.1%	1.0%	26.0%
24 Apr–5 May 2017	YouGov	2,062	56%	19%	6%	15%	3%	1%	37%
20 Oct 2016	Witney by-election
7 May 2015	2015 Election	4,394,360	50.8%	18.3%	14.7%	9.4%	5.2%	1.5%	32.5%

South West

Date(s) conducted	Polling organisation/client	Sample size	Con	Lab	Lib Dem	UKIP	Green	Others	Lead
8 June 2017	2017 Election	–	51.4%	29.1%	15.0%	1.1%	2.3%	1.2%	22.3%
24 Apr–5 May 2017	YouGov	1,378	52%	22%	16%	6%	3%	1%	30%
7 May 2015	2015 Election	–	46.5%	17.7%	15.1%	13.6%	5.9%	1.2%	28.8%

Polls of individual constituencies

Date(s) conducted	Polling organisation/client	Sample size	Con	Lab	Lib Dem	Others	Lead
8 Jun 2017		N/A	41.5%	45.9%	8.0%	4.6%	4.4%
9–10 May 2017	Survation/Chris Coghlan	503	46%	38%	13%	5%	8%
7 May 2015		N/A	52.4%	36.8%	4.4%	6.4%	15.6%

Date(s) conducted	Polling organisation/client	Sample size	Green	Lab	Con	UKIP	Lib Dem†	Others	Lead
8 Jun 2017		N/A	52.3%	26.8%	19.2%	1.1%	—	0.7%	25.5%
27 Apr-1 May 2017	ICM Unlimited	1,001	47%	23%	25%	3%	2%	0%	22%
7 May 2015		–	41.8%	27.3%	22.8%	5.0%	2.8%	0.4%	14.6%

†The Liberal Democrats did not field a candidate in Brighton Pavilion.

Date(s) conducted	Polling organisation/client	Sample size	Lab	SNP	Con	Green†	Lib Dem	Others†	Lead
8 Jun 2017		N/A	54.9%	22.5%	19.7%	—	2.9%	—	32.4%
3–4 April 2017	Survation/Stop Brexit Alliance	530	40%	30%	20%	7%	3%	1%	10%
7 May 2015		–	39.1%	33.8%	17.5%	4.2%	3.7%	1.6%	5.3%

†There was neither a Scottish Green nor any "other" candidates fielded Edinburgh South.

Date(s) conducted	Polling organisation/client	Sample size	Con	Lab	Lib Dem	Green	UKIP	Others	Lead
8 Jun 2017		N/A	42.2%	42.2%	12.2%	2.0%	—	1.4%	0.05%
25–27 Apr 2017	Survation/Stop Brexit Alliance	522	46%	29%	17%	7%	1%	0%	17%
7 May 2015		–	52.3%	31.1%	5.6%	5.1%	4.5%	1.5%	21.2%

Date(s) conducted	Polling organisation/client	Sample size	Con	Lab	UKIP†	Lib Dem	Others	Lead
8 Jun 2017		N/A	58.6%	28.5%	—	9.0%	4.0%	30.1%
22 Mar 2017	Survation/38 Degrees	507	58%	17%	9%	12%	4%	41%
7 May 2015		–	58.6%	18.3%	10.8%	8.5%	3.8%	40.3%

†UKIP did not field a candidate in Tatton.

Preferred prime minister polling

Some opinion pollsters have asked voters which party leader they would prefer as Prime Minister – Theresa May (Conservative Party) or Jeremy Corbyn (Labour Party). The questions differ slightly from pollster to pollster:

• Opinium, Lord Ashcroft and YouGov: "Which of the following do you think would make the best Prime Minister?"
• Kantar Public: "If you had to choose between Theresa May and Jeremy Corbyn, who do you think would make the best leader for Britain?"
• Ipsos MORI: "Who do you think would make the most capable Prime Minister, the Conservative’s Theresa May, or Labour’s Jeremy Corbyn?"
• Survation: "Which of the following party leaders do you think would make the best Prime Minister?"
• ComRes: "For each of these pairs of statements, which one comes closest to your view? - Jeremy Corbyn would make a better Prime Minister than Theresa May/Theresa May would make a better Prime Minister than Jeremy Corbyn"
• ICM: "Putting aside which party you support, and only thinking about your impression of them as leaders, which one of the following do you think would make the best Prime Minister for Britain?"

