Opinion polling for the 2020 South Korean legislative election

In the run up to the 2020 South Korean legislative election, various organisations carried out opinion polling to gauge voting intention in South Korea. Results of such polls are displayed in this article.

Opinion polls

Campaign period

Constituency votes

Polling firm	Fieldwork date	Sample size	Resp.	DP	UFP	MP	JP	ORP	MP	PNP	KEP	Others	Lead
Gallup	7 - 8 Apr 2020	1,000	–	44	23	0.7	6	0.7	0.6	0.3	-	1	21
Realmeter	6 - 8 Apr 2020	1,509	–	42.6	30.2	2.6	4.9	1.1	1.6	2.0	1.7	1.5	12.4
Realmeter	30 Mar - 3 Apr 2020	2,521	–	43.2	28.8	2.2	5.4	1.4	1.4	1.7	1.3	1.6	14.4
Gallup	31 Mar - 2 Apr 2020	1,002	–	41	23	0.1	4	0.5	0.3	0.3	-	1	18
C&I	28-30 Mar 2020	1,000	–	44.7	33.3	1.3	4.5	1.6	2	1.9	-	3.7	11.4
Research&Research	28-29 Mar 2020	1,001	–	38	25.3	0.9	3.4	2	1	-	-	4.2	12.7

Proportional votes

Polling firm	Fieldwork date	Sample size	Resp.	PlP	FKP	MP	JP	ORP	MP	PP	PNP	ODP	KEP	Others	Lead
Gallup	7 - 8 Apr 2020	1,000	–	23	22	2.6	13	1	-	6	-	8	-	2	1
Realmeter	6 - 8 Apr 2020	1,509	–	24.2	27.8	3	8.1	1	1.4	5.3	2.4	12.3	1.7	2.7	3.6
Ipsos	4 - 6 Apr 2020	1,004	–	23.2	24.2	1.2	12.5	1.5	-	7.4	-	8.6	-	-	1
Realmeter	30 Mar - 3 Apr 2020	2,521	–	21.7	25.0	2.8	8.5	1.9	1.6	4.7	2.1	14.4	1.6	3.2	3.3
Gallup	31 Mar - 2 Apr 2020	1,002	–	21	23	2	11	1	-	5	-	10	-	2	2
Realmeter	30 Mar - 1 Apr 2020	1,514	–	20.8	25.1	2.9	8.2	2	1.2	5.1	1.8	14.3	2.0	3.2	4.3
C&I	28-30 Mar 2020	1,000	–	22.5	31.9	2.4	7.7	2.2	1.8	5.3	1.6	15.5	-	3.4	9.4
Research&Research	28-29 Mar 2020	1,001	–	16.5	21.8	0.9	8.5	1.3	-	3.4	-	9	-	1.1	5.3
Realmeter	23-27 Mar 2020	2,531	–	29.8	27.4	2.2	5.9	2	1.2	4.3	2.3	11.7	-	2.5	2.4

Pre-campaign period

2020

Date(s) Conducted	Polling firm	DP	UFP	MP	JP	ORP	MP	PP	PNP	ODP	Others	Undecided	Lead
24-26 March	Gallup Korea	37	22	0	5	1	—	4	—	2	2	27	15
23-27 March	Realmeter	44.6	30.0	1.8	4.6	1.8	1.0	3.3	1.6	—	2.8	8.4	14.6

Date(s) Conducted	Polling firm	DP	UFP	MP	JP	LRP	MP	PP	PNP	ODP	Others	Undecided	Lead
17-19 March	Gallup Korea	38	23	1	4	1	—	4	—	1	1	28	15
16-20 March	Realmeter	42.1	33.6	1.4	3.7	1.4	1.3	4.0	2.1	—	1.9	8.6	8.5
10-12 March	Gallup Korea	39	22	0	6	1	—	3	—	—	1	28	17
9-13 March	Realmeter	41.5	32.1	2.1	4.3	2.4	1.2	3.9	—	—	1.6	10.9	9.4

