South Korea vs China
South Korea has a population of 51.2M, compared to China's 1.41B. China is 27.5 times more populous than South Korea. Economically, China ($18.74T) has a GDP 10.0 times larger than South Korea's ($1.88T). China covers 9,706,961 km², 96.9 times larger than South Korea's 100,210 km². Life expectancy in South Korea stands at 83.4 years, 5.5 years higher than China's 78.0 years.
South KoreaChina| Population | -96.4%51.2M | +2652.7%1.41B |
| Area | -99.0%100,210 km² | +9586.6%9,706,961 km² |
| GDP | -90.0%$1.88T | +899.5%$18.74T |
| GDP Per Capita | +172.4%$36,238.64 | -63.3%$13,303.148 |
| Life Expectancy | +7.0%83.4 yrs | -6.6%78.0 yrs |
| Infant Mortality | -48.9%2.3 | +95.7%4.5 |
| Literacy Rate | — | — |
| Unemployment | -41.9%2.7% | +72.0%4.6% |
| Capital | Seoul | Beijing |
| Region | Asia | Asia |
| Languages | Korean | Chinese |
| Currencies | KRW (₩) | CNY (¥) |
Last updated: March 2026
All data sourced from World Bank Open Data (2025) and REST Countries API. Economic data may reflect most recent available year.
Population Comparison
China is 27.5 times more populous than South Korea, with 1.41B residents compared to 51.2M. South Korea is among the world's 30 most populous countries, while China is one of fewer than three countries with a population exceeding 1 billion. In terms of population density, South Korea averages 511 people per km² (dense), while China averages 145 people per km² (moderate). While South Korea has grown at 0.25% annually over the past decade, China has grown at 0.34% per year over the same period.
Economy Comparison
South Korea is classified as a high-income economy, while China is classified as a upper-middle-income economy. The China economy ($18.74T) is 10.0 times larger than South Korea's ($1.88T). South Korea's GDP per capita of $36,238.64 is 224% above the regional average of 11,200 for Asia. China's GDP per capita of $13,303.148 is 19% above the regional average of 11,200 for Asia. On a per-capita basis, residents of South Korea are on average 2.7 times wealthier than those in China.
Health & Quality of Life
Life expectancy in South Korea is 83.4 years, compared to 78.0 years in China, a gap of 5.5 years. South Korea (83.4 years) is 11.4 years above the global average of 72 years, while China (78.0 years) is 6.0 years above the global average of 72 years. At 4.5 deaths per 1,000 live births, China's infant mortality is 96% higher than South Korea's 2.3.
Geographic Comparison
China (9,706,961 km²) is 96.9 times larger by land area than South Korea (100,210 km²). South Korea shares borders with 1 country, while China borders 16 countries. South Korea spans 1 timezone, compared to China's 1 timezone. Both South Korea and China are located in Asia. Both countries fall within the Asia region, though they occupy different subregions: Eastern Asia and Eastern Asia.
Key Differences
The most significant difference between South Korea and China is in land area: South Korea's 100,210 km² compared to China's 9,706,961 km² represents a 99% gap. The most significant difference between South Korea and China is in population: South Korea's 51.2M compared to China's 1.41B represents a 96% gap. The most significant difference between South Korea and China is in GDP: South Korea's $1.88T compared to China's $18.74T represents a 90% gap. These disparities reflect the broader structural differences between South Korea's high-income economy and China's upper-middle-income economy.
At a Glance: What the Numbers Mean
Living Standards
South Korea has a GDP per capita of $36,238.64, which is 2.7x that of China ($13,303.148). This gap reflects differences in economic development, industrial structure, and workforce productivity. In practical terms, average purchasing power in South Korea is significantly higher, though cost of living differences partially offset the raw income gap.
Population Density
South Korea is 3.5x more densely populated than China (511 vs 145 people per km²). Higher density typically correlates with more urbanization, greater demand for public transit, and higher housing costs. China's lower density suggests more rural land use and potentially lower urban congestion.
Healthcare and Longevity
Citizens of South Korea live an average of 5.5 years longer than those of China (83.4 vs 78.0 years). This gap reflects differences in healthcare access, nutrition, public health infrastructure, and environmental factors. This is a substantial gap that suggests significant differences in healthcare systems and overall living conditions.
Economic Momentum
China's economy grew at 5.0% compared to South Korea's 2.0%. Both countries show healthy growth, though China has a modest edge in economic dynamism.
Frequently Asked Questions
Which is bigger, South Korea or China by population?
China is larger by population, with 1.41B residents compared to South Korea's 51.2M. China is 27.5 times more populous than South Korea.
Which country has a higher GDP, South Korea or China?
China has the higher GDP at $18.74T, compared to South Korea's $1.88T. China's economy is 10.0 times larger.
How does life expectancy compare between South Korea and China?
South Korea has a higher life expectancy at 83.4 years, compared to China's 78.0 years. The gap between the two countries is 5.5 years. South Korea's life expectancy is 11.4 years above the global average of 72 years, while China's is 6.0 years above the global average of 72 years.
Which country is larger by area, South Korea or China?
China is larger by land area, covering 9,706,961 km² compared to South Korea's 100,210 km². China is 96.9 times larger than South Korea.
What languages are spoken in South Korea and China?
South Korea recognizes the following official language: Korean. China recognizes: Chinese. The two countries do not share an official language.
Which country has lower inflation, South Korea or China?
China has lower inflation at 0.2%, compared to South Korea's 2.3%. China's inflation is within the 2-3% range considered stable by most central banks, while South Korea's rate is within the 2-3% range considered stable by most central banks.