South Korea Demographics

Population of South Korea (2020)

View live population, charts & trends: Population of South Korea

South Korea Population
Yearly Change
+ 0.09%
Global Share
Global Rank

Fertility in South Korea

A Total Fertility Rate (TFR) of 2.1 represents the Replacement-Level Fertility: the average number of children per woman needed for each generation to exactly replace itself without needing international immigration. A value below 2.1 will cause the native population to decline

pregnant_woman Total Fertiliy Rate (TFR)
(Live Births per Woman, 2020)

Life Expectancy in South Korea

See also: Countries in the world ranked by Life Expectancy

Both Sexes
83.5 years
(life expectancy at birth, both sexes combined)
86.4 years
(life expectancy at birth, females)
80.5 years
(life expectancy at birth, males)

Infant Mortality Rate and Deaths of Children under 5 Years Old in South Korea

Infant Mortality
(infant deaths per 1,000 live births)
Deaths under age 5
(per 1,000 live births)

South Korea Urban Population

Currently, 81.6 % of the population of South Korea is urban (41,805,375 people in 2019)

Population Density

The 2019 population density in South Korea is 527 people per Km2 (1,365 people per mi2), calculated on a total land area of 97,230 Km2 (37,541 sq. miles).

Largest Cities in South Korea

1 Seoul 10,349,312
2 Busan 3,678,555
3 Incheon 2,628,000
4 Daegu 2,566,540
5 Daejeon 1,475,221
6 Gwangju 1,416,938
7 Suwon 1,242,724
8 Goyang-si 1,073,069
9 Seongnam-si 1,031,935
10 Ulsan 962,865
11 Bucheon-si 850,731
12 Jeonju 711,424
13 Ansan-si 650,728
14 Cheongju-si 634,596
15 Anyang-si 634,367
16 Changwon 550,000
17 Pohang 500,000
18 Uijeongbu-si 479,141
19 Hwaseong-si 476,297
20 Masan 434,371
21 Jeju City 408,364
22 Cheonan 365,114
23 Kwangmyong 357,545
24 Kimhae 356,242
25 Chinju 307,242
26 Yeosu 295,538
27 Gumi 291,006
28 Iksan 283,501
29 Mokpo 268,402
30 Gunsan 243,406

See also



Population Pyramid

A Population pyramid (also called "Age-Sex Pyramid") is a graphical representation of the age and sex of a population.


  • Expansive - pyramid with a wide base (larger percentage of people in younger age groups, indicating high birth rates and high fertility rates) and narrow top (high death rate and lower life expectancies). It suggests a growing population. Example: Nigera Population Pyramid
  • Constrictive - pyramid with a narrow base (lower percentage of younger people, indicating declining birth rates with each succeeding age group getting smaller than the previous one). Example: United States
  • Stationary - with a somewhat equal proportion of the population in each age group. The population is stable, neither increasing nor decreasing.



Dependency Ratio

There are three types of age dependency ratio: Youth, Elderly, and Total. All three ratios are commonly multiplied by 100.

Youth Dependency Ratio
Definition: population ages 0-15 divided by the population ages 16-64.
Formula: ([Population ages 0-15] ÷ [Population ages 16-64]) × 100

Elderly dependency ratio
Definition: population ages 65-plus divided by the population ages 16-64.
Formula: ([Population ages 65-plus] ÷ [Population ages 16-64]) × 100

Total dependency ratio
Definition: sum of the youth and old-age ratios.
Formula: (([Population ages 0-15] + [Population ages 65-plus]) ÷ [Population ages 16-64]) × 100

NOTE: Dependency Ratio does not take into account labor force participation rates by age group. Some portion of the population counted as "working age" may actually be unemployed or not in the labor force whereas some portion of the "dependent" population may be employed and not necessarily economically dependent.