Date(s) Conducted	Polling firm	DP	UFP	MP	JP	ORP	MP	PP	Others	Undecided	Lead
3-5 March	Gallup Korea	36	22	1	6	—	—	2	2	31	14
2-6 March	Realmeter	41.7	31.2	4.1	4.9	1.6	0.8	4.7	1.3	9.7	10.5
25-27 February	Gallup Korea	37	21	1	6	—	—	2	1	33	16
25-28 February	Realmeter	41.0	31.0	4.1	4.3	1.6	1.0	1.7	1.7	13.6	10.0

Date(s) Conducted	Polling firm	DP	UFP	Bareunmirae	NA	JP	PDP	ORP	MP	PP	Others	Undecided	Lead
18-20 February	Gallup Korea	36	23	4	—	7	—	—	—	2	1	27	13
17-21 February	Realmeter	40.5	33.7	3.0	1.3	4.1	2.2	1.5	1.0	2.3	0.9	9.5	6.8

Date(s) Conducted	Polling firm	DP	LKP	Bareunmirae	NCP	NA	JP	PDP	ORP	MP	Others	Undecided	Lead
11-13 February	Gallup Korea	37	21	3	3	5	—	—	—	4	1	27	16
10-14 February	Realmeter	39.9	32.0	2.6	3.9	0.9	4.8	1.5	1.2	1.3	0.8	11.1	7.9

2019

Date(s) Conducted	Polling firm	Democratic	Liberty Korea	Bareunmirae	Democracy and Peace	Justice	Others	Lead
19–21 March	Gallup Korea	37	21	7	1	9	1	16
18–20 March	Realmeter	39.9	31.9	4.9	2.3	7.3	1.5	8.0
11–15 March	Realmeter	36.6	31.7	5.9	2.1	6.9	1.7	4.9
12–14 March	Gallup Korea	39	22	7	1	7	1	17
4–8 March	Realmeter	37.2	30.4	6.2	2.1	7	1.6	6.8
5–7 March	Gallup Korea	39	20	7	1	8	0	19
26–28 February	Gallup Korea	38	20	7	1	8	0	18
25–28 February	Realmeter	38.3	28.8	7.3	2.7	6.9	1.8	9.5
19–21 February	Gallup Korea	40	19	6	1	9	1	21
18–22 February	Realmeter	40.4	26.8	6.6	3.2	7.1	1.5	13.6
12–14 February	Gallup Korea	40	19	8	1	8	1	21
11–15 February	Realmeter	40.3	25.2	6	2.8	7	1.6	15.1
7–8 February	Realmeter	38.9	28.9	6.8	2.9	6.2	1.9	10
29–31 January	Gallup Korea	39	21	6	1	9	0	18
28 January – 1 February	Realmeter	38.2	27.4	6.3	2.5	7.2	2.3	10.8
21–25 January	Realmeter	38.7	26.7	5.5	3.1	8.1	2	12
15–17 January	Gallup Korea	40	16	8	1	8	0	24
14–18 January	Realmeter	39.8	24.3	6.3	2.7	7.5	2	15.5
8–10 January	Gallup Korea	40	16	7	1	9	0	24
7–11 January	Realmeter	40.1	23.9	6.4	2.2	9.1	2.2	16.2

