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Population in South Korea compared to South Sudan: Trends, Charts, Rankings

Updated on by Georank

The latest officially reported population of South Korea was 51,684,564 in 2025 vs 12,188,788 people in South Sudan in 2025. In 2026, based on the adjusted UN estimation, the current South Korea's population is 51,624,449 people compared to 12,565,048 in South Sudan.

Population statistics:

  • South Korea's population is 4.11 times bigger than South Sudan's.
  • South Korea is ranked the 31st most populous country in the world, while South Sudan is the 80th.
  • The countries together account for 0.77% of the world: 0.62% for South Korea vs 0.15% for South Sudan.
  • For the last 10 years, South Korea has had an average growth rate of +0.17% per year vs +0.78% in South Sudan.
  • Since 2006, the population of South Korea has increased from 48.4M people to 51.6M (6.58% growth), while South Sudan has grown from 7.98M to 12.6M (57.5% growth).

South Korea vs South Sudan: population by year and forecast

South Korea
Factual

Projection
South Sudan
Factual

Projection
1x
Year Population
South Korea South Sudan
2100 22,001,649 24,078,379
2099 22,324,514 24,072,957
2098 22,657,541 24,054,947
2097 22,998,315 24,056,753
2096 23,348,632 24,045,972
2095 23,711,049 24,037,837
2094 24,081,510 24,039,267
2093 24,460,970 24,030,512
2092 24,848,715 24,010,555
2091 25,242,926 23,991,816
2090 25,642,926 23,970,012
2089 26,048,094 23,929,017
2088 26,457,020 23,883,712
2087 26,871,556 23,848,809
2086 27,288,450 23,794,890
2085 27,710,065 23,750,772
2084 28,133,600 23,678,728
2083 28,564,090 23,609,290
2082 28,998,646 23,532,790
2081 29,441,497 23,458,146
2080 29,887,135 23,383,482
2079 30,337,095 23,286,011
2078 30,793,984 23,188,860
2077 31,258,278 23,078,416
2076 31,728,826 22,979,198
2075 32,205,338 22,860,496
2074 32,689,892 22,718,148
2073 33,180,187 22,575,682
2072 33,679,874 22,431,004
2071 34,187,068 22,280,140
2070 34,702,204 22,143,813
2069 35,224,472 21,995,874
2068 35,745,164 21,822,076
2067 36,274,411 21,654,546
2066 36,808,495 21,489,275
2065 37,349,660 21,309,913
2064 37,897,742 21,134,522
2063 38,450,082 20,957,705
2062 39,009,227 20,777,701
2061 39,565,102 20,601,672
2060 40,130,032 20,423,629
2059 40,692,438 20,227,862
2058 41,256,780 20,041,880
2057 41,813,259 19,846,671
2056 42,356,530 19,652,407
2055 42,888,143 19,457,411
2054 43,405,840 19,250,667
2053 43,917,075 19,053,773
2052 44,419,192 18,833,795
2051 44,901,452 18,626,605
2050 45,362,931 18,427,690
2049 45,809,553 18,224,430
2048 46,235,718 18,014,650
2047 46,645,885 17,799,982
2046 47,033,200 17,572,953
2045 47,409,815 17,348,901
2044 47,773,842 17,115,914
2043 48,120,989 16,882,303
2042 48,455,085 16,639,465
2041 48,782,206 16,390,966
2040 49,091,438 16,137,104
2039 49,388,464 15,884,330
2038 49,669,835 15,622,514
2037 49,932,869 15,358,539
2036 50,175,947 15,085,936
2035 50,401,135 14,810,066
2034 50,607,994 14,538,365
2033 50,796,030 14,273,128
2032 50,961,878 14,002,178
2031 51,109,725 13,725,779
2030 51,242,628 13,460,850
2029 51,360,529 13,201,804
2028 51,461,403 12,942,501
2027 51,551,313 12,688,278
2026 51,624,449 12,434,895
2025 51,684,564 12,188,788
2024 51,751,065 11,943,408
2023 51,712,619 11,483,374
2022 51,672,569 11,021,177
2021 51,769,539 10,865,780
2020 51,836,239 10,698,467
2019 51,764,822 10,423,384
2018 51,585,058 10,122,977
2017 51,361,911 10,259,154
2016 51,217,803 10,830,102
2015 51,014,947 11,107,561
2014 50,746,659 11,235,073
2013 50,428,893 11,166,275
2012 50,199,853 10,756,240
2011 49,936,638 10,288,109
2010 49,554,112 9,745,953
2009 49,307,835 9,243,556
2008 49,054,708 8,817,647
2007 48,683,638 8,388,788
2006 48,438,292 7,976,526
2005 48,184,561 7,590,143
2004 48,082,519 7,233,041
2003 47,892,330 6,903,127
2002 47,644,736 6,596,806
2001 47,370,164 6,308,391
2000 47,008,111 6,032,267
1999 46,616,677 5,771,628
1998 46,286,503 5,620,068
1997 45,953,580 5,509,136
1996 45,524,681 5,356,925
1995 45,092,991 5,225,836
1994 44,641,540 5,071,184
1993 44,194,628 4,956,002
1992 43,747,962 4,909,749
1991 43,295,704 4,836,677
1990 42,869,283 4,737,633
1989 42,449,038 4,713,229
1988 42,031,247 4,848,029
1987 41,621,690 4,962,395
1986 41,213,674 4,921,240
1985 40,805,744 4,834,296
1984 40,405,956 4,750,627
1983 39,910,403 4,661,574
1982 39,326,352 4,557,686
1981 38,723,248 4,447,272
1980 38,123,775 4,339,030
1979 37,534,236 4,232,605
1978 36,969,185 4,127,657
1977 36,411,795 4,024,032
1976 35,848,523 3,921,910
1975 35,280,725 3,821,494
1974 34,692,266 3,723,259
1973 34,103,149 3,627,383
1972 33,505,406 3,542,497
1971 32,882,704 3,468,646
1970 32,240,827 3,409,614
1969 31,544,266 3,365,533
1968 30,838,302 3,321,528
1967 30,130,983 3,277,648
1966 29,435,571 3,236,423
1965 28,704,674 3,189,835
1964 27,984,155 3,129,918
1963 27,261,747 3,072,669
1962 26,513,030 3,024,308
1961 25,765,673 2,976,724
1960 25,012,374 2,931,559

