What type of government does South Korea have?

South Korea is a presidential constitutional republic. The president holds executive power and is directly elected for a single five-year term. The unicameral National Assembly handles legislation.

Who is the current president of South Korea?

Lee Jae-myung of the Democratic Party became President of South Korea in 2025 after a special election following the impeachment and removal of Yoon Suk-yeol.

What happened with Yoon Suk-yeol's impeachment?

President Yoon Suk-yeol was impeached by the National Assembly in December 2024 after his brief and controversial declaration of martial law. The Constitutional Court upheld the impeachment, removing him from office.

What are the main political parties in South Korea?

The two dominant parties are the Democratic Party (liberal, centre-left) and the People Power Party (conservative). South Korean parties frequently rebrand, merge, and split.

Can the South Korean president be re-elected?

No. The South Korean president serves a single five-year term and is constitutionally barred from re-election. This was designed to prevent authoritarian concentration of power.

Who leads South Korea?

Key political offices in South Korea include President of South Korea. These offices shape how executive, legislative, and judicial authority is exercised in the country.

Asia

South Korea Political System & Government Explained

country in East Asia

Wikimedia Commons image of South Korea.
UN Office for the Coordination of Humanitarian Affairs (OCHA) · CC BY 3.0 · Source

Quick Facts

Population: approximately 51.5 million
Seoul is the capital of this presidential system
91 political parties recorded
1 political office tracked

Capital

Seoul

Government

presidential system

Population

51.5 million

System Snapshot

The fastest way to understand how authority is arranged before you dive into timelines and entities.

Government Type: presidential system

Dig Deeper

Go beyond the overview and trace how power actually moves through South Korea.

Party competition

Browse 91 connected parties and follow their role in the system.

Institutions and offices

Explore the 1 institutions and offices where authority is formally exercised.

Power Profile

System

presidential system

Role

Presidential system

Power level

High

Elected executive authority

Selection

Elected

Executive centralizationHigh

Executive power concentrated in the elected president

Democratic participationHigh

Direct election of head of state and legislature

Power distributionModerate–High

Separated across executive, legislative, and judicial branches

Derived from system type and role classification

Position in System

South Korea operates under a presidential system with clear separation of powers. The president holds concentrated executive authority while the legislature and judiciary serve as independent branches, creating a system of checks and balances.

At a Glance

Governed from Seoul, South Korea is a presidential system in Asia. With a population of approximately 51.5 million, it occupies a distinct place in the region's political landscape.

South Korea operates under a presidential system in which the president serves as both head of state and head of government. That creates a strong executive, but legislatures and courts still shape how far presidential power can go in practice.

South Korea's political landscape includes 91 political parties and 1 office.

Instant Answer

Verdict: South Korea is a presidential republic where the president serves a single five-year term and cannot be re-elected.

South Korea is a presidential constitutional republic. The president is both head of state and head of government, serving a single five-year term with no re-election. Lee Jae-myung of the Democratic Party became president in 2025 following the impeachment and removal of Yoon Suk-yeol. The National Assembly is a unicameral legislature with 300 seats.

This page covers South Korea's presidential system, the political crisis following Yoon's impeachment, key parties, and the country's democratic evolution.

Power Snapshot

South Korea maintains one of the world's largest and most technologically advanced militaries, driven by the existential threat from North Korea.

South Korea

Military Strength: Very High
Defense Budget: ~$48 billion
Active Personnel: ~500,000
Global Influence: Medium

Key insight: South Korea maintains one of the world's largest and best-equipped militaries, driven by the ongoing threat from North Korea.

Defense spending uses SIPRI-backed 2024 estimates; personnel uses IISS-backed counts.

Keep Exploring

Lee Jae-myung

See the profile of South Korea's current president.

People Power Party

Explore South Korea's main conservative party.

South Korean Elections

Track South Korean presidential and National Assembly elections.

South Korea Political System

See how the presidency, National Assembly, and judiciary interact.

