South Korea / Parliamentary Election

Next South Korean legislative election

Name: Next South Korean legislative election opinion polls
Creator: Pollytic

South Korea polling average: Democratic 40.1% — People Power Party / People Future 32.1% — Democratic +8.0Also: Rebuilding Korea 4.4% · Reform Party 2.6% · Progressive Party 1.1% · Basic Income Party 0.2%Pollytic average to 29 Sept 2026: recent, larger polls weigh more; no institute counts more than once.

Election date

Polling trend

The average of recent polls. Newer polls and more accurate pollsters count more. How it’s calculated

Each point is one published poll; lines are the Pollytic average (recent, larger polls weigh more). Hover or tap for institute and date.

Latest polls

Each poll as published, with its pollster, fieldwork dates, sample size and a link to the source.

How to read a poll

Sample size is how many people were asked. More people means less random error, never none.
±3 is the margin of error: the real figure is likely within 3 points either way of the one shown.
Two polls can differ because they were taken on different dates, with different methods and different samples.
est. means the institute did not publish a margin of error, so it is estimated from the sample size.
The average smooths this out: it combines recent polls, so one unusual poll cannot swing the picture.

Polls with institute, dates, sample, margin of error, methodology and results
Institute	Date	Fieldwork	Sample	MoE	Method	Voting intention	Source
Realmeter / EKN	23 Sept 2026*	22 Sept 2026 – 23 Sept 2026	1,005	±3.1	—	People Power Party / People Future Party 39.4% +0.9 percentage points Democratic 38.7% −1.5 percentage points Rebuilding Korea 4.0% −1.2 percentage points Reform Party 2.9% +1.0 percentage points Progressive Party 1.4% +0.5 percentage points	Source for Realmeter / EKN poll (opens in a new tab)
Embrain Public / KBS	22 Sept 2026*	21 Sept 2026 – 22 Sept 2026	1,001	±3.1	—	Democratic 35.0% new People Power Party / People Future Party 28.0% new Rebuilding Korea 3.0% new Reform Party 2.0% new Progressive Party 1.0% new	Source for Embrain Public / KBS poll (opens in a new tab)
Jowon C&I / Straight News	21 Sept 2026*	19 Sept 2026 – 21 Sept 2026	2,007	±2.2	—	Democratic 40.3% −6.1 percentage points People Power Party / People Future Party 37.3% ±0.0 percentage points Rebuilding Korea 4.2% +2.4 percentage points Reform Party 1.8% +0.1 percentage points Progressive Party 0.6% −0.1 percentage points	Source for Jowon C&I / Straight News poll (opens in a new tab)
STI / Hankyoreh	20 Sept 2026*	15 Sept 2026 – 20 Sept 2026	1,592	±2.5	—	Democratic 44.2% −4.7 percentage points People Power Party / People Future Party 27.5% +3.7 percentage points Rebuilding Korea 5.9% +1.7 percentage points Reform Party 4.1% −2.4 percentage points Progressive Party 1.2% −0.4 percentage points	Source for STI / Hankyoreh poll (opens in a new tab)
Flower Research	19 Sept 2026*	18 Sept 2026 – 19 Sept 2026	1,003	±3.1	—	Democratic 43.4% +3.3 percentage points People Power Party / People Future Party 36.4% +0.1 percentage points Rebuilding Korea 4.9% +0.4 percentage points Reform Party 1.8% −0.6 percentage points Progressive Party 1.0% −0.1 percentage points	Source for Flower Research poll (opens in a new tab)
Realmeter / EKN	18 Sept 2026*	17 Sept 2026 – 18 Sept 2026	1,003	±3.1	—	Democratic 40.2% +4.1 percentage points People Power Party / People Future Party 38.5% −3.6 percentage points Rebuilding Korea 5.2% +0.5 percentage points Reform Party 1.9% +0.6 percentage points Progressive Party 0.9% −0.4 percentage points	Source for Realmeter / EKN poll (opens in a new tab)
Gallup Korea	17 Sept 2026*	15 Sept 2026 – 17 Sept 2026	1,002	±3.1	—	Democratic 40.0% +2.0 percentage points People Power Party / People Future Party 27.0% −2.0 percentage points Reform Party 3.0% ±0.0 percentage points Rebuilding Korea 3.0% +1.0 percentage points Progressive Party 1.0% −1.0 percentage points Basic Income Party 0.1% new	Source for Gallup Korea poll (opens in a new tab)
Flower Research	12 Sept 2026*	11 Sept 2026 – 12 Sept 2026	1,002	±3.1	—	Democratic 40.1% −2.5 percentage points People Power Party / People Future Party 36.3% +0.2 percentage points Rebuilding Korea 4.5% +0.3 percentage points Reform Party 2.4% +0.9 percentage points Progressive Party 1.1% +0.5 percentage points	Source for Flower Research poll (opens in a new tab)
Realmeter / EKN	11 Sept 2026*	10 Sept 2026 – 11 Sept 2026	1,003	±3.1	—	People Power Party / People Future Party 42.1% +4.5 percentage points Democratic 36.1% −5.7 percentage points Rebuilding Korea 4.7% +0.2 percentage points Reform Party 1.3% −1.0 percentage points Progressive Party 1.3% ±0.0 percentage points	Source for Realmeter / EKN poll (opens in a new tab)
