# Next South Korean presidential election

The next South Korean presidential election was originally scheduled for 2027. However, following the impeachment of Yoon Suk Yeol on 14 December 2024, an early election in 2025 is possible. According to the South Korean constitution, if President Yoon Suk Yeol resigns or is removed from office by the Constitutional Court, a snap presidential election must be held within 60 days.
The next presidential election will be the ninth presidential election since democratization and the establishment of the Sixth Republic. Under the South Korean constitution, the president is restricted to a single five-year term in office, making President Yoon ineligible for a second term.

## Background

Following the declaration of martial law by President Yoon Suk Yeol on 3 December 2024, the opposition Democratic Party, which held a majority in the National Assembly, announced it would introduce an impeachment motion against President Yoon. On 7 December, the vote on the first impeachment motion failed to achieve the necessary two-thirds majority to meet the quorum, with the ruling People Power Party boycotting the vote.
Following the vote, PPP Leader Han Dong-hoon said President Yoon had agreed to step aside and that Prime Minister Han Duck-soo would manage state affairs until Yoon's "orderly resignation".
On 10 December, the PPP said that it was discussing Yoon's early resignation as early as February 2025 over the ongoing turmoil after his martial law declaration, followed by a snap election in April or May.
On 14 December 2024, President Yoon was impeached by the National Assembly in a second impeachment motion. The National Assembly voted with 204 of 300 lawmakers supporting impeachment.

## Electoral system

The president of South Korea is elected via a single-round plurality voting system, for a term of five years. Incumbent and former presidents are ineligible to seek re-election.

## Potential candidates
### Democratic Party

* Lee Jae-myung
* Kim Dong-yeon
* Kim Kyoung-soo
* Lee Jae-myung (Member of the National Assembly)
* Kim Dong-yeon (Governor of Gyeonggi Province)
* Kim Kyoung-soo (former Governor of South Gyeongsang Province)

### People Power Party

* Han Dong-hoon
* Oh Se-hoon
* Hong Joon-pyo
* Yoo Seong-min
* Ahn Cheol-soo
* Kim Moon-soo
* Han Dong-hoon (former Minister of Justice)
* Oh Se-hoon (Mayor of Seoul)
* Hong Joon-pyo (Mayor of Daegu)
* Yoo Seong-min (former Member of the National Assembly)
* Ahn Cheol-soo (Member of the National Assembly)
* Kim Moon-soo (Minister of Employment and Labor)

### New Reform Party

* Lee Jun-seok
* Lee Jun-seok (Member of the National Assembly)

### New Future Party

* Lee Nak-yon
* Lee Nak-yon (former Prime Minister of South Korea)

### Declined and ineligible to run

* Cho Kuk
* Cho Kuk (former Member of the National Assembly): Cho was sentenced to prison in December 2024, making him ineligible to run for office until December 2031.

