# Changwon Seongsan

Changwon Seongsan (Korean: 창원시 성산구) is a constituency of the National Assembly of South Korea. The constituency consists of Seongsan, Changwon, South Gyeongsang Province. As of 2024, 208,594 eligible voters were registered in the constituency. The constituency was organized into its current form in 2012 from the Changwon B constituency.

## List of members of the National Assembly

| Election | Member | Party | Dates | Notes |
| 2012 | Kang Gi-yun | Saenuri | 2012–2016 | |
| 2016 | Roh Hoe-chan | Justice | 2016–2018 | Leader of the New Progressive Party (2008–2010); Floor leader of the Justice Party (2016–2018) |
| 2019 by-election | Yeo Yeong-gug | Justice | 2019–2020 | |
| 2020 | Kang Gi-yun | United Future | 2020–2024 | |
| 2024 | Huh Sung-moo | Democratic | 2024–present | |

## Election results
### 2024

Legislative Election 2024: Changwon Seongsan :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Huh Sung-moo | 67,489 | 46.38 | 30.56 |
| | People Power | Kang Gi-yun | 66,507 | 45.70 | 1.6 |
| | Green Justice | Yeo Yeong-gug | 11,511 | 7.91 | 26.98 |
| Rejected ballots | Rejected ballots | Rejected ballots | 1,580 | – | |
| Turnout | Turnout | Turnout | 147,087 | 70.51 | 1.69 |
| Registered electors | Registered electors | Registered electors | 208,594 | | |
| | Democratic gain from People Power | Democratic gain from People Power | Swing | | |

### 2020

Legislative Election 2020: Changwon Seongsan :
| Party | Party | Candidate | Votes | % | ±% |
| | United Future | Kang Gi-yun | 61,782 | 47.30 | +2.09 |
| | Justice | Yeo Yeong-gug | 45,567 | 34.89 | −10.86 |
| | Democratic | Lee Heung-seok | 20,662 | 15.82 | new |
| | Minjung | Seok Yeong-cheol | 1,330 | 1.01 | −2.78 |
| | National Revolutionary | Cho Gyu-pil | 723 | 0.55 | new |
| | Minsaeng | Koo Myeong-hoe | 838 | 0.9 | new |
| Rejected ballots | Rejected ballots | Rejected ballots | 1,368 | – | |
| Turnout | Turnout | Turnout | 131,968 | 72.2 | +21.0 |
| Registered electors | Registered electors | Registered electors | 182,830 | | |
| | United Future gain from Justice | United Future gain from Justice | Swing | | |

### 2019 (by-election)

By-election 2019: Changwon Seongsan :
| Party | Party | Candidate | Votes | % | ±% |
| | Justice | Yeo Yeong-gug | 42,663 | 45.8 | −5.7 |
| | Liberty Korea | Kang Gi-yun | 42,159 | 45.2 | +5.0 |
| | Minjung | Son Seok-hyung | 3,540 | 3.8 | new |
| | Bareunmirae | Lee Jae-hwan | 3,334 | 3.6 | −4.7 |
| | Patriots' | Jin Soon-jung | 838 | 0.9 | new |
| | Independent | Kim Jong-seo | 706 | 0.8 | new |
| Rejected ballots | Rejected ballots | Rejected ballots | 873 | – | |
| Turnout | Turnout | Turnout | 94,113 | 51.2 | −14.9 |
| Registered electors | Registered electors | Registered electors | 183,934 | | |
| | Justice hold | Justice hold | Swing | | |

### 2016

Legislative Election 2016: Changwon Seongsan :
| Party | Party | Candidate | Votes | % | ±% |
| | Justice | Roh Hoe-chan | 61,897 | 51.5 | new |
| | Saenuri | Kang Gi-yun | 48,336 | 40.2 | −8.8 |
| | People | Lee Jae-hwan | 9,949 | 8.3 | new |
| Rejected ballots | Rejected ballots | Rejected ballots | 1,592 | – | – |
| Turnout | Turnout | Turnout | 121,774 | 66.1 | +7.8 |
| Registered electors | Registered electors | Registered electors | 184,105 | | |
| | Justice gain from Saenuri | Justice gain from Saenuri | Swing | | |

### 2012

Legislative Election 2012: Changwon Seongsan :
| Party | Party | Candidate | Votes | % | ±% |
| | Saenuri | Kang Gi-yun | 52,502 | 49.0 | new |
| | Unified Progressive | Son Seok-hyung | 46,924 | 43.8 | new |
| | New Progressive | Kim Chang-geun | 7,630 | 7.2 | new |
| Rejected ballots | Rejected ballots | Rejected ballots | 865 | – | – |
| Turnout | Turnout | Turnout | 107,921 | 58.3 | |
| Registered electors | Registered electors | Registered electors | 185,166 | | |
| | Saenuri win (new seat) | Saenuri win (new seat) | Saenuri win (new seat) | Saenuri win (new seat) | Saenuri win (new seat) |