Data sources: United Nations | World Population Prospects (2026–2100, retrieved 2026-07-08); World Bank | Health (1960–2025, retrieved 2026-07-08).

GeoRank.org/population/south-korea/south-sudan | CC BY

From 2006 to 2016, the population of South Korea increased by 2,779,511 people (a 5.74% growth), while South Sudan gained 2,853,576 people (a 35.8% growth).

For the next 10 years, from 2016 to 2026, South Korea gained 406,646 people (a 0.79% growth), while South Sudan's population increased by 1,734,946 people (a 16% growth).

South Korea was ranked 25th most populous country in 2006 and is 31st in 2026. South Sudan was ranked 92nd in 2006 and ranked 80th now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) South Korea's population will shrink by 12.1% to 45,362,931 people with a rank change from 31st to 48th. The population of South Sudan will increase by 46.7% to 18,427,690 people and rank change from 80th to 78th.

South Sudan is projected to reach its peak in 2100 at 24.1M people, while South Korea's population already peaked in 2020 at 51.8M people and is projected to decrease to 22M people by 2100.

Population growth rate by year

South Korea
Factual

Projection
South Sudan
Factual

Projection
1x
Year Growth rate
South Korea South Sudan
2100 -1.45% 0.02%
2099 -1.47% 0.07%
2098 -1.48% -0.008%
2097 -1.5% 0.04%
2096 -1.53% 0.03%
2095 -1.54% -0.006%
2094 -1.55% 0.04%
2093 -1.56% 0.08%
2092 -1.56% 0.08%
2091 -1.56% 0.09%
2090 -1.56% 0.17%
2089 -1.55% 0.19%
2088 -1.54% 0.15%
2087 -1.53% 0.23%
2086 -1.52% 0.19%
2085 -1.51% 0.3%
2084 -1.51% 0.29%
2083 -1.5% 0.33%
2082 -1.5% 0.32%
2081 -1.49% 0.32%
2080 -1.48% 0.42%
2079 -1.48% 0.42%
2078 -1.49% 0.48%
2077 -1.48% 0.43%
2076 -1.48% 0.52%
2075 -1.48% 0.63%
2074 -1.48% 0.63%
2073 -1.48% 0.64%
2072 -1.48% 0.68%
2071 -1.48% 0.62%
2070 -1.48% 0.67%
2069 -1.46% 0.8%
2068 -1.46% 0.77%
2067 -1.45% 0.77%
2066 -1.45% 0.84%
2065 -1.45% 0.83%
2064 -1.44% 0.84%
2063 -1.43% 0.87%
2062 -1.4% 0.85%
2061 -1.41% 0.87%
2060 -1.38% 0.97%
2059 -1.37% 0.93%
2058 -1.33% 0.98%
2057 -1.28% 0.99%
2056 -1.24% 1%
2055 -1.19% 1.07%
2054 -1.16% 1.03%
2053 -1.13% 1.17%
2052 -1.07% 1.11%
2051 -1.02% 1.08%
2050 -0.97% 1.12%
2049 -0.92% 1.16%
2048 -0.88% 1.21%
2047 -0.82% 1.29%
2046 -0.79% 1.29%
2045 -0.76% 1.36%
2044 -0.72% 1.38%
2043 -0.69% 1.46%
2042 -0.67% 1.52%
2041 -0.63% 1.57%
2040 -0.6% 1.59%
2039 -0.57% 1.68%