## Opinion polls
### Polling before nominees finalized

| Fieldwork date | Sample size | Margin of error | Polling firm | DPK | DPK | DPK | PPP | PPP | PPP | PPP | PPP | PPP | PPP | RKP | NRP | NFP | Others | Und./ no ans. | Lead |
| Fieldwork date | Sample size | Margin of error | Polling firm | Lee Jae-myung | Kim Dong-yeon | Kim Kyoung-soo | Han Dong-hoon | Oh Se-hoon | Hong Joon-pyo | Yoo Seong-min | Won Hee-ryong | Ahn Cheol-soo | Kim Moon-soo | Cho Kuk | Lee Jun-seok | Lee Nak-yon | Others | Und./ no ans. | Lead |
| 15-16 Mar 2025 | 1,000 | ±3.1 | KSOI / CBS | 47.2 | 2.0 | 0.6 | 5.7 | 5.5 | 6.4 | — | — | 1.4 | 16.7 | — | 2.5 | — | 5.5 | 6.5 | 30.5 |
| 12-14 Mar 2025 | 1,510 | ±2.5 | Realmeter / EKN | 46.9 | 1.2 | 0.4 | 6.3 | 6.2 | 6.5 | 2.4 | — | — | 18.1 | — | — | 2.2 | 3.6 | 6.3 | 27.4 |
| 11-13 Mar 2025 | 1,001 | ±3.1 | Gallup Korea | 34 | — | — | 6 | 4 | 3 | — | — | — | 10 | 2 | 1 | — | 6 | 35 | 24 |
| 8-10 Mar 2025 | 2,001 | ±2.2 | Jowon C&I / Straight News | 42.8 | 2.2 | 1.2 | 8.4 | 6.2 | 6.4 | — | — | — | 19.1 | — | 2.5 | — | 4.5 | 6.7 | 25 |
| 4–6 Mar 2025 | 1,003 | ±3.1 | Gallup Korea | 35 | — | — | 6 | 4 | 5 | — | — | — | 10 | 1 | 1 | — | 4 | 34 | 25 |
| 3–5 Mar 2025 | 1,000 | ±3.1 | NBS | 29 | 2 | 0 | 6 | 8 | 6 | 1 | — | 2 | 10 | — | 1 | — | 2 | 34 | 19 |
| 3–4 Mar 2025 | 1,004 | ±3.1 | Ace Research / Newsis | 43.7 | 1.2 | 0.8 | 7.4 | 5.4 | 5.0 | 1.8 | 1.0 | 1.6 | 18.2 | — | 1.6 | 1.6 | 5.1 | 5.7 | 22.3 |
| 28 Feb–1 Mar 2025 | 1,001 | ±3.1 | KSOI / Digital Times | 42.0 | 2.0 | 1.0 | 7.8 | 7.0 | 6.2 | — | — | 1.6 | 19.7 | — | 1.5 | — | 3.0 | 8.2 | 22.3 |
| 28 Feb–1 Mar 2025 | 1,000 | ±3.1 | Flower Research | 43.6 | 1.5 | — | 6.4 | 5.1 | 5.3 | — | — | 1.3 | 11.8 | — | 1.2 | — | 3.5 | 20.4 | 31.8 |
| 26–28 Feb 2025 | 1,000 | ±3.1 | Researchview | 42 | 2 | 2 | 7 | 6 | 5 | 1 | 1 | 2 | 22 | — | 2 | 2 | 4 | 4 | 20 |
| 26–28 Feb 2025 | 1,506 | ±2.5 | Realmeter / EKN | 46.3 | 1.4 | 1.3 | 6.9 | 5.1 | 6.8 | 2.1 | — | — | 18.9 | — | — | 1.7 | 3.9 | 5.5 | 27.4 |
| 25–27 Feb 2025 | 1,000 | ±3.1 | Gallup Korea | 35 | — | — | 4 | 3 | 4 | 1 | — | 1 | 10 | — | 1 | — | 4 | 34 | 25 |
| 24–26 Feb 2025 | 1,001 | ±3.1 | NBS | 31 | 1 | 0 | 5 | 6 | 6 | 2 | — | 2 | 13 | — | 1 | — | 2 | 30 | 18 |
| 22–24 Feb 2025 | 2,004 | ±2.2 | Jowon C&I / Straight News | 40.4 | 1.8 | 0.9 | 6.5 | 8.0 | 5.6 | — | 2.4 | — | 20.4 | — | 2.6 | — | 3.1 | 8.3 | 20.0 |
| 19–20 Feb 2025 | 1,010 | ±3.1 | Flower Research | 43.3 | 2.2 | — | 3.3 | 6.3 | 6.7 | — | — | 1.9 | 12.0 | — | 0.7 | — | 1.9 | 21.7 | 31.3 |
| 18–20 Feb 2025 | 1,002 | ±3.1 | Gallup Korea | 34 | — | — | 4 | 4 | 5 | 1 | — | 1 | 9 | 2 | 2 | — | 5 | 32 | 25 |
| 17–19 Feb 2025 | 1,000 | ±3.1 | NBS | 31 | 1 | 1 | 5 | 8 | 5 | 2 | — | 2 | 10 | — | 2 | — | 3 | 31 | 21 |
| 13–14 Feb 2025 | 1,000 | ±3.1 | Realmeter / EKN | 43.3 | 1.2 | 1.2 | 5.7 | 10.3 | 7.1 | 2.5 | — | — | 18.1 | — | — | 1.4 | 2.6 | 6.7 | 25.2 |
| 11–13 Feb 2025 | 1,004 | ±3.1 | Gallup Korea | 34 | 1 | — | 5 | 5 | 5 | — | — | — | 12 | 1 | 1 | — | 5 | 30 | 22.9 |
| 8–10 Feb 2025 | 2,001 | ±2.2 | Jowon C&I / Straight News | 41.6 | 1.4 | 1.2 | 6.4 | 9.6 | 5.8 | — | 2.2 | — | 18.7 | — | 2.4 | — | 4.1 | 6.7 | 22.9 |
| 5–6 Feb 2025 | 1,001 | ±3.1 | Media Research / Newspim | 41.7 | 2.4 | — | 5.1 | 8.9 | 4.1 | — | 0.7 | 1.7 | 24.2 | — | 1.6 | — | 5.8 | 3.9 | 17.5 |
| 3–5 Feb 2025 | 1,005 | ±3.1 | NBS | 32 | 2 | 1 | 6 | 8 | 7 | 1 | — | 2 | 12 | — | 1 | — | 3 | 27 | 20 |
| 1–2 Feb 2025 | 1,000 | ±3.1 | Ace Research / Newsis | 41.4 | 1.9 | 0.8 | 6.7 | 6.4 | 6.3 | 1.5 | 1.1 | 1.6 | 20.3 | — | 2.6 | 1.1 | 2.9 | 5.5 | 21.1 |
| 31 Jan–1 Feb 2025 | 1,004 | ±3.1 | Gallup Korea / Segye Ilbo | 37 | 1 | — | 5 | 7 | 4 | 1 | — | 1 | 11 | 1 | 1 | — | 4 | 26 | 26 |
| 31 Jan–1 Feb 2025 | 1,005 | ±3.1 | KOPRA / Asia Today | 38 | 3 | 1 | 8 | 7 | 7 | — | 1 | — | 19 | — | 1 | 2 | 5 | 9 | 19 |
| 29–31 Jan 2025 | 1,000 | ±3.1 | Researchview | 45 | 2 | 1 | 6 | 8 | 6 | 2 | 1 | 2 | 20 | — | 1 | 1 | 3 | 3 | 25 |
| 27–28 Jan 2025 | 1,004 | ±3.1 | Korea Research / MBC | 36 | 2 | 1 | 5 | 7 | 6 | 1 | 1 | 2 | 17 | — | 1 | — | 3 | 17 | 19 |
| 24–26 Jan 2025 | 1,000 | ±3.1 | Hankook Researach / KBS | 35 | 3 | 0 | 7 | 5 | 5 | 1 | 1 | 2 | 14 | — | 1 | — | 6 | 18 | 21 |
| 23–25 Jan 2025 | 1,004 | ±3.1 | Ipsos / SBS | 35 | 1 | 1 | 7 | 6 | 8 | 2 | 2 | 3 | 15 | — | 2 | — | 4 | 16 | 20 |
| 23–24 Jan 2025 | 1,031 | ±3.1 | Gallup Korea / JoongAngIlbo | 36 | 4 | — | 8 | 7 | 10 | — | — | — | 16 | — | 1 | — | 4 | 14 | 20 |