2018

Date(s) Conducted	Polling firm	Democratic	Liberty Korea	Bareunmirae	Democracy and Peace	Justice	Others	Lead
15–17 October	Realmeter	42.3	20	6.6	3.1	9.8	2.2	22.3
2–4 October	Gallup Korea	48	11	7	1	9	1	37
28–30 September	ResearchView	48	18	7	2	8	2	30
23 September	R&Search	42.5	17.7	7.1	3	9.1	2.8	24.8
11–13 September	Gallup Korea	40	11	8	0.5	12	0	28
3–4 September	Research&Research	41.3	12.6	7	0.5	10	2.4	28.7
27–31 August	Realmeter	41.4	18.8	6.6	2.8	11.8	2.1	22.6
21–23 August	Gallup Korea	42	11	5	1	15	1	27
13–17 August	Realmeter	39.6	19.9	7.3	2.4	13.3	1.7	19.7
4–5 August	ResearchView	41.9	15.8	6.6	1.2	17	2.4	24.9
31 July – 2 August	Gallup Korea	41	11	5	1	15	0	26
23–27 July	Realmeter	44	18.6	7	2.9	12.5	1.6	25.4
10–12 July	Gallup Korea	49	10	6	0.3	10	0	39
9–11 July	Realmeter	44.3	16.8	6.3	2.8	12.4	2.6	27.5
2–6 July	Realmeter	47.5	18.3	5.8	2.9	10.4	2.6	29.2
30 June – 1 July	ResearchView	48	20	5	4	12	4	28
26–28 June	Gallup Korea	52	10	5	1	9	1	42
25–27 June	Realmeter	47.8	18.3	5.3	2.3	10.1	2.6	29.5
18–20 June	Realmeter	53.6	17.4	5.2	2.7	7.9	1.9	36.2
13 June	2018 local elections
28 May – 1 June	Realmeter	52.2	19.8	5.6	2.9	6.3	1.9	32.4
23–24 May	Gallup Korea	53	13	5	1	4	0	40
14–18 May	Realmeter	54.2	18.7	5.7	3.4	5.8	1.5	35.5
5–6 May	ResearchView	55	20	7	2	6	2	35
28–29 April	KSOI	58.8	11	6.8	0.6	4.2	2	47.8
9–13 April	Realmeter	50.4	21.9	5.7	3.3	4.2	1.9	28.5
26–30 March	Realmeter	51.3	20.7	6.8	2.4	5.2	2.2	30.6
20–22 March	Gallup Korea	47	14	6	1	5	0	33
26 February – 2 March	Realmeter	50	19.7	6.8	3	4.5	2.6	30.3
20–22 February	Gallup Korea	48	11	8	1	6	1	37
11–14 February	Kantar Public	47.9	14.9	8.1	1.6	5.6	1.3	33
5–9 February	Realmeter	44.4	19.1	11	4.2	7	2.1	25.3

2016 to 2017

Date(s) Conducted	Polling firm	Democratic	Liberty Korea	People	Bareun	Justice	Others	Lead
18–22 December	Realmeter	52.0	17.8	4.9	5.7	5.2	1.6	34.2
5–7 December	Gallup Korea	46	11	5	8	5	0	35
18–19 November	Research & Research	49.0	11.8	5.5	6.3	5.4	0.8	37.2
30 October – 1 November	Realmeter	50.9	17.5	6.6	4.4	5.7	2.3	33.4
13–14 October	KSOI	49.7	12.2	6.9	5.2	5.6	1.7	37.5
18–20 September	Realmeter	49.8	17.0	6.0	6.3	4.7	2.8	32.8
28–30 August	Realmeter	52.2	16.8	6.2	6.5	6.0	1.7	35.4
4–6 July	Gallup Korea	50	14	4	8	6	0	36
10–12 May	Realmeter	44.7	13.0	8.8	8.3	9.6	1.3	31.7
9 May	2017 presidential election
26 April	Research & Research	38.8	12.9	20.3	5.7	6.3	0.3	18.5
11–13 April	Gallup Korea	41	9	24	4	4	0	17
14 March	Hankook Research	39.4	10.5	9.3	4.8	5.2	2.9	28.9
10 March	Impeachment of Park Geun-hye
1–2 February	Realmeter	36.4	11.6	12.1	7.9	4.8	2.7	24.8
28–30 January	JoWon C&I	36.9	12.3	11.9	8.8	5.0	3.0	24.6
10–12 January	Gallup Korea	41	12	10	7	3	0	29
2016
2 November	2016 South Korean political scandal begins
24–26 October	Realmeter	30.5	26.5	14.4	–	4.5	3.9	4.0
26–30 September	Realmeter	28.8	33.0	13.9	–	4.5	3.6	4.2
27–28 August	ResearchView	30.6	27.6	14.3	–	7.4	0.7	3.0
31 July – 1 August	R&Search	23.0	33.5	11.8	–	5.6	–	10.5
28–30 June	Gallup Korea	23	30	14	–	6	0	7
30 May – 1 June	Realmeter	29.8	30.1	17.7	–	7.6	2.9	0.3
19–21 Apr	Gallup Korea	24	30	25	–	7	0	5
13 April 2016	2016 elections (PR)	25.5	33.5	26.7	-	7.2	6.9	8.0

General notes

• Gallup Korea provides poll results only to the nearest whole number.