| Buk, Ulsan | |
| Type: | Single-member |
| Constituency Link: | Buk, Ulsan (constituency) |
| Parl Name: | National Assembly |
| District Label: | District(s) |
| District: | Buk District, Ulsan |
| Region Label: | Region |
| Region: | Ulsan |
| Electorate: | 176,056 |
| Year: | 2000 |
| Elects Howmany: | 1 |
| Seats: | 1 |
| Party Label: | Party |
| Party: | Progressive Party |
| Members Label: | Member(s) |
| Members: | Yoon Jong-oh |
| Previous: | Ulju, Ulsan Jung, Ulsan |
Buk, Ulsan is a constituency of the National Assembly of South Korea. The constituency consists of Buk District, Ulsan. As of 2024, 176,056 eligible voters were registered in the constituency.
The constituency was established ahead of the 2000 South Korean legislative election from the former Ulju, Ulsan and Jung, Ulsan constituencies.
Unlike its neighboring constituencies, Buk, Ulsan is considered a swing constituency as it has elected representatives from progressive, liberal, and conservative parties. This swing characteristic can partially be attributed to the fact that a substantial portion of the constituency's voters are blue collar workers, who traditionally have a stronger tendency to vote for progressive and liberal parties.[1]
The constituency encompasses the neighborhoods of Nongso-dong, Gangdong-dong, Hyomun-dong, Songjeong-dong, Yangjeong-dong, and Yeompo-dong.
| Election | Member | Party | Dates | Notes | ||
|---|---|---|---|---|---|---|
| 2000 | Yoon Doo-hwan | Grand National | 2000-2004 | |||
| 2004 | Cho Seung-soo | Democratic Labor | 2004-2005 | Lost seat for illegal advertising before the election | ||
| 2005 by-election | Yoon Doo-hwan | Grand National | 2005-2009 | Lost seat for illegally receiving campaign funds | ||
| 2008 | ||||||
| 2009 by-election | Cho Seung-soo | New Progressive | 2009-2012 | |||
| 2012 | Park Dae-dong | Saenuri | 2012-2016 | |||
| 2016 | Yoon Jong-oh | Independent[2] | 2016-2017 | |||
| 2018 by-election | Lee Sang-heon | Democratic | 2018-present | Left the Democratic Party on February 28, 2024 | ||
| 2020 | ||||||
| 2024 | Yoon Jong-oh | Progressive | 2024-present | The Progressive Party's only constituency seat | ||