| 22–23 Jan 2025 | 1,003 | ±3.1 | Embrain Public / YTN | 31 | 2 | 0 | 7 | 5 | 9 | 2 | — | 2 | 14 | — | 2 | — | 6 | 20 | 17 |
| 21–23 Jan 2025 | 1,000 | ±3.1 | Gallup Korea | 31 | 1 | — | 5 | 3 | 4 | 1 | — | 1 | 11 | 2 | 1 | — | 5 | 33 | 20 |
| 20–22 Jan 2025 | 1,000 | ±3.1 | NBS | 28 | 2 | 1 | 6 | 6 | 7 | 2 | — | 3 | 14 | — | 1 | — | 4 | 27 | 14 |
| 20–21 Jan 2025 | 1,012 | ±3.1 | Media Research / Newspim | 36.4 | 2.5 | — | 6.4 | 6.7 | 5.7 | — | 2.0 | 2.8 | 24.9 | — | 1.5 | — | 6.9 | 4.2 | 11.5 |
| 18–20 Jan 2025 | 2,006 | ±2.2 | Jowon C&I / Straight News | 37.9 | 2.6 | 1.2 | 7.3 | 9.1 | 12.3 | — | 5.7 | 2.7 | — | — | 2.6 | — | 10.2 | 8.4 | 25.6 |
| 14–16 Jan 2025 | 1,001 | ±3.1 | Gallup Korea | 31 | 1 | — | 6 | 4 | 6 | — | — | — | 7 | 1 | 2 | — | 6 | 36 | 24 |
| 13–15 Jan 2025 | 1,005 | ±3.1 | NBS | 28 | 3 | 1 | 5 | 6 | 8 | 2 | — | 2 | 13 | — | 2 | — | 4 | 37 | 15 |
| 7–9 Jan 2025 | 1,004 | ±3.1 | Gallup Korea | 32 | 1 | — | 6 | 3 | 5 | — | — | 2 | 8 | 2 | 2 | — | 6 | 33 | 24 |
| 6–8 Jan 2025 | 1,000 | ±3.1 | NBS | 31 | 2 | 1 | 5 | 7 | 7 | 2 | — | 4 | — | — | 1 | — | 9 | 31 | 24 |
| 6–7 Jan 2025 | 1,000 | ±3.1 | Media Research / Newspim | 39.1 | 3.1 | 1.6 | 5.8 | 9.5 | 9.3 | — | 6.2 | 2.6 | — | — | 1.5 | — | 14.1 | 7.2 | 29.6 |
| 4–6 Jan 2025 | 2,003 | ±2.2 | Jowon C&I / Straight News | 45.1 | 2.2 | 1.2 | 7.8 | 6.1 | 9.7 | — | 7.2 | 2.2 | — | — | 3.1 | — | 8.0 | 7.3 | 35.4 |
| 4–5 Jan 2025 | 1,000 | ±3.1 | KOPRA / Newdaily | 40.9 | 3.0 | 2.1 | 8.5 | 7.3 | 10.3 | 2.9 | 7.9 | — | — | — | 3.1 | — | 5.6 | 8.3 | 30.6 |
| 3–4 Jan 2025 | 1,015 | ±3.1 | Flower Research | 42.8 | 3.0 | — | 5.4 | 5.8 | 8.2 | — | — | 2.3 | — | — | 2.1 | — | 3.8 | 26.7 | 34.6 |
| 29–31 Dec 2024 | 1,000 | ±3.1 | Researchview | 42 | 2 | 2 | 9 | 7 | 8 | 2 | — | 2 | — | — | 4 | 2 | 9 | 10 | 33 |
| 29–31 Dec 2024 | 1,014 | ±3.1 | Next Researach / Maeil Business | 32 | 3 | 1 | 5 | 8 | 8 | — | — | 3 | — | — | 3 | — | 9 | 28 | 24 |
| 29–31 Dec 2024 | 1,000 | ±3.1 | Hankook Researach / KBS | 36 | 2 | 1 | 6 | 6 | 8 | 1 | — | 2 | — | — | 2 | — | 9 | 27 | 28 |
| 29–30 Dec 2024 | 1,003 | ±3.1 | Korea Research / MBC | 40 | 2 | 0 | 7 | 5 | 8 | 2 | 3 | 2 | — | — | 1 | — | 8 | 22 | 32 |
| 29–30 Dec 2024 | 1,010 | ±3.1 | Ace Research / Newsis | 40.1 | 4.0 | 1.3 | 9.0 | 5.5 | 6.9 | — | 3.1 | 1.6 | 10.0 | — | 3.5 | 1.8 | 7.9 | 5.3 | 31.1 |
| 29–30 Dec 2024 | 1,006 | ±3.1 | Embrain Public / JoongAngIlbo | 35 | 2 | 0 | 6 | 5 | 8 | 2 | 2 | 2 | 5 | — | 2 | 1 | 8 | 22 | 27 |
| 28–29 Dec 2024 | 1,000 | ±3.1 | Research&Research / Dong-A Ilbo | 39.5 | 4.3 | 0.8 | 8.0 | 8.7 | 8.9 | 3.7 | — | 3.0 | — | — | 2.3 | — | 8.1 | 11.5 | 30.6 |
| 28–29 Dec 2024 | 1,020 | ±3.1 | Metavoice / Kyunghyang Shinmun | 33 | 2 | — | 7 | 5 | 4 | 1 | — | 1 | 5 | 2 | 1 | 1 | 8 | 31 | 26 |
| 26–27 Dec 2024 | 1,000 | ±3.1 | Hankook Researach / Korea Times | 35 | 3 | — | 5 | 4 | 7 | — | 3 | 3 | — | — | 2 | — | 10 | 28 | 28 |
| 22–23 Dec 2024 | 1,000 | ±3.1 | Hankook Researach / Hankookilbo | 38 | 2 | — | 7 | 5 | 5 | — | 3 | 3 | — | — | 2 | — | 10 | 24 | 31 |
| 17–19 Dec 2024 | 1,000 | ±3.1 | Gallup Korea | 37 | — | — | 5 | 2 | 5 | 2 | — | 1 | 2 | 3 | 2 | — | 6 | 35 | 32 |
| 14–16 Dec 2024 | 2,002 | ±2.2 | Jowon C&I / Straight News | 48.0 | 5.7 | — | 8.0 | 5.7 | 7.0 | — | 4.8 | 2.8 | — | — | 4.0 | — | 5.9 | 8.1 | 40.0 |
| 9 Dec 2024 | 1,001 | ±3.1 | Gongjung / Dailian | 49.0 | 4.4 | 1.2 | 9.1 | 6.0 | 5.8 | — | — | 3.3 | — | 6.8 | — | — | 5.6 | 8.6 | 39.9 |
| 7–9 Dec 2024 | 2,002 | ±2.2 | Jowon C&I / Straight News | 47.3 | 4.1 | — | 12.9 | 5.3 | 4.6 | — | 3.5 | 2.6 | — | 6.9 | 3.3 | — | 2.1 | 7.3 | 34.4 |
| 8 Dec 2024 | 1,000 | ±3.1 | Researchview / KPI News | 46.8 | 4.4 | 1.4 | 7.1 | 5.6 | 5.8 | 2.0 | — | 3.3 | — | 7.1 | 3.0 | 1.7 | 3.2 | 8.6 | 39.7 |
| 8 Dec 2024 | 1,007 | ±3.1 | Media Research / Newspim | 52.4 | 3.9 | 3.1 | 9.8 | 6.7 | 4.9 | — | — | — | — | 5.5 | — | — | 6.1 | 7.7 | 42.6 |
| 6–7 Dec 2024 | 1,014 | ±3.1 | Gallup Korea / Kukminilbo | 41 | 2 | — | 9 | 2 | 3 | — | — | — | 2 | 6 | 2 | — | 6 | 29 | 32 |
| 6–7 Dec 2024 | 1,004 | ±3.1 | Flower Research | 42.5 | 2.1 | — | 9.9 | 6.2 | 6.1 | — | — | 1.2 | — | 5.0 | 0.8 | — | 2.3 | 24.0 | 32.6 |
| 3–5 Dec 2024 | 1,001 | ±3.1 | Gallup Korea | 29 | 3 | — | 11 | 3 | 3 | — | — | 1 | 2 | 4 | 1 | — | 5 | 37 | 18 |
| 4 Dec 2024 | 1,047 | ±3.0 | Media Research / Newspim | 47.5 | — | — | 13.3 | 4.7 | 5.6 | — | 2.7 | — | — | 6.0 | — | 3.4 | 6.3 | 10.3 | 34.2 |
| 29–30 Nov 2024 | 1,001 | ±3.1 | Flower Research | 38.4 | 2.8 | — | 13.1 | 7.1 | 5.6 | — | — | 1.6 | — | 4.4 | 1.5 | — | 1.2 | 24.3 | 25.3 |