Ace Research / Newsis	29 Sept 2026*	28 Sept 2026 – 29 Sept 2026	1,010	±3.1	—	People Power Party / People Future Party 29.4% +4.5 percentage points Rebuilding Korea 4.9% +0.9 percentage points Reform Party 2.9% −0.1 percentage points Progressive Party 1.2% −0.2 percentage points	Source for Ace Research / Newsis poll (opens in a new tab)
Gallup Korea	10 Sept 2026*	8 Sept 2026 – 10 Sept 2026	1,000	±3.1	—	Democratic 38.0% ±0.0 percentage points People Power Party / People Future Party 29.0% −1.0 percentage points Reform Party 3.0% +2.0 percentage points Progressive Party 2.0% +1.0 percentage points Rebuilding Korea 2.0% −1.0 percentage points	Source for Gallup Korea poll (opens in a new tab)
Flower Research	5 Sept 2026*	4 Sept 2026 – 5 Sept 2026	1,002	±3.1	—	Democratic 42.6% −3.3 percentage points People Power Party / People Future Party 36.1% +6.6 percentage points Rebuilding Korea 4.2% +0.5 percentage points Reform Party 1.5% −1.2 percentage points Progressive Party 0.6% −0.7 percentage points	Source for Flower Research poll (opens in a new tab)
Realmeter / EKN	4 Sept 2026*	3 Sept 2026 – 4 Sept 2026	1,001	±3.1	—	Democratic 41.8% −1.3 percentage points People Power Party / People Future Party 37.6% −0.1 percentage points Rebuilding Korea 4.5% +0.1 percentage points Reform Party 2.3% −0.3 percentage points Progressive Party 1.3% −0.1 percentage points	Source for Realmeter / EKN poll (opens in a new tab)
Gallup Korea	3 Sept 2026*	1 Sept 2026 – 3 Sept 2026	1,001	±3.1	—	Democratic 38.0% −1.0 percentage points People Power Party / People Future Party 30.0% +5.0 percentage points Rebuilding Korea 3.0% −1.0 percentage points Reform Party 1.0% −2.0 percentage points Progressive Party 1.0% ±0.0 percentage points Basic Income Party 0.4% +0.1 percentage points	Source for Gallup Korea poll (opens in a new tab)
Flower Research	29 Aug 2026*	28 Aug 2026 – 29 Aug 2026	1,004	±3.1	—	Democratic 45.9% +1.1 percentage points People Power Party / People Future Party 29.5% −4.4 percentage points Rebuilding Korea 3.7% +0.2 percentage points Reform Party 2.7% −0.1 percentage points Progressive Party 1.3% +0.3 percentage points	Source for Flower Research poll (opens in a new tab)
Realmeter / EKN	28 Aug 2026*	27 Aug 2026 – 28 Aug 2026	1,006	±3.1	—	Democratic 43.1% +1.2 percentage points People Power Party / People Future Party 37.7% +0.1 percentage points Rebuilding Korea 4.4% +0.5 percentage points Reform Party 2.6% +0.6 percentage points Progressive Party 1.4% −0.9 percentage points	Source for Realmeter / EKN poll (opens in a new tab)
Gallup Korea	27 Aug 2026*	25 Aug 2026 – 27 Aug 2026	1,001	±3.1	—	Democratic 39.0% −2.0 percentage points People Power Party / People Future Party 25.0% ±0.0 percentage points Rebuilding Korea 4.0% +2.0 percentage points Reform Party 3.0% +1.0 percentage points Progressive Party 1.0% −1.0 percentage points Basic Income Party 0.3% +0.1 percentage points	Source for Gallup Korea poll (opens in a new tab)
Flower Research	22 Aug 2026*	21 Aug 2026 – 22 Aug 2026	1,007	±3.1	—	Democratic 44.8% −3.4 percentage points People Power Party / People Future Party 33.9% +3.1 percentage points Rebuilding Korea 3.5% +0.9 percentage points Reform Party 2.8% +0.7 percentage points Progressive Party 1.0% −0.2 percentage points	Source for Flower Research poll (opens in a new tab)
Realmeter / EKN	21 Aug 2026*	20 Aug 2026 – 21 Aug 2026	1,009	±3.1	—	Democratic 41.9% −6.0 percentage points People Power Party / People Future Party 37.6% +4.5 percentage points Rebuilding Korea 3.9% +1.4 percentage points Progressive Party 2.3% +0.4 percentage points Reform Party 2.0% −0.2 percentage points	Source for Realmeter / EKN poll (opens in a new tab)
Gallup Korea	20 Aug 2026*	18 Aug 2026 – 20 Aug 2026	1,004	±3.1	—	Democratic 41.0% ±0.0 percentage points People Power Party / People Future Party 25.0% ±0.0 percentage points Reform Party 2.0% −1.0 percentage points Progressive Party 2.0% +1.0 percentage points Rebuilding Korea 2.0% ±0.0 percentage points Basic Income Party 0.2% −0.3 percentage points	Source for Gallup Korea poll (opens in a new tab)

* End of fieldwork: the source states no publication date.

Select two or more polls to compare them side by side.

What the polls say

Democratic leads the polling average in South Korea on 40.1%, 8.0 points ahead of People Power Party / People Future Party (32.1%). The biggest shift over the past month is Democratic, down 3.6 points.

14 polls from 7 institutes were published in the last 30 days of polling. The most recent is from Ace Research / Newsis, published 29 Sept 2026. The average gives recent and larger polls more weight and counts no institute more than once; read how it works.

Parties

Who is standing, in order of the polling average, then the result.

Democratic
People Power Party / People Future
Rebuilding Korea
Reform
Progressive
Basic Income

Government

Who governs South Korea now.

Lee Jae Myung

Lee Jae Myung government