May vs Corbyn

2017

Date(s) conducted	Polling organisation/client	Sample size	Theresa May	Jeremy Corbyn	None of these	Not sure	Lead
5-7 Jun	ComRes	2,051	48%	39%		14%	9%
4–6 Jun	Opinium	3,002	42%	29%	19%	10%	13%
2–3 Jun	Survation	1,103	50%	36%		15%	14%
31 May–2 Jun	ComRes	2,038	49%	34%		17%	15%
30 May–1 Jun	Ipsos MORI	1,046	50%	35%	6%	8%	15%
30–31 May	Opinium	2,006	42%	26%	21%	12%	16%
30–31 May	YouGov/The Times	1,875	43%	30%		27%	13%
25–30 May	Kantar Public	1,199	38%	23%	23%	15%	15%
26–27 May	Survation/Good Morning Britain	1,009	53%	30%		17%	23%
24–26 May	ICM/The Sun on Sunday	2,044	48%	27%		25%	21%
24–26 May	ComRes	2,024	51%	30%		19%	21%
24–25 May	YouGov/The Times	2,052	45%	28%		27%	17%
23–24 May	Opinium	2,002	43%	26%	21%	11%	17%
18–22 May	Kantar Public	1,200	38%	24%	23%	14%	14%
16–17 May	YouGov/The Times	1,861	46%	23%		31%	23%
16–17 May	Opinium	2,003	45%	22%	21%	12%	23%
15–17 May	Ipsos MORI	1,053	56%	29%	8%	6%	27%
11–15 May	Kantar Public	1,201	41%	18%	22%	19%	23%
12–13 May	Survation	1,016	58%	24%		19%	34%
9–12 May	Opinium	2,003	45%	19%	24%	12%	26%
9-10 May	YouGov/The Times	1,651	49%	21%		30%	28%
4–8 May	Kantar Public	1,201	40%	17%	24%	19%	23%
5–6 May	Survation	1,005	60%	21%		19%	39%
2-3 May	Opinium	2,005	46%	18%	25%	11%	28%
2-3 May	YouGov/The Times	2,066	49%	21%		29%	28%
20–24 Apr	Kantar Public	2,003	43%	17%	20%	20%	26%
25–28 Apr	Opinium/The Observer	2,007	44%	19%	25%	12%	25%
25–26 Apr	YouGov/The Times	1,590	48%	18%		33%	30%
21–25 Apr	Ipsos MORI^[25]	1,004	61%	23%	6%	7%^[26]	38%
20–24 Apr	Kantar Public ^[27]	2,003	44%	18%	23%	16%	26%
19–20 Apr	Opinium/Observer	2,003	49%	14%	26%	11%	35%
18–19 Apr	YouGov/The Times	1,727	54%	15%		31%	39%
18 Apr	Prime Minister Theresa May announces her intention to seek a general election
12–13 Apr	YouGov/The Times	2,069	50%	14%		36%	36%
11–13 Apr	Opinium/Observer	1,651	47%	14%	28%	11%	33%
5–6 Apr	YouGov/The Times	1,651	49%	16%		35%	33%
21–28 Mar	Lord Ashcroft Polls	10,153	55%	18%		27%	37%
26–27 Mar	YouGov/The Times	1,957	51%	13%		36%	38%
20–21 Mar	YouGov/The Times	1,627	47%	14%		39%	33%
14–17 Mar	Opinium/Observer	2,007	45%	14%	29%	12%	31%
13–14 Mar	YouGov/The Times	1,631	48%	14%		38%	34%
27–28 Feb	YouGov/The Times	1,666	49%	15%		36%	34%
21–22 Feb	YouGov/The Times	2,060	49%	15%		36%	34%
14–16 Feb	Opinium/Observer	2,004	46%	13%	29%	12%	33%
12–13 Feb	YouGov/The Times	2,052	49%	15%		36%	34%
31 Jan–1 Feb	Opinium/Observer	2,005	43%	14%	29%	14%	29%
30–31 Jan	YouGov/The Times	1,705	48%	16%		36%	32%
23–24 Jan	YouGov/The Times	1,643	47%	15%		38%	32%
10–12 Jan	Opinium/Observer	2,007	40%	16%	28%	15%	24%
9–10 Jan	YouGov/The Times	1,660	45%	17%		38%	28%
3–4 Jan	YouGov/The Times	1,740	47%	14%		39%	33%