2038 -0.53% 1.72%
2037 -0.48% 1.81%
2036 -0.45% 1.86%
2035 -0.41% 1.87%
2034 -0.37% 1.86%
2033 -0.33% 1.94%
2032 -0.29% 2.01%
2031 -0.26% 1.97%
2030 -0.23% 1.96%
2029 -0.2% 2%
2028 -0.17% 2%
2027 -0.14% 2.04%
2026 -0.12% 2.02%
2025 -0.13% 2.05%
2024 0.07% 4.01%
2023 0.08% 4.19%
2022 -0.19% 1.43%
2021 -0.13% 1.56%
2020 0.14% 2.64%
2019 0.35% 2.97%
2018 0.43% -1.33%
2017 0.28% -5.27%
2016 0.4% -2.5%
2015 0.53% -1.13%
2014 0.63% 0.62%
2013 0.46% 3.81%
2012 0.53% 4.55%
2011 0.77% 5.56%
2010 0.5% 5.44%
2009 0.52% 4.83%
2008 0.76% 5.11%
2007 0.51% 5.17%
2006 0.53% 5.09%
2005 0.21% 4.94%
2004 0.4% 4.78%
2003 0.52% 4.64%
2002 0.58% 4.57%
2001 0.77% 4.58%
2000 0.84% 4.52%
1999 0.71% 2.7%
1998 0.72% 2.01%
1997 0.94% 2.84%
1996 0.96% 2.51%
1995 1.01% 3.05%
1994 1.01% 2.32%
1993 1.02% 0.94%
1992 1.04% 1.51%
1991 0.99% 2.09%
1990 0.99% 0.52%
1989 0.99% -2.78%
1988 0.98% -2.3%
1987 0.99% 0.84%
1986 1% 1.8%
1985 0.99% 1.76%
1984 1.24% 1.91%
1983 1.49% 2.28%
1982 1.56% 2.48%
1981 1.57% 2.49%
1980 1.57% 2.51%
1979 1.53% 2.54%
1978 1.53% 2.58%
1977 1.57% 2.6%
1976 1.61% 2.63%
1975 1.7% 2.64%
1974 1.73% 2.64%
1973 1.78% 2.4%
1972 1.89% 2.13%
1971 1.99% 1.73%
1970 2.21% 1.31%
1969 2.29% 1.32%
1968 2.35% 1.34%
1967 2.36% 1.27%
1966 2.55% 1.46%
1965 2.57% 1.91%
1964 2.65% 1.86%
1963 2.82% 1.6%
1962 2.9% 1.6%
1961 3.01% 1.54%

Data sources: United Nations | World Population Prospects (2026–2100, retrieved 2026-07-08); World Bank | Health (1961–2025, retrieved 2026-07-08).

GeoRank.org/population/south-korea/south-sudan | CC BY

In 2025, the population of South Korea declined by 0.13%, while South Sudan's population grew by 2.05%.

Live population counters

South Korea South Sudan
Current population
51624449
12565048
Population rank 31/197 80/197
Percent of world population 0.62% 0.15%
One net population change
7.93 minutes
2.15 minutes
One birth every
2.16 minutes
1.51 minutes
One death every
1.45 minutes
4.48 minutes
Daily growth/decline -182 +672
Annual growth/decline -66,501 +245,380
Annual growth/decline rate -0.13% +2.05%
Population growth rate rank 169/197 48/197
One migration net change every
8.02 minutes
1.43 hours
Annual migration change +65,731 +6,145
Net migration rank 20/196 50/196
Foreign-born residents 1,811,507 914,001
Foreign-born residents rank 40/195 62/195
Foreign-born share of population 3.5% 7.7%
Foreign-born share rank 111/195 77/195