| 26–27 Nov 2024 | 1,001 | ±3.1 | KSOI / CBS | 41.3 | 3.4 | 0.7 | 19.3 | 7.0 | 5.8 | — | — | — | — | 6.3 | — | — | 7.3 | 9.0 | 22.0 |
| 23–25 Nov 2024 | 2,001 | ±2.2 | Jowon C&I / Straight News | 43.8 | 4.8 | — | 17.2 | 5.2 | 5.3 | — | 4.2 | 1.2 | — | 5.8 | 3.6 | — | 2.0 | 7.0 | 26.6 |
| 18–19 Nov 2024 | 1,000 | ±3.1 | Gongjung / Dailian | 43.6 | 3.7 | 1.4 | 17.3 | 7.6 | 5.3 | — | — | 2.5 | — | 6.3 | — | — | 4.6 | 7.7 | 26.3 |
| 9-11 Nov 2024 | 2,000 | ±2.2 | Jowon C&I / Straight News | 46.9 | 4.1 | — | 17.0 | 4.2 | 4.7 | — | 4.0 | 1.8 | — | 5.7 | 3.8 | — | 2.2 | 5.5 | 29.9 |
| 8–9 Nov 2024 | 1,005 | ±3.1 | Flower Research | 39.3 | 2.7 | — | 12.7 | 5.4 | 5.4 | — | — | 2.0 | — | 6.0 | 2.3 | — | 2.1 | 22.1 | 26.6 |
| 5-7 Nov 2024 | 1,002 | ±3.1 | Gallup Korea | 29 | 2 | — | 14 | 3 | 4 | — | — | — | 1 | 5 | — | — | 4 | 36 | 15 |
| 4–5 Nov 2024 | 1,000 | ±3.1 | Gongjung / Dailian | 41.0 | 4.2 | 1.2 | 16.7 | 8.5 | 6.3 | — | — | 2.2 | — | 6.6 | — | — | 6.0 | 7.1 | 24.3 |
| 1–2 Nov 2024 | 1,002 | ±3.1 | KSOI / Ohmynews | 37.3 | 4.1 | 1.7 | 15.3 | 7.1 | 5.8 | — | — | — | — | 8.2 | 3.9 | — | 7.0 | 9.7 | 22.0 |
| 26–28 Oct 2024 | 2,000 | ±2.2 | Jowon C&I / Straight News | 45.0 | 3.2 | — | 18.6 | 5.2 | 4.3 | — | 3.5 | 2.1 | — | 5.6 | 4.8 | — | 1.5 | 6.2 | 26.4 |
| 22 Oct 2024 | 1,004 | ±3.1 | Gongjung / Dailian | 42.6 | 3.9 | 1.2 | 19.2 | 6.4 | 4.6 | — | — | 2.2 | — | 6.0 | — | — | 5.2 | 8.7 | 23.4 |
| 12–14 Oct 2024 | 2,002 | ±2.2 | Jowon C&I / Straight News | 43.3 | 4.1 | — | 19.7 | 4.9 | 4.6 | — | 3.6 | 2.1 | — | 6.5 | 4.0 | — | 2.7 | 4.3 | 23.6 |
| 7–8 Oct 2024 | 1,000 | ±3.1 | Gongjung / Dailian | 40.5 | 2.9 | 2.0 | 21.4 | 6.3 | 4.1 | — | — | 1.2 | — | 7.5 | — | — | 5.9 | 8.1 | 19.1 |
| 4–5 Oct 2024 | 1,007 | ±3.1 | Flower Research | 35.1 | 2.0 | — | 15.4 | 5.7 | 5.0 | — | — | 2.4 | — | 5.1 | 2.1 | — | 2.1 | 24.9 | 19.7 |
| 28–30 Sep 2024 | 2,001 | ±2.2 | Jowon C&I / Straight News | 42.8 | 3.1 | — | 20.7 | 5.0 | 4.7 | — | 3.7 | 1.5 | — | 6.0 | 4.4 | — | 2.4 | 5.3 | 22.1 |
| 28–29 Sep 2024 | 1,002 | ±3.1 | Ace Research / Newsis | 41.2 | 3.1 | 1.6 | 19.3 | 2.9 | 3.8 | — | 1.6 | 2.1 | 4.3 | 7.1 | 4.5 | — | 0.8 | 7.7 | 21.9 |
| 24–26 Sep 2024 | 1,001 | ±3.1 | Gallup Korea | 25 | 2 | — | 15 | 1 | 2 | — | 1 | — | 2 | 4 | 3 | — | 4 | 40 | 10 |
| 23–24 Sep 2024 | 1,005 | ±3.1 | Gongjung / Dailian | 42.0 | 2.4 | 1.0 | 21.1 | 6.5 | 4.6 | — | — | 2.2 | — | 7.3 | — | — | 5.7 | 7.2 | 20.9 |
| 11–12 Sep 2024 | 1,002 | ±3.1 | Korea Research / MBC | 29 | 2 | 1 | 18 | 5 | 6 | 1 | 1 | 3 | — | 5 | 3 | — | 4 | 22 | 11 |
| 10–12 Sep 2024 | 2,004 | ±2.2 | Jowon C&I / Straight News | 44.5 | 2.9 | — | 22.0 | 4.7 | 3.2 | — | 3.6 | 1.3 | — | 6.3 | 4.4 | — | 2.0 | 5.0 | 22.5 |
| 10 Sep 2024 | 1,002 | ±3.1 | Gongjung / Dailian | 42.4 | 2.8 | 1.3 | 20.7 | 7.1 | 5.0 | — | — | 2.3 | — | 6.6 | — | — | 4.4 | 7.5 | 21.7 |
| 3–5 Sep 2024 | 1,001 | ±3.1 | Gallup Korea | 26 | 1 | — | 14 | 2 | 1 | — | — | 1 | 2 | 5 | 3 | — | 3 | 40 | 12 |
| 31 Aug-2 Sep 2024 | 2,003 | ±2.2 | Jowon C&I / Straight News | 42.1 | 3.1 | — | 20.9 | 3.7 | 3.3 | — | 4.1 | 1.5 | — | 6.2 | 5.9 | — | 2.2 | 7.0 | 21.2 |
| 26–27 Aug 2024 | 1,002 | ±3.1 | Gongjung / Dailian | 40.7 | 2.5 | 0.9 | 24.2 | 7.3 | 3.9 | — | — | 1.6 | — | 6.0 | — | — | 5.3 | 7.8 | 16.5 |
| 20–21 Aug 2024 | 1,004 | ±3.1 | KOPRA / Kihoilbo | 39.4 | 2.5 | 1.5 | 25.2 | 4.7 | 3.5 | — | 3.4 | — | — | 6.3 | 4.6 | — | 1.0 | 8.0 | 14.2 |
| 17–19 Aug 2024 | 2,006 | ±2.2 | Jowon C&I / Straight News | 43.2 | 3.0 | — | 25.6 | 3.6 | 3.5 | — | 3.2 | 1.6 | — | 4.7 | 4.7 | — | 2.3 | 4.7 | 17.6 |
| 12–13 Aug 2024 | 1,007 | ±3.1 | Media Tomato / News Tomato | 43.9 | 2.1 | 1.3 | 26.1 | 6.0 | 3.8 | — | — | — | — | 6.5 | 3.3 | — | 3.8 | 3.1 | 17.8 |
| 12–13 Aug 2024 | 1,006 | ±3.1 | Gongjung / Dailian | 28.5 | 4.9 | 5.4 | 19.8 | 7.4 | 6.2 | — | — | 3.3 | — | 8.7 | — | — | 8.7 | 7.1 | 8.7 |
| 9–10 Aug 2024 | 1,009 | ±3.1 | Flower Research | 36.1 | 1.9 | — | 17.9 | 5.2 | 4.7 | — | — | 1.7 | — | 5.1 | 3.1 | — | 1.1 | 23.3 | 18.2 |
| 3–5 Aug 2024 | 2,002 | ±2.2 | Jowon C&I / Straight News | 39.0 | 3.1 | — | 27.8 | 3.4 | 4.1 | — | 3.9 | 2.1 | — | 5.4 | 5.5 | — | 1.1 | 4.6 | 11.2 |
| 29–30 Jul 2024 | 1,009 | ±3.1 | Media Tomato / News Tomato | 42.7 | — | — | 33.4 | — | — | — | — | — | — | 7.5 | 4.4 | — | 8.1 | 3.9 | 9.3 |
| 29–30 Jul 2024 | 1,005 | ±3.1 | Gongjung / Dailian | 37.9 | 3.1 | — | 29.5 | 5.0 | 4.1 | — | — | 1.6 | — | 6.8 | 3.8 | — | 3.3 | 4.9 | 8.4 |
| 23–25 Jul 2024 | 1,001 | ±3.1 | Gallup Korea | 22 | — | — | 19 | 2 | 3 | — | 3 | 1 | — | 5 | 3 | — | 4 | 38 | 3 |