2016

Date(s) conducted	Polling organisation/client	Sample size	Theresa May	Jeremy Corbyn	None of these	Not sure	Lead
18–19 Dec	YouGov/The Times	1,595	44%	16%		41%	28%
13–16 Dec	Opinium/The Observer	2,000	42%	16%	28%	13%	26%
4–5 Dec	YouGov/The Times	1,667	49%	16%		35%	33%
28–29 Nov	YouGov/The Times	1,624	45%	18%		37%	27%
15–18 Nov	Opinium/The Observer	2,005	45%	17%	25%	13%	28%
14–15 Nov	YouGov/The Times	1,717	48%	18%		34%	30%
1–4 Nov	Opinium/The Observer	2,001	45%	16%	25%	13%	29%
31 Oct-1 Nov	YouGov/The Times	1,655	47%	17%		36%	30%
24–25 Oct	YouGov/The Times	1,655	48%	16%		36%	32%
11–12 Oct	YouGov/The Times	1,669	51%	18%		31%	33%
13–14 Sep	YouGov/The Times	1,732	50%	18%		33%	32%
30–31 Aug	YouGov/The Times	1,687	52%	21%		27%	31%
22–23 Aug	YouGov/The Times	1,660	50%	19%		30%	31%
16–17 Aug	YouGov/The Times	1,677	51%	19%		30%	32%
8–9 Aug	YouGov/The Times	1,692	52%	18%		29%	34%
1–2 Aug	YouGov/The Times	1,722	52%	18%		30%	34%
25–26 Jul	YouGov/The Times	1,680	52%	18%		30%	34%
13 Jul	Theresa May becomes the Prime Minister of the United Kingdom
23 Jun	The UK votes to leave the EU David Cameron announces he will resign as Prime Minister
5 May	UK elections, 2016 including the Ogmore and Sheffield Brightside & Hillsborough by-elections
11–12 Apr	YouGov/The Times	1,693	23%	30%		46%	7%

Cameron vs Corbyn

2015

Date(s) conducted	Polling organisation/client	Sample size	David Cameron	Jeremy Corbyn	None of these	Not sure	Lead
18–19 Dec	YouGov/The Times	1,595	49%	23%		29%	28%
13–16 Dec	Opinium/The Observer	2,000	42%	16%	28%	13%	26%
25–28 Sep	ComRes	2,024	54%	30%		16%	24%

Multiple party leaders

Some polls ask voters to choose between multiple party leaders. The questions vary by pollster:

• Lord Ashcroft: "Which of the following do you think would make the best Prime Minister?"
• ComRes: "Who of the following would make the best Prime Minister after the upcoming General Election?"
• YouGov: "Which of the following do you think would make the best Prime Minister?"

2017

Date(s) conducted	Polling organisation/client	Sample size	Theresa May	Jeremy Corbyn	Tim Farron	Paul Nuttall	Don't Know	Lead
27 April–1 May	Lord Ashcroft Polls	40,329	64%	25%	11%			39%
27–28 Apr	YouGov/Sunday Times	1,612	45%	16%	6%	2%	32%	29%
20–21 Apr	YouGov/Sunday Times	1,590	46%	12%	6%	1%	35%	34%
19–20 Apr	ComRes/Sunday Mirror	2,074	62%	25%	10%	4%		37%

2016

Hypothetical polling

Date(s) conducted	Polling organisation/client	Sample size	Boris Johnson	Jeremy Corbyn	Don't Know	Lead
11–12 Apr 2016	YouGov/The Times	1,693	34%	29%	36%	5%
17–18 Dec 2015	YouGov/The Times	1,598	43%	29%	28%	14%

Date(s) conducted	Polling organisation/client	Sample size	George Osborne	Jeremy Corbyn	Don't Know	Lead
11–12 Apr 2016	YouGov/The Times	1,693	21%	34%	45%	13%
17–18 Dec 2015	YouGov/The Times	1,598	39%	27%	34%	12%

See also

• List of United Kingdom by-elections (2010–present)
• Opinion polling for the 2015 United Kingdom general election
• Opinion polling on the United Kingdom's membership of the European Union (2016–present)

External links

• Britain Elects – summary of new polls
• Elections in Wales: analysis of Wales-only polling.