Political Parties

Advancement Unification Party Bareun Party Bareunmirae Party Basic Income Party Creative Korea Party Dawn of Liberty Democratic Alliance of Korea Democratic Justice Party Democratic Korea Party Democratic Labor Party Democratic Nationalist Party Democratic Party Democratic Party of Korea Democratic Party (South Korea, 1990)Democratic Peace Party Democratic People's Party (South Korea)Democratic-Republican Party Evergreen Korea Party Federation for Korean National Independence Future Democratic Party Future Hope Alliance Future Korea Party Grand National Unity Party Hankyoreh Democratic Party Hope of Korea Justice Party Korea Democratic Party Korea Nationalist Party Korea Vision Party Korean Economic Party Korean Independence Party Korean National Party Labor Party Liberal Party Liberty Korea Party Liberty Unification Party Livelihood Party Minjoo Party Mirae Party National Association National Congress for New Politics National Revolutionary Dividends Party New Alternatives New Conservative Party New Democratic Party New Democratic-Republican Party New Democratic Union Party New Future Democratic Party New Korea and Democratic Party New Korea Party New People's Party New Politics Party New Progressive Party New Reform Party New Wave Onward for Future 4.0 Open Democrats Our Republican Party Peace United Family Party People First Party People Future Party People Party People Power Party People's Democracy Party People's Participation Party People's United Party Pine Tree Party Popular Party Pro-Park New Party Progressive Party Real Democratic Party Rebuilding Korea Party Reunification Democratic Party Saenuri Party Social Democratic Party Socialist Party Socialist Revolutionary Workers' Party The Hannara Party The People's Party Together Citizens' Party Transition Korea Unification National Party Unified Progressive Party United Democratic Party United Korea Party United Liberal Democrats United New Democratic Party United Socialist Party of Korea Uri Party Womens' Party Workers’ Party of South Korea

Learn More

Wikipedia Wikidata

Frequently Asked Questions

What type of government does South Korea have?: South Korea is a presidential constitutional republic. The president holds executive power and is directly elected for a single five-year term. The unicameral National Assembly handles legislation.
Who is the current president of South Korea?: Lee Jae-myung of the Democratic Party became President of South Korea in 2025 after a special election following the impeachment and removal of Yoon Suk-yeol.
What happened with Yoon Suk-yeol's impeachment?: President Yoon Suk-yeol was impeached by the National Assembly in December 2024 after his brief and controversial declaration of martial law. The Constitutional Court upheld the impeachment, removing him from office.
What are the main political parties in South Korea?: The two dominant parties are the Democratic Party (liberal, centre-left) and the People Power Party (conservative). South Korean parties frequently rebrand, merge, and split.
Can the South Korean president be re-elected?: No. The South Korean president serves a single five-year term and is constitutionally barred from re-election. This was designed to prevent authoritarian concentration of power.
Who leads South Korea?: Key political offices in South Korea include President of South Korea. These offices shape how executive, legislative, and judicial authority is exercised in the country.

Connections

Parties

party

Advancement Unification Party

2008–2012 political party in South Korea

South Korea Political System & Government Explained

Quick Facts

System Snapshot

Dig Deeper

Party competition

Institutions and offices

Power Profile

Position in System

At a Glance

Power Snapshot

South Korea

Keep Exploring

Political Parties

Explore

Government

Political System

Parties

Offices

Politicians

Learn More

Frequently Asked Questions

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Connections

Parties

Advancement Unification Party

Bareun Party

Bareunmirae Party

Basic Income Party

Creative Korea Party

Dawn of Liberty

Democratic Alliance of Korea

Democratic Justice Party

Democratic Korea Party

Democratic Labor Party

Democratic Nationalist Party

Democratic Party

Democratic Party of Korea

Democratic Party (South Korea, 1990)

Democratic Peace Party

Democratic People's Party (South Korea)

Democratic-Republican Party

Evergreen Korea Party

Federation for Korean National Independence

Future Democratic Party

Future Hope Alliance

Future Korea Party

Grand National Unity Party

Hankyoreh Democratic Party

Hope of Korea

Justice Party

Korea Democratic Party

Korea Nationalist Party

Korea Vision Party

Korean Economic Party

Korean Independence Party

Korean National Party

Labor Party

Liberal Party

Liberty Korea Party

Liberty Unification Party

Livelihood Party

Minjoo Party

Mirae Party

National Association

National Congress for New Politics

National Revolutionary Dividends Party

New Alternatives

New Conservative Party

New Democratic Party

New Democratic-Republican Party

New Democratic Union Party

New Future Democratic Party

New Korea and Democratic Party

New Korea Party

New People's Party

New Politics Party