| 20–22 Jul 2024 | 4,029 | ±1.5 | Jowon C&I / Straight News | 38.5 | 2.9 | — | 26.9 | 5.0 | 3.2 | — | 5.8 | 1.4 | — | 6.1 | 5.1 | — | 1.3 | 3.8 | 11.6 |
| 7–8 Jul 2024 | 2,003 | ±2.2 | Embrain Public / YTN | 27 | 1 | — | 17 | 7 | 5 | 1 | — | 2 | — | 5 | 2 | 1 | 2 | 28 | 10 |
| 6–8 Jul 2024 | 2,008 | ±2.2 | Jowon C&I / Straight News | 38.2 | 3.5 | — | 24.6 | 3.6 | 3.9 | — | 6.9 | 1.8 | — | 6.8 | 4.7 | — | 1.5 | 4.7 | 13.6 |
| 5–6 Jul 2024 | 1,002 | ±3.1 | Flower Research | 34.3 | 1.9 | — | 18.5 | 5.9 | 4.5 | — | — | 1.8 | — | 5.8 | 2.2 | — | 2.0 | 23.1 | 15.8 |
| 2–4 Jul 2024 | 1,002 | ±3.1 | Gallup Korea | 23 | — | — | 17 | 3 | 3 | — | 2 | 1 | — | 5 | 2 | — | 5 | 38 | 6 |
| 1–2 Jul 2024 | 1,002 | ±3.1 | Gongjung / Dailian | 35.9 | 4.5 | — | 24.6 | 7.9 | 5.4 | — | — | 1.7 | — | 7.2 | 4.5 | — | 3.2 | 5.0 | 11.3 |
| 22–24 Jun 2024 | 2,006 | ±2.2 | Jowon C&I / Straight News | 40.1 | 3.0 | — | 21.6 | 4.2 | 3.9 | — | 6.4 | 1.3 | — | 7.7 | 5.3 | — | 1.8 | 4.5 | 18.5 |
| 17–18 Jun 2024 | 1,002 | ±3.1 | Gongjung / Dailian | 37.8 | 3.9 | — | 24.7 | 5.9 | 3.7 | — | — | 2.3 | — | 7.9 | 4.8 | — | 3.4 | 5.5 | 13.1 |
| 14–15 Jun 2024 | 1,001 | ±3.1 | Gallup Korea / News1 | 28 | — | — | 17 | 1 | 3 | 1 | 1 | 1 | — | 7 | 3 | — | 3 | 35 | 11 |
| 11–13 Jun 2024 | 1,000 | ±3.1 | Gallup Korea | 22 | 1 | — | 15 | 2 | 3 | — | 1 | 1 | — | 5 | 3 | — | 5 | 42 | 7 |
| 9–10 Jun 2024 | 2,005 | ±2.2 | Jowon C&I / Straight News | 40.7 | 2.3 | — | 23.3 | 4.3 | 3.7 | — | 4.5 | 1.8 | — | 6.8 | 5.3 | — | 1.8 | 5.3 | 17.4 |
| 3–4 Jun 2024 | 1,004 | ±3.1 | Gongjung / Dailian | 35.6 | 2.8 | — | 25.9 | 6.5 | 4.1 | — | — | 2.0 | — | 6.5 | 5.5 | — | 3.9 | 7.2 | 9.7 |
| 1–3 Jun 2024 | 2,005 | ±2.2 | Jowon C&I / Straight News | 41.0 | 2.1 | — | 22.0 | 4.0 | 4.4 | — | 5.0 | 1.8 | — | 8.0 | 5.4 | — | 1.7 | 4.6 | 19.0 |
| 28–30 May 2024 | 1,000 | ±3.1 | Research View / PSPD | 38 | 3 | 2 | 24 | 4 | 4 | 2 | — | 1 | — | 8 | 3 | 2 | 4 | 5 | 14 |
| 25–27 May 2024 | 2,004 | ±2.2 | Jowon C&I / Straight News | 39.6 | 2.5 | — | 22.8 | 3.9 | 4.4 | — | 4.6 | 1.8 | — | 7.5 | 6.3 | — | 1.5 | 5.1 | 16.8 |
| 20–21 May 2024 | 1,000 | ±3.1 | Gongjung / Dailian | 36.8 | 2.4 | — | 24.5 | 5.5 | 5.2 | — | — | 2.3 | — | 7.4 | 5.2 | — | 6.5 | 4.3 | 12.3 |
| 11–13 May 2024 | 2,002 | ±2.2 | Jowon C&I / Straight News | 38.6 | 2.6 | — | 25.1 | 3.9 | 4.2 | — | 4.6 | 1.6 | — | 7.7 | 4.1 | — | 1.4 | 6.1 | 13.5 |
| 7–9 May 2024 | 1,000 | ±3.1 | Gallup Korea | 23 | — | — | 17 | 2 | 3 | — | — | 2 | — | 7 | 3 | — | 6 | 38 | 7 |
| 6–7 May 2024 | 1,003 | ±3.1 | Gongjung / Dailian | 37.3 | 3.5 | — | 26.0 | 5.3 | 4.7 | — | — | 2.1 | — | 7.7 | 4.2 | — | 3.1 | 5.9 | 11.3 |
| 27–29 Apr 2024 | 2,006 | ±2.2 | Jowon C&I / Straight News | 39.3 | 3.7 | — | 21.9 | 4.5 | 4.7 | — | 5.0 | 1.6 | — | 8.1 | 5.7 | — | 1.8 | 4.2 | 17.4 |
| 16–18 Apr 2024 | 1,000 | ±3.1 | Gallup Korea | 24 | — | — | 15 | 1 | 3 | — | 2 | 1 | — | 7 | 3 | — | 5 | 39 | 9 |
| 13–15 Apr 2024 | 2,013 | ±2.2 | Jowon C&I / Straight News | 37.8 | — | — | 23.9 | — | — | — | — | 4.4 | — | 10.1 | 5.7 | — | 11.1 | 7.1 | 13.9 |
| 2–3 Apr 2024 | 1,002 | ±3.1 | Korea Research / MBC | 27 | 1 | — | 23 | 3 | 4 | 2 | 5 | 2 | — | 5 | 2 | 2 | 1 | 24 | 4 |
| 28–29 Mar 2024 | 1,004 | ±3.1 | Research&Research / Dong-a Ilbo | 31.5 | 4.3 | — | 21.8 | 5.9 | 6.7 | — | 4.1 | 1.5 | — | 6.2 | — | 3.9 | 2.7 | 11.3 | 9.7 |
| 28–29 Mar 2024 | 1,011 | ±3.1 | Gallup Korea / Seoul Economic Daily | 27 | — | — | 20 | 1 | 2 | — | 1 | — | — | 4 | 1 | 2 | 3 | 38 | 7 |
| 26–27 Mar 2024 | 1,001 | ±3.1 | Korea Research / MBC | 32 | 2 | — | 24 | 3 | 4 | 2 | 2 | 2 | — | 5 | 1 | 3 | 1 | 19 | 8 |
| 5–7 Mar 2024 | 1,000 | ±3.1 | Gallup Korea | 23 | 1 | — | 24 | 2 | 2 | — | 1 | — | — | 3 | 2 | 2 | 5 | 35 | 1 |
| 20 Feb 2024 | 1,012 | ±3.1 | Media Research / Newspim | 35.8 | 3.6 | — | 35.3 | 4.2 | 4.1 | — | — | — | — | — | 3.4 | 4.1 | 3.8 | 5.6 | 0.5 |
| 13–14 Feb 2024 | 1,004 | ±3.1 | Ace Research / Newsis | 37 | 5 | — | 34 | 3 | 4 | — | 3 | 2 | — | — | 4 | 4 | 1 | 3 | 3 |
| 6–7 Feb 2024 | 1,001 | ±3.1 | Korea Research / MBC | 26 | 4 | — | 23 | 5 | 5 | 3 | 3 | 2 | — | — | 3 | 3 | 1 | 21 | 3 |
| 3–4 Feb 2024 | 1,000 | ±3.1 | Metrix / Yonhapnews | 28 | 3 | — | 25 | 3 | 5 | — | — | 2 | — | — | 3 | 4 | 4 | 24 | 3 |
| 30 Jan–1 Feb 2024 | 1,000 | ±3.1 | Gallup Korea | 26 | 1 | — | 23 | 2 | 2 | — | — | — | — | — | 4 | 4 | 4 | 35 | 3 |
| 9–11 Jan 2024 | 1,002 | ±3.1 | Gallup Korea | 23 | 1 | — | 22 | 1 | 3 | — | — | 1 | — | — | 3 | 3 | 5 | 38 | 1 |
