Country Profile: Korea, South

South Korea, officially known as the Republic of Korea (ROK), is situated in Eastern Asia on the southern half of the Korean Peninsula, bordered by the Sea of Japan and the Yellow Sea. With a population exceeding 51 million, the country boasts a vibrant economy characterized by its technological advancements and strong manufacturing, particularly in the sectors of semiconductors and automobiles. Governed as a presidential republic, South Korea has undergone significant political changes since its independence in 1945, evolving into a mature democracy while facing ongoing tensions with North Korea.

Geography

South Korea covers an area of 99,720 sq km, slightly smaller than Pennsylvania and characterized by mostly hilly and mountainous terrain with wide coastal plains. The nation enjoys a temperate climate, with heavier rainfall in the summer and cold winters. Its strategic location on the Korea Strait is complemented by a coastline of 2,413 km and 237 km of land borders with North Korea. Natural resources include coal, tungsten, and hydropower potential, among others.

Elevation: Highest point Halla-san at 1,950 m.
Natural hazards: Occasional typhoons and low-level seismic activity.
Forest cover: Approximately 64.4% of land area.
Urbanization rate: 81.5% of the population resides in urban areas (2023).

People and Society

With an estimated population of 51,486,343 in 2025, South Korea is predominantly ethnically Korean, and the primary language spoken is Korean. The country's demographic is aging, with a median age of 47 years and a notable elderly dependency ratio. Urbanization has led to 81.5% of the population living in cities, contributing to diverse cultural and religious practices.

Birth rate: 4.29 births per 1,000 population.
Life expectancy: 83.4 years at birth.
Literacy rate: Near universal literacy.
Health expenditure: 9.7% of GDP (2022).

Economy

South Korea's economy is recognized as high-income and export-oriented, with a focus on technology and manufacturing, particularly in semiconductors and automotive industries. The estimated real GDP, adjusted for purchasing power parity, is $2.607 trillion (2023), with a GDP per capita of $50,400. However, the country faces challenges such as slow growth and a declining construction investment.

Unemployment rate: 2.7% in 2024.
Exports: Approximately $769.243 billion in 2023.
Public debt: 52.3% of GDP (2023).
Inflation rate: 3.6% in 2023.

Government

South Korea is a presidential republic with a mixed legal system that incorporates elements of European civil law, Anglo-American law, and Chinese classical thought. The capital city is Seoul, which serves as a vital administrative hub, and the most recent presidential election occurred in June 2025. The current political landscape includes multiple parties, with the Democratic Party of Korea holding significant influence.

Constitution: The latest constitution was enacted on 25 February 1988.
Voting age: Citizens are eligible to vote at 18 years.
Number of seats in the National Assembly: 300.
Women representation: 20.3% in the National Assembly.

Military and Security

The Republic of Korea maintains a robust military presence with approximately 500,000 active personnel across its Army, Navy, and Air Force. Military expenditures account for about 2.4% of GDP, reflecting the country's focus on defense amid ongoing tensions with North Korea. South Korea's military capabilities include modern domestically produced and imported systems, heavily collaborating with the United States for defense support.

Mandatory service: All eligible men aged 18-35 are required to serve.
Military deployments: Approximately 250 personnel deployed in Lebanon for peacekeeping.
US military presence: About 28,000 US troops stationed in South Korea.

Energy

South Korea's energy sector is highly developed, with 100% electrification reported in 2022. The country relies heavily on fossil fuels, which constitute 61.5% of its installed electricity generation capacity. The installed capacity for electricity generation reaches approximately 151.139 million kW.

Electricity consumption: 575.359 billion kWh in 2023.
Nuclear energy: 30.7% of the total electricity production is sourced from nuclear power.
Energy consumption per capita: Approximately 234.668 million Btu per person (2023).

Environment

South Korea grapples with various environmental challenges, including air pollution in urban areas and water pollution from industrial effluents and sewage. The country is party to multiple international environmental agreements, aiming to mitigate issues like acid rain and solid waste disposal.

Carbon dioxide emissions: Estimated at 644.231 million metric tonnes in 2023.
Recycling rate: 67.1% of municipal solid waste recycled (2022).
Water withdrawal: Total water withdrawal is approximately 27.893 billion cubic meters (2022 est.).

Transportation

The transportation infrastructure in South Korea is well-developed, featuring 92 airports and an extensive railway system. The country also boasts a significant merchant marine fleet, with 2,149 vessels reported in 2023.

Airports: Total of 92 airports projected by 2025.
Railways: Approximately 3,979 km of railway.
Merchant marine: Includes 115 container ships and 219 oil tankers.

Communications

South Korea is a leader in communications technology with a high percentage of internet access and mobile subscriptions. About 97% of the population uses the internet, reflecting advanced digital infrastructure.

Mobile cellular subscriptions: Total of 89.2 million (2024).
Fixed telephone lines: 22.155 million subscriptions as of 2023.
Broadband subscriptions: Approximately 24.1 million fixed broadband connections.

Key Metrics

Metric	Value	Note
Population	51,486,343 (2025 est.)
Area	99,720 sq km
GDP (PPP)	$2.607 trillion	(2023 est.)
Energy consumption	575.359 billion kWh	(2023 est.)
Birth rate	4.29 births/1,000	(2025 est.)
Unemployment rate	2.7%	(2024 est.)
Life expectancy at birth	83.4 years	(2024 est.)
Urban population	81.5%	(2023)
Military expenditures	2.3% of GDP	(2025 est.)
Literacy rate	Near universal