Natural population change vs migration

South Korea
Natural

Migration
South Sudan
Natural

Migration
1x
Year Population change
South Korea South Sudan
Natural Migration Natural Migration
2025 - 65,731 - 6,145
2024 -119,027 75,963 231,714 15,374
2023 -124,111 87,800 217,966 455,000
2022 -124,014 87,800 211,166 40,259
2021 -56,947 -16,778 213,567 -154,359
2020 -31,101 112,631 212,332 62,935
2019 10,353 128,622 209,708 65,198
2018 30,951 118,220 168,497 157,408
2017 71,907 104,029 72,193 -670,477
2016 122,923 91,568 110,553 -654,225
2015 163,248 276,427 148,542 -159,822
2014 167,464 308,037 227,611 -471,523
2013 166,415 301,926 315,983 65,337
2012 215,859 281,866 312,974 125,771
2011 214,728 269,958 303,181 194,325
2010 213,083 52,042 287,409 299,402
2009 197,231 5,308 278,859 139,129
2008 215,841 -19,630 268,268 165,557
2007 248,286 -42,293 256,546 167,350
2006 203,441 -28,434 246,706 153,926
2005 187,920 -47,821 239,272 132,869
2004 225,988 -42,549 231,877 110,182
2003 244,251 -31,994 225,822 91,951
2002 247,752 -18,105 212,014 82,847
2001 312,643 -28,006 204,108 77,856
2000 390,167 -84,960 196,055 74,227
1999 368,272 -107,448 180,721 70,271
1998 393,436 -98,044 -12,157 64,285
1997 422,773 -109,130 121,454 48,280
1996 446,142 -115,705 116,728 17,953
1995 468,967 -208,491 110,417 17,077
1994 473,200 -208,309 165,407 16,407
1993 477,302 -222,802 32,779 15,772
1992 494,352 -265,849 28,874 15,077
1991 467,594 -270,754 87,873 14,327
1990 411,546 79,294 82,900 12,988
1989 403,266 186,120 83,735 -130,821
1988 399,297 192,534 -125,447 -97,065
1987 378,758 198,057 5,756 -11,976
1986 395,651 189,782 99,502 -10,973
1985 416,219 97,949 95,342 -9,986
1984 436,384 101,394 90,970 -8,984
1983 514,844 102,167 104,107 -7,986
1982 605,626 48,638 118,641 -6,983
1981 631,189 18,442 115,163 -5,994
1980 583,294 -148,341 112,307 -4,997
1979 623,068 -139,566 109,540 -3,997
1978 499,084 -85,721 107,352 -2,998
1977 578,947 -90,737 104,886 -1,997
1976 530,558 -92,314 102,346 -995
1975 603,300 -52,332 99,882 -395
1974 673,030 27,005 97,181 -192
1973 699,115 35,779 94,765 0
1972 740,469 25,382 74,803 193
1971 789,185 -6,326 72,308 394
1970 747,987 -27,999 44,776 587
1969 694,227 -21,175 42,015 786
1968 684,487 -16,868 44,213 995
1967 692,169 -16,484 41,357 1,194
1966 623,534 -16,688 38,523 1,386
1965 641,090 -146,386 51,682 1,591
1964 655,501 -102,284 64,786 1,785
1963 685,824 -80,226 46,333 1,591
1962 712,590 -94,606 47,406 1,386
1961 730,173 -93,179 45,186 1,194
1960 728,010 47,245 42,945 995

Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08).

GeoRank.org/population/south-korea/south-sudan | CC BY

Over the last 10 years, 4.97% of the population change in South Korea is from natural causes (a loss of 55,818 people) and 95% is from migration (a gain of 1,066,282 people). In South Sudan 68.1% is from natural causes (a gain of 1,796,238 people) and 31.9% is from migration (a loss of 842,709 people).

As of 2024, 1,811,507 residents or 3.5% of the population were not native-born in South Korea, compared to 914,001 people or 7.7% in South Sudan.

Biggest cities by population

South Korea
City Population
Seoul 9.67M
Busan 3.45M
Incheon 3.05M
Daegu 2.38M
Daejeon 1.48M
Gwangju 1.41M
Suwon 1.23M
Ulsan 1.13M
Yongin 1.08M
Goyang 1.06M
South Sudan
City Population
Juba 500K
Wau 321K
Bor 315K
Malakal 147K
Yambio 130K

Compare countries by 7 more topics

Population map with other countries

1x

Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08); United Nations | World Population Prospects (1960–2026, retrieved 2026-07-08); U.S. Census Bureau (1960–2025, retrieved 2026-07-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08).

GeoRank.org/population/south-korea/south-sudan | CC BY

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-07-08)
  2. United Nations | World Population Prospects (1960–2100, retrieved 2026-07-08)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-07-08)
  4. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08)
  5. Wikidata (2026, retrieved 2026-07-08)

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