Notes and References

1. Web site: Westminster Voting Intention. OpinionBee.uk. 16 October 2016.
2. Web site: Results of the 2017 General Election. BBC News. BBC. 10 June 2017.
3. Web site: Election campaigning suspended after London Bridge attack. https://ghostarchive.org/archive/20220524/https://www.independent.co.uk/news/uk/politics/london-bridge-borough-market-attack-general-election-campaign-suspended-conservatives-labour-latest-a7771711.html . 24 May 2022 . subscription . live. . 4 June 2017.
4. Web site: Election 2015: Results – National . BBC . 9 May 2015.
5. Web site: Election 2015: Results – Northern Ireland . BBC . 9 May 2015.
6. News: How YouGov's experimental poll correctly called the UK election . Revell . Timothy . New Scientist . 9 June 2017 . 9 June 2017.
7. Web site: 2017 UK Parliamentary Election Forecast. Hanretty. Chris. electionforecast.co.uk. 31 May 2017.
8. Web site: General Election Prediction. electoralcalculus.co.uk. 31 May 2017.
9. Web site: Ashcroft Model update: absent UKIP, and Labour's enthusiasm question. lordashcroftpolls.com.
10. Combined probabilistic estimate
11. Web site: COMBINED FORECAST FOR GE2017: SECOND UPDATE. 2 June 2017.
12. Web site: CONSTITUENCY FORECASTS, June 2017, New Statesman. 31 May 2017. 1 June 2017. https://web.archive.org/web/20180813175129/http://elections.newstatesman.com/constituency-forecasts/. 13 August 2018. dead.
13. Web site: Voting intention and seat estimates. 6 June 2017.
14. Web site: The Britain Elects Nowcast. 7 June 2017. June 2017. https://web.archive.org/web/20170605120825/http://britainelects.com/nowcast. 5 June 2017. dead.
15. News:
    1. GE17 UK General Election 2017 – 6 June projection
    . 2017-06-06. Scenaripolitici.com. 2017-06-07. it-IT.
16. Web site: Forecast #GE2017 – 8th June 2017. 8 June 2017. Forecast UK.
17. Web site: 7 June 2017. Spreadex UK General Election Update, 7th June 2017 Spreadex Financial Spread Betting. 2020-07-20. www.spreadex.com.
18. Web site: Election 2017: The Ashcroft Model. 12 May 2017. Lord Ashcroft Polls. 17 May 2017.
19. Web site: Dapresy. dashboards.lordashcroftpolls.com. 2 June 2017. 17 May 2021. https://web.archive.org/web/20210517061944/https://dashboards.lordashcroftpolls.com/login.aspx?target=1rH46DzH68RfFl7AknVWbbl4nsH0s%2F%2Fj5uXrUWFycQ4%3D. dead.
20. Web site: Politics Spread Betting Spreadex The Spread Experts. 2020-07-20. www.spreadex.com.
21. Web site: Results of the 2017 General Election . BBC . 10 June 2017.
22. Web site: Results of the 2017 General Election . BBC . 10 June 2017.
23. including Green
24. Web site: Results of the 2017 General Election . BBC . 10 June 2017.
25. Ipsos MORI's figures for 'don't know' are significantly lower than other pollsters on this question as they only prompt for May and Corbyn, with don't know/other/none included if respondents offer it unprompted
26. 1% of respondents chose 'Other' and a further 1% said 'no difference'.
27. The question used by Kantar Public differs slightly in its wording from other pollsters. They ask: "If you had to choose between Theresa May and Jeremy Corbyn, who do you think would make the best leader for Britain?"