Legislative elections were held in

South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed ...

on April 15, 2004. In the 17th election for the

National Assembly In politics, a national assembly is either a unicameral legislature, the lower house of a bicameral legislature, or both houses of a bicameral legislature together. In the English language it generally means "an assembly composed of the repre ...

, voters elected 299 members of the legislature. The newly formed

Uri Party The Yeollin Uri Party (), generally abbreviated to Uri Party (), was the ruling political party in South Korea from 2003–2007. It had a liberal political ideology in order to support then President Roh Moo-hyun. Chung Sye Kyun was the last le ...

and other parties supporting President

Roh Moo-hyun Roh Moo-hyun (; ; 1 September 1946 – 23 May 2009) was a South Korean politician and lawyer who served as the ninth president of South Korea between 2003 and 2008. Roh's pre-presidential political career was focused on human rights advocacy for ...

, who was

impeached Impeachment is the process by which a legislative body or other legally constituted tribunal initiates charges against a public official for misconduct. It may be understood as a unique process involving both political and legal elements. In ...

by the outgoing National Assembly, won a majority of seats. This was the first time a centre-left liberal party won a majority in the National Assembly.

Political parties

The newly formed liberal

(''Uri-dang'' or ''Our Party'') gained support through its opposition to the impeachment of President Roh. It won 32 out of 49 seats in

Seoul Seoul (; ; ), officially known as the Seoul Special City, is the capital and largest metropolis of South Korea.Before 1972, Seoul was the ''de jure'' capital of the Democratic People's Republic of Korea (North Korea) as stated iArticle 103 ...

, 44 out of 62 in

Incheon Incheon (; ; or Inch'ŏn; literally "kind river"), formerly Jemulpo or Chemulp'o (제물포) until the period after 1910, officially the Incheon Metropolitan City (인천광역시, 仁川廣域市), is a city located in northwestern South Kore ...

and

Gyeonggi Gyeonggi-do (, ) is the most populous province in South Korea. Its name, ''Gyeonggi'', means "京 (the capital) and 畿 (the surrounding area)". Thus, ''Gyeonggi-do'' can be translated as "Seoul and the surrounding areas of Seoul". Seoul, the na ...

, confirming that a majority of voters supported the President Roh. The conservative

Grand National Party The Liberty Korea Party () was a conservative political party in South Korea that was described variously as right-wing, right-wing populist, or far-right. Until February 2017, it was known as the Saenuri Party (), and before that as the Hanna ...

, which supported the impeachment of President Roh, suffered a loss of support, but won a majority in

North Gyeongsang North Gyeongsang Province ( ko, 경상북도, translit=Gyeongsangbuk-do, ) is a province in eastern South Korea. The province was formed in 1896 from the northern half of the former Gyeongsang province, and remained a province of Korea until the ...

and

South Gyeongsang South Gyeongsang Province ( ko, 경상남도, translit=Gyeongsangnam-do, ) is a province in the southeast of South Korea. The provincial capital is at Changwon. It is adjacent to the major metropolitan center and port of Busan. The UNESCO World ...

regions and retained the 100 seats necessary to block constitutional changes. The progressive, socialist Democratic Labor Party got 13.03% of vote share, but won only 10 out of 299 seats due to the

FPTP In a first-past-the-post electoral system (FPTP or FPP), formally called single-member plurality voting (SMP) when used in single-member districts or informally choose-one voting in contrast to ranked voting, or score voting, voters cast their ...

system. However this was considered as a great triumph considering that political landscape of South Korea is traditionally anti-communist and against left-wing policies. DLP also won two FPTP seats in

Ulsan Ulsan (), officially the Ulsan Metropolitan City is South Korea's seventh-largest metropolitan city and the eighth-largest city overall, with a population of over 1.1 million inhabitants. It is located in the south-east of the country, neighboring ...

based on the

Hyundai Hyundai is a South Korean industrial conglomerate ("chaebol"), which was restructured into the following groups: * Hyundai Group, parts of the former conglomerate which have not been divested ** Hyundai Mobis, Korean car parts company ** Hyundai ...

labor union. The Millennium Democratic Party, formerly the major liberal party, was the second-largest party prior to the election but sustained the biggest loss in the backlash following its leading role in the impeachment of Roh, as much of its support shifted to the Uri Party. The

United Liberal Democrats The United Liberal Democrats ( ko, 자유민주연합, Yayuminjuyeonhab, Liberal Democratic Union, ULD) was a right-wing conservative political party in South Korea, whose support mostly came from the North Chungcheong and South Chungcheong regi ...

, a conservative regional party based on

North Chungcheong North Chungcheong Province ( ko, 충청북도, ''Chungcheongbuk-do''), also known as Chungbuk, is a province of South Korea. North Chungcheong has a population of 1,578,934 (2014) and has a geographic area of located in the Hoseo region in the s ...

and

South Chungcheong South Chungcheong Province ( ko, 충청남도, ''Chungcheongnam-do''), also known as Chungnam, is a province of South Korea. South Chungcheong has a population of 2,059,871 (2014) and has a geographic area of 8,204 km2 (3,168 sq mi) located in ...

regions, lost support since its leader,

Kim Jong-pil Kim Jong-pil (; ; January 7, 1926 – June 23, 2018), also known colloquially as JP, was a South Korean politician and the founder/first director of the Korean Central Intelligence Agency (KCIA, now the National Intelligence Service). He s ...

, did not contest the last presidential election.

Results

By region

Notes

{{South Korean elections Legislative elections in South Korea

Parliamentary elections A general election is a political voting election where generally all or most members of a given political body are chosen. These are usually held for a nation, state, or territory's primary legislative body, and are different from by-elections ( ...

Parliamentary A parliamentary system, or parliamentarian democracy, is a system of democracy, democratic government, governance of a sovereign state, state (or subordinate entity) where the Executive (government), executive derives its democratic legitimacy ...