The population of Republic of Korea is expected to grow by 185,000 in 2018 and reach 51,797,000 in 2019. Migration (including immigration and emigration) increases population by 40,000 people yearly. On average there are 451,369 births and 310,828 deaths in South Korea per year. Rate of natural increase is approximately 0.27 percent per year. The population density of South Korea has changed from 395.2 in 1980 to 525.7 in 2016.
| Current population | 51,790,365 people at present (Monday 17th of December 2018) | |
| Median Age | 41.4 years |
| Life expectancy | 82.5 years | |
| Population density | 526.2 per km2 |
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2018 | 51,624,000 | 185,000 (0.4%) | 40,000 | 41.4 | 1.31 | 526 | 42,763,000 (82.8%) |
| 2017 | 51,439,000 | 193,293 (0.4%) | 40,000 | 41.0 | 1.29 | 524 | 42,547,000 (82.7%) |
| 2016 | 51,245,707 | 230,760 (0.5%) | 40,000 | 40.6 | 1.26 | 526 | 42,324,854 (82.6%) |
| 2015 | 51,014,947 | 268,288 (0.5%) | 40,000 | 40.1 | 1.24 | 523 | 42,074,067 (82.5%) |
| 2010 | 49,554,112 | 246,277 (0.5%) | 33,927 | 37.9 | 1.23 | 510 | 40,602,657 (81.9%) |
| 2005 | 48,184,561 | 102,042 (0.2%) | -31,307 | 35.5 | 1.08 | 498 | 39,195,731 (81.3%) |
| 2000 | 47,008,111 | 391,434 (0.8%) | 16,258 | 33.1 | 1.47 | 487 | 37,428,328 (79.6%) |
| 1995 | 45,092,991 | 451,451 (1.0%) | 31,868 | 31.2 | 1.63 | 467 | 35,280,305 (78.2%) |
| 1990 | 42,869,283 | 420,245 (1.0%) | 14,301 | 29.5 | 1.57 | 444 | 31,656,393 (73.8%) |
| 1985 | 40,805,744 | 399,788 (1.0%) | 34,125 | 27.5 | 1.66 | 423 | 26,473,134 (64.9%) |
| 1980 | 38,123,775 | 589,539 (1.6%) | 18,607 | 26.1 | 2.82 | 395 | 21,623,805 (56.7%) |
| 1975 | 35,280,725 | 588,459 (1.7%) | -33,029 | 24.7 | 3.43 | 366 | 16,946,391 (48.0%) |
| 1970 | 32,240,827 | 696,561 (2.2%) | -41,981 | 23.9 | 4.53 | 334 | 13,123,306 (40.7%) |
| 1965 | 28,704,674 | 720,519 (2.5%) | -9,729 | 23.3 | 5.13 | 298 | 9,286,249 (32.4%) |
| 1960 | 25,012,374 | 753,299 (2.9%) | 7,967 | 23.2 | 6.10 | 261 | 6,930,929 (27.7%) |
In 2017 the population of South Korea was 51,439,000 and the average age increased from 23.2 in 1960 to 41.0. Urban population has increased from 37,428,328 (79.6%) in 2000 to 42,763,000 (82.8%) in the current year. The population density of South Korea has changed from 395.2 in 1980 to 525.7 in 2016.
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2020 | 51,962,000 | 165,000 (0.3%) | 40,000 | 42.2 | 1.36 | 530 | 43,176,000 (83.1%) |
| 2025 | 52,668,000 | 128,000 (0.2%) | 40,000 | 44.1 | 1.43 | 537 | 44,125,000 (83.8%) |
| 2030 | 53,178,000 | 80,000 (0.2%) | 40,000 | 45.7 | 1.49 | 542 | 44,949,000 (84.5%) |
| 2035 | 53,292,000 | -24,000 (-0.1%) | 40,000 | 47.2 | 1.54 | 543 | 45,466,000 (85.3%) |
| 2040 | 52,793,000 | -149,000 (-0.3%) | 40,000 | 48.6 | 1.59 | 539 | 45,461,000 (86.1%) |
| 2045 | 51,779,000 | -229,000 (-0.4%) | 40,000 | 49.7 | 1.62 | 531 | 44,984,000 (86.9%) |
| 2050 | 50,503,000 | -274,000 (-0.5%) | 40,000 | 50.5 | 1.65 | 519 | 44,243,000 (87.6%) |
Total South Korea population should reach 51,962,000 by 2020 and should decrease to 50,503,000 people by year 2050. The life expectancy at birth should reach 87.4 (84.6 years for male and 90.4 years for females). Population density will go up to 518.9 people per square kilometer.
The population growth rate is 0.36% (193,293 residents, including 287,335 deaths). The demographics of South Korea constitutes of 25,797,000 women and 25,827,000 men, which means there are 1,001 men per 1000 women. As far as age distribution goes, 18.8% of population (9,689,825) is 19 or younger, 66.8% of population (34,489,994) is between age 20 and 64 and 14.4% of population (7,454,506) is over 65.