| 8–9 Jan 2024 | 1,002 | ±3.1 | Gongjung / Dailian | 35.8 | 5.1 | — | 32.7 | 4.0 | — | — | 1.8 | 1.9 | — | — | — | 5.1 | 1.7 | 11.9 | 3.2 |
| 6–7 Jan 2024 | 1,000 | ±3.1 | Metrix / Yonhapnews | 25 | 3 | — | 24 | 3 | 6 | — | — | 3 | — | — | 4 | 4 | 5 | 24 | 1 |
| 1–2 Jan 2024 | 1,002 | ±3.1 | Ace Research / Newsis | 39 | 4 | — | 35 | 4 | 3 | — | 2 | 1 | — | — | — | 4 | 4 | 5 | 4 |
| 30–31 Dec 2023 | 1,018 | ±3.1 | KStat Research / TV Chosun | 27 | 4 | — | 21 | 5 | 7 | — | 3 | 2 | — | — | — | 5 | 3 | 24 | 6 |
| 29–30 Dec 2023 | 1,005 | ±3.1 | Korea Research / MBC | 27 | 3 | — | 22 | 4 | 7 | 2 | 3 | 3 | — | — | 3 | 5 | 1 | 21 | 5 |
| 28–29 Dec 2023 | 1,017 | ±3.1 | Gallup Korea / JoongAngIlbo | 22 | 1 | — | 24 | 1 | 2 | 1 | 1 | 1 | — | — | 3 | 2 | 5 | 36 | 2 |
| 26–27 Dec 2023 | 1,000 | ±3.1 | Hankook Research / HankookIlbo | 23 | 3 | — | 21 | 5 | 6 | 3 | 3 | 2 | — | 2 | 2 | 4 | 3 | 26 | 2 |
| 25–26 Dec 2023 | 1,015 | ±3.1 | Gongjung / Dailian | 35.6 | 4.7 | — | 27.2 | 6.3 | — | — | 5.9 | 2.3 | — | — | — | 4.8 | 1.4 | 11.8 | 8.4 |
| 23–24 Dec 2023 | 1,024 | ±3.1 | Rnsearch / Asia Today | 36.9 | 2.5 | — | 35.8 | 2.8 | 3.3 | — | 1.4 | — | — | — | 4.2 | 4.3 | 1.8 | 6.9 | 1.1 |
| 5–7 Dec 2023 | 1,000 | ±3.1 | Gallup Korea | 19 | 2 | — | 16 | 2 | 4 | 1 | 2 | — | — | — | 2 | 3 | 5 | 43 | 3 |
| 7–9 Nov 2023 | 1,001 | ±3.1 | Gallup Korea | 21 | 2 | — | 13 | 4 | 4 | — | 1 | 2 | — | — | 3 | 2 | 4 | 44 | 8 |
| 10–12 Oct 2023 | 1,002 | ±3.1 | Gallup Korea | 22 | 1 | — | 14 | 4 | 3 | — | 1 | 2 | — | — | 1 | 1 | 6 | 46 | 8 |
| 5–7 Sep 2023 | 1,000 | ±3.1 | Gallup Korea | 19 | 2 | — | 12 | 2 | 3 | 1 | 2 | 2 | — | — | 1 | 3 | 5 | 48 | 7 |
| 30 May–1 Jun 2023 | 1,002 | ±3.1 | Gallup Korea | 22 | 1 | — | 11 | 4 | 5 | 1 | — | 2 | — | — | 1 | 2 | 5 | 46 | 11 |
| 11–13 Mar 2023 | 1,020 | ±3.1 | Kookmin Research Group, Ace Research / Newsis | 37.3 | — | — | 16.4 | 7.1 | 7.2 | 3.5 | 5.6 | 4.2 | — | — | — | 4.1 | 5.7 | 9.0 | 20.9 |
| 29 Feb–2 Mar 2023 | 1,001 | ±3.1 | Gallup Korea | 20 | — | — | 11 | 3 | 5 | 1 | 2 | 4 | — | — | 2 | 3 | 5 | 44 | 9 |
| 26–27 Jan 2023 | 1,006 | ±3.1 | Gallup Korea / Segye Ilbo | 24.6 | — | — | 11.1 | 2.7 | 4.9 | 3.8 | — | 6.9 | — | — | 1.4 | 2.1 | 4.8 | 37.7 | 13.5 |
| 1–2 Jan 2023 | 1,020 | ±3.1 | Rnsearch / Mewspim | 33.7 | 1.5 | — | 18.1 | 9.0 | 8.3 | 5.4 | — | 3.8 | — | — | — | 6.4 | 2.6 | 11.2 | 15.6 |
| 26–27 Dec 2022 | 1,015 | ±3.1 | Global Research / The Hankyoreh | 24.4 | 2.4 | 0.6 | 9.9 | 8.2 | 11.9 | 4.5 | — | 5.6 | — | — | 2.1 | 4.1 | 3.9 | 22.5 | 12.5 |
| 16–17 Dec 2022 | 1,016 | ±3.1 | Flower Research | 31.4 | 2.4 | — | 10.2 | 9.1 | — | — | 3.5 | 4.5 | — | — | — | 5.1 | 6.1 | 27.9 | 21.2 |
| 4–6 Dec 2022 | 1,030 | ±3.1 | Ace Research / Newsis | 37.3 | — | — | 18.6 | 7.9 | 7.4 | 8.0 | 3.3 | 4.1 | — | — | — | 5.2 | 1.0 | 7.3 | 18.7 |
| 4–5 Dec 2022 | 1,024 | ±3.1 | Rnsearch / Mewspim | 37.8 | 2.3 | — | 18.9 | 7.1 | 9.3 | 4.4 | — | 3.1 | — | — | — | 5.8 | 1.6 | 9.7 | 18.9 |
| 3–5 Dec 2022 | 1,002 | ±3.1 | Jowon C&I / Straight News | 37.0 | 3.3 | — | 19.1 | 9.8 | 8.2 | — | — | 3.9 | — | — | — | 6.9 | 5.5 | 6.1 | 17.9 |
| 29 Nov –1 Dec 2022 | 1,000 | ±3.1 | Gallup Korea | 23 | — | — | 10 | 2 | 4 | 2 | — | 3 | — | — | 2 | 3 | 6 | 44 | 13 |
| 5–7 Nov 2022 | 1,023 | ±3.1 | Rnsearch / Mewspim | 38.3 | 2.4 | — | 18.0 | 10.8 | 8.6 | 4.1 | — | 3.6 | — | — | — | 5.0 | 1.6 | 7.6 | 20.3 |
| 8–10 Oct 2022 | 1,021 | ±3.1 | Rnsearch / Mewspim | 41.1 | 3.2 | — | 17.1 | 10.8 | 7.3 | — | — | 4.1 | — | — | — | 6.0 | 3.3 | 7.0 | 24.0 |
| 10–12 Sep 2022 | 1,014 | ±3.1 | Rnsearch / Mewspim | 40.1 | 2.9 | — | 18.5 | 11.7 | 8.0 | — | — | 4.3 | — | — | — | 4.5 | 3.0 | 7.1 | 21.6 |
| 30 Aug–1 Sep 2022 | 1,000 | ±3.1 | Gallup Korea | 27 | — | — | 9 | 4 | 4 | 2 | — | 4 | — | — | 3 | 2 | 4 | 41 | 18 |
| 6–8 Aug 2022 | 1,025 | ±3.1 | Rnsearch / Mewspim | 39.6 | 3.4 | — | 12.8 | 13.3 | 8.3 | — | — | 3.8 | — | — | — | 8.2 | 3.0 | 7.6 | 26.3 |
| 9–12 Jul 2022 | 1,045 | ±3.0 | Rnsearch / Mewspim | 38.5 | 4.7 | — | 12.4 | 15.1 | 6.3 | — | — | 5.6 | — | — | — | 5.5 | 3.0 | 8.8 | 23.4 |
| 11–13 Jun 2022 | 1,025 | ±3.1 | Rnsearch / Mewspim | 29.3 | 5.6 | — | 9.4 | 23.9 | — | — | 3.5 | 6.9 | — | — | — | 5.0 | 4.4 | 6.2 | 5.4 |
| 7–9 Jun 2022 | 1,000 | ±3.1 | Gallup Korea | 15 | 4 | — | 4 | 10 | 5 | — | — | 6 | — | — | 1 | 3 | 4 | 46 | 5 |
| 29–31 Mar 2022 | 1,000 | ±3.1 | ResearchView | 28 | 2 | — | — | 13 | 7 | 4 | 10 | 10 | — | — | 5 | 7 | 7 | 5 | 15 |
| 9 Mar 2022 | 2022 election | 2022 election | 2022 election | 47.8 | — | — | — | — | — | — | — | — | — | — | — | — | 3.6 | 0.9 | 0.7 |

### Hypothetical polling
#### Lee Jae-myung vs. Han Dong-hoon

| Fieldwork date | Sample size | Margin of error | Polling firm | Lee Jae-myung | Han Dong-hoon | Lead |
| 12-14 Mar 2025 | 1,510 | ±2.5 | Realmeter / EKN | 51.8 | 18.6 | 33.2 |
| 26–28 Feb 2025 | 1,506 | ±2.5 | Realmeter / EKN | 49.7 | 20.3 | 29.4 |
| 26–27 Feb 2025 | 1,004 | ±3.1 | Flower Research | 46.7 | 17.4 | 29.3 |
| 23–24 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 51.4 | 21.7 | 29.7 |
| 16–17 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 50.8 | 23.8 | 27.0 |
| 9–10 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 48.6 | 24.2 | 24.4 |
| 8–10 Feb 2025 | 2,001 | ±2.2 | Jowon C&I / Straight News | 45.3 | 19.0 | 26.3 |
| 3–4 Feb 2025 | 1,007 | ±3.1 | Gongjung / Dailian | 45.8 | 24.1 | 21.7 |
| 2–3 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 51.6 | 24.2 | 27.4 |
| 31 Jan–1 Feb 2025 | 1,004 | ±3.1 | Gallup Korea / Segye Ilbo | 47 | 34 | 13 |
| 24–26 Jan 2025 | 1,000 | ±3.1 | Hankook Researach / KBS | 46 | 28 | 18 |
| 24–25 Jan 2025 | 2,001 | ±2.2 | KOPRA / Asia Today | 45 | 34 | 11 |
| 23–25 Jan 2025 | 1,004 | ±3.1 | Ipsos / SBS | 41 | 22 | 19 |
| 22–23 Jan 2025 | 1,003 | ±3.1 | Embrain Public / YTN | 39 | 33 | 6 |
| 29–31 Dec 2024 | 1,014 | ±3.1 | Next Researach / Maeil Business | 46 | 23 | 23 |
| 22 Oct 2024 | 1,004 | ±3.1 | Gongjung / Dailian | 53.6 | 30.2 | 23.4 |
| 7–8 Oct 2024 | 1,000 | ±3.1 | Gongjung / Dailian | 50.5 | 32.5 | 18.0 |
| 23–24 Sep 2024 | 1,005 | ±3.1 | Gongjung / Dailian | 51.9 | 32.8 | 19.1 |
| 23–24 Aug 2024 | 1,010 | ±3.1 | Flower Research | 45.6 | 28.0 | 17.6 |
| 19–20 Aug 2024 | 1,008 | ±3.1 | Media Tomato / News Tomato | 54.6 | 36.0 | 18.6 |
| 17–19 Aug 2024 | 1,025 | ±3.1 | Hangil Research / Kukinews | 50.7 | 30.4 | 20.3 |
| 30–31 Mar 2024 | 1,000 | ±3.1 | Metrix / Yonhapnews | 37 | 31 | 6 |
| 18–19 Mar 2024 | 1,001 | ±3.1 | Gongjung / Dailian | 45.3 | 37.6 | 7.7 |
| 4–5 Mar 2024 | 1,000 | ±3.1 | Gongjung / Dailian | 42.3 | 43.2 | 0.9 |
| 2–3 Mar 2024 | 1,000 | ±3.1 | Metrix / Yonhapnews | 30 | 33 | 3 |
| 22–23 Feb 2024 | 1,015 | ±3.1 | Gallup Korea / Sedaily | 43 | 46 | 3 |
| 19–20 Feb 2024 | 1,001 | ±3.1 | Gongjung / Dailian | 40.4 | 46.6 | 6.2 |
| 5–6 Feb 2024 | 1,001 | ±3.1 | Gongjung / Dailian | 42.1 | 47.8 | 5.7 |
| 3–4 Feb 2024 | 1,000 | ±3.1 | Metrix / Yonhapnews | 36 | 36 | Tie |
| 25–26 Jan 2024 | 1,011 | ±3.1 | Gallup Korea / Sedaily | 45 | 42 | 3 |
| 22–23 Jan 2024 | 1,004 | ±3.1 | Gongjung / Dailian | 45.9 | 42.8 | 3.1 |
| 8–9 Jan 2024 | 1,002 | ±3.1 | Gongjung / Dailian | 45.5 | 43.1 | 2.4 |
| 6–7 Jan 2024 | 1,000 | ±3.1 | Metrix / Yonhapnews | 36 | 36 | Tie |
| 30–31 Dec 2023 | 1,018 | ±3.1 | KStat Research / TV Chosun | 38 | 38 | Tie |
| 20–21 Dec 2023 | 1,006 | ±3.1 | KOPRA | 41 | 45 | 4 |

#### Lee Jae-myung vs. Kim Moon-soo

| Fieldwork date | Sample size | Margin of error | Polling firm | Lee Jae-myung | Kim Moon-soo | Lead |
| 12-14 Mar 2025 | 1,510 | ±2.5 | Realmeter / EKN | 51.7 | 30.7 | 21.0 |
| 12 Mar 2025 | 1,000 | ±3.1 | WinG Korea / Voice of Seoul | 48.7 | 42.7 | 6.0 |
| 8-10 Mar 2025 | 1,022 | ±3.1 | Hangil Research / Kukinews | 47.2 | 34.0 | 13.2 |
| 26–28 Feb 2025 | 1,506 | ±2.5 | Realmeter / EKN | 50.0 | 31.6 | 18.4 |
| 26–27 Feb 2025 | 1,004 | ±3.1 | Flower Research | 46.6 | 22.5 | 24.1 |
| 23–24 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 52.6 | 35.5 | 17.1 |
| 16–17 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 50.8 | 36.6 | 14.2 |
| 13–14 Feb 2025 | 1,000 | ±3.1 | Realmeter / EKN | 46.3 | 31.8 | 14.5 |
| 12 Feb 2025 | 1,023 | ±3.1 | WinG Korea / Voice of Seoul | 45.8 | 46.9 | 1.1 |
| 9–10 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 50.0 | 37.8 | 12.2 |
| 8–10 Feb 2025 | 2,001 | ±2.2 | Jowon C&I / Straight News | 46.1 | 34.2 | 11.9 |
| 5 Feb 2025 | 1,017 | ±3.1 | WinG Korea / Voice of Seoul | 46.4 | 45.3 | 1.1 |
| 3–4 Feb 2025 | 1,007 | ±3.1 | Gongjung / Dailian | 46.6 | 38.1 | 8.5 |
| 2–3 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 53.1 | 34.7 | 18.4 |
| 31 Jan–1 Feb 2025 | 1,004 | ±3.1 | Gallup Korea / Segye Ilbo | 50 | 37 | 13 |
| 24–26 Jan 2025 | 1,000 | ±3.1 | Hankook Researach / KBS | 47 | 35 | 12 |
| 24–25 Jan 2025 | 2,001 | ±2.2 | KOPRA / Asia Today | 46 | 45 | 1 |
| 23–25 Jan 2025 | 1,004 | ±3.1 | Ipsos / SBS | 42 | 28 | 14 |
| 22–23 Jan 2025 | 1,003 | ±3.1 | Embrain Public / YTN | 42 | 38 | 4 |
| 15–16 Jan 2025 | 1,039 | ±3.0 | WinG Korea / Voice of Seoul | 45.4 | 43.5 | 1.9 |

#### Lee Jae-myung vs. Hong Joon-pyo

| Fieldwork date | Sample size | Margin of error | Polling firm | Lee Jae-myung | Hong Joon-pyo | Lead |
| 12-14 Mar 2025 | 1,510 | ±2.5 | Realmeter / EKN | 52.3 | 25.0 | 27.3 |
| 8-10 Mar 2025 | 1,022 | ±3.1 | Hangil Research / Kukinews | 46.8 | 24.9 | 21.9 |
| 26–28 Feb 2025 | 1,506 | ±2.5 | Realmeter / EKN | 50.0 | 24.2 | 25.8 |
| 26–27 Feb 2025 | 1,004 | ±3.1 | Flower Research | 47.6 | 23.5 | 24.1 |
| 23–24 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 51.2 | 29.6 | 21.6 |
| 16–17 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 50.5 | 29.0 | 21.5 |
| 13–14 Feb 2025 | 1,000 | ±3.1 | Realmeter / EKN | 46.9 | 26.2 | 20.7 |
| 9–10 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 49.4 | 33.9 | 15.5 |
| 8–10 Feb 2025 | 2,001 | ±2.2 | Jowon C&I / Straight News | 45.6 | 25.5 | 20.1 |
| 3–4 Feb 2025 | 1,007 | ±3.1 | Gongjung / Dailian | 47.0 | 31.0 | 16.0 |
| 2–3 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 53.4 | 30.6 | 22.8 |
| 31 Jan–1 Feb 2025 | 1,004 | ±3.1 | Gallup Korea / Segye Ilbo | 47 | 39 | 8 |
| 24–26 Jan 2025 | 1,000 | ±3.1 | Hankook Researach / KBS | 46 | 36 | 10 |
| 24–25 Jan 2025 | 2,001 | ±2.2 | KOPRA / Asia Today | 46 | 42 | 4 |
| 23–25 Jan 2025 | 1,004 | ±3.1 | Ipsos / SBS | 41 | 27 | 14 |
| 22–23 Jan 2025 | 1,003 | ±3.1 | Embrain Public / YTN | 41 | 41 | Tie |
| 29–31 Dec 2024 | 1,014 | ±3.1 | Next Researach / Maeil Business | 47 | 28 | 19 |
| 28–29 Dec 2024 | 1,000 | ±3.1 | EveryResearch / Newsspirit | 49.6 | 23.5 | 26.1 |

#### Lee Jae-myung vs. Oh Se-hoon

| Fieldwork date | Sample size | Margin of error | Polling firm | Lee Jae-myung | Oh Se-hoon | Lead |
| 12-14 Mar 2025 | 1,510 | ±2.5 | Realmeter / EKN | 51.8 | 25.6 | 26.2 |
| 8-10 Mar 2025 | 1,022 | ±3.1 | Hangil Research / Kukinews | 47.9 | 23.8 | 24.1 |
| 26–28 Feb 2025 | 1,506 | ±2.5 | Realmeter / EKN | 50.3 | 23.5 | 26.8 |
| 26–27 Feb 2025 | 1,004 | ±3.1 | Flower Research | 46.8 | 24.0 | 22.8 |
| 23–24 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 52.5 | 29.7 | 22.8 |
| 16–17 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 51.3 | 31.7 | 19.6 |
| 13–14 Feb 2025 | 1,000 | ±3.1 | Realmeter / EKN | 46.6 | 29.0 | 17.6 |
| 9–10 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 49.7 | 34.9 | 14.8 |
| 8–10 Feb 2025 | 2,001 | ±2.2 | Jowon C&I / Straight News | 45.0 | 27.6 | 17.4 |
| 3–4 Feb 2025 | 1,007 | ±3.1 | Gongjung / Dailian | 46.9 | 32.1 | 14.8 |
| 2–3 Feb 2025 | 1,000 | ±3.1 | Researchview / KPI News | 53.2 | 31.8 | 21.4 |
| 31 Jan–1 Feb 2025 | 1,004 | ±3.1 | Gallup Korea / Segye Ilbo | 47 | 43 | 4 |
| 24–26 Jan 2025 | 1,000 | ±3.1 | Hankook Researach / KBS | 45 | 36 | 9 |
| 24–25 Jan 2025 | 2,001 | ±2.2 | KOPRA / Asia Today | 46 | 43 | 3 |
| 23–25 Jan 2025 | 1,004 | ±3.1 | Ipsos / SBS | 42 | 26 | 16 |
| 22–23 Jan 2025 | 1,003 | ±3.1 | Embrain Public / YTN | 41 | 41 | Tie |
| 29–31 Dec 2024 | 1,014 | ±3.1 | Next Researach / Maeil Business | 44 | 30 | 14 |
| 28–29 Dec 2024 | 1,000 | ±3.1 | EveryResearch / Newsspirit | 50.2 | 26.7 | 23.5 |