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

Updated on by Georank

The latest officially reported population of Cambodia was 17,847,982 in 2025 vs 12,188,788 people in South Sudan in 2025. In 2026, based on the adjusted UN estimation, the current Cambodia's population is 18,159,213 people compared to 12,565,048 in South Sudan.

Population statistics:

  • Cambodia's population is 1.45 times bigger than South Sudan's.
  • Cambodia is ranked the 73rd most populous country in the world, while South Sudan is the 80th.
  • The countries together account for 0.37% of the world: 0.22% for Cambodia vs 0.15% for South Sudan.
  • For the last 10 years, Cambodia has had an average growth rate of +1.35% per year vs +0.78% in South Sudan.
  • Since 2006, the population of Cambodia has increased from 13.6M people to 18.2M (33.1% growth), while South Sudan has grown from 7.98M to 12.6M (57.5% growth).

Cambodia vs South Sudan: population by year and forecast

Cambodia
Factual

Projection
South Sudan
Factual

Projection
1x
Year Population
Cambodia South Sudan
2100 22,901,914 24,078,379
2099 22,958,383 24,072,957
2098 23,015,331 24,054,947
2097 23,068,989 24,056,753
2096 23,118,854 24,045,972
2095 23,162,704 24,037,837
2094 23,207,466 24,039,267
2093 23,247,521 24,030,512
2092 23,285,540 24,010,555
2091 23,317,510 23,991,816
2090 23,349,581 23,970,012
2089 23,381,110 23,929,017
2088 23,404,619 23,883,712
2087 23,429,179 23,848,809
2086 23,450,970 23,794,890
2085 23,469,059 23,750,772
2084 23,486,236 23,678,728
2083 23,498,658 23,609,290
2082 23,506,751 23,532,790
2081 23,512,878 23,458,146
2080 23,518,840 23,383,482
2079 23,523,165 23,286,011
2078 23,523,989 23,188,860
2077 23,519,769 23,078,416
2076 23,512,440 22,979,198
2075 23,506,393 22,860,496
2074 23,494,004 22,718,148
2073 23,481,588 22,575,682
2072 23,463,712 22,431,004
2071 23,443,140 22,280,140
2070 23,420,769 22,143,813
2069 23,393,461 21,995,874
2068 23,362,386 21,822,076
2067 23,324,169 21,654,546
2066 23,283,399 21,489,275
2065 23,242,009 21,309,913
2064 23,191,929 21,134,522
2063 23,139,318 20,957,705
2062 23,083,489 20,777,701
2061 23,020,659 20,601,672
2060 22,951,813 20,423,629
2059 22,877,844 20,227,862
2058 22,799,179 20,041,880
2057 22,715,484 19,846,671
2056 22,628,607 19,652,407
2055 22,537,541 19,457,411
2054 22,440,088 19,250,667
2053 22,338,320 19,053,773
2052 22,231,339 18,833,795
2051 22,117,409 18,626,605
2050 22,001,254 18,427,690
2049 21,877,484 18,224,430
2048 21,749,790 18,014,650
2047 21,618,052 17,799,982
2046 21,480,480 17,572,953
2045 21,340,224 17,348,901
2044 21,195,511 17,115,914
2043 21,046,437 16,882,303
2042 20,893,438 16,639,465
2041 20,738,659 16,390,966
2040 20,582,241 16,137,104
2039 20,421,184 15,884,330
2038 20,256,225 15,622,514
2037 20,088,660 15,358,539
2036 19,922,341 15,085,936
2035 19,747,906 14,810,066
2034 19,573,792 14,538,365
2033 19,395,265 14,273,128
2032 19,215,259 14,002,178
2031 19,030,553 13,725,779
2030 18,843,778 13,460,850
2029 18,652,372 13,201,804
2028 18,456,287 12,942,501
2027 18,256,828 12,688,278
2026 18,056,115 12,434,895
2025 17,847,982 12,188,788
2024 17,638,801 11,943,408
2023 17,423,880 11,483,374
2022 17,201,724 11,021,177
2021 16,974,305 10,865,780
2020 16,725,474 10,698,467
2019 16,481,304 10,423,384
2018 16,274,522 10,122,977
2017 16,073,372 10,259,154
2016 15,852,803 10,830,102
2015 15,623,251 11,107,561
2014 15,396,772 11,235,073
2013 15,170,208 11,166,275
2012 14,945,085 10,756,240
2011 14,722,584 10,288,109
2010 14,500,726 9,745,953
2009 14,276,810 9,243,556
2008 14,053,479 8,817,647
2007 13,841,770 8,388,788
2006 13,639,028 7,976,526
2005 13,439,202 7,590,143
2004 13,244,731 7,233,041
2003 13,050,968 6,903,127
2002 12,855,241 6,596,806
2001 12,658,484 6,308,391
2000 12,462,336 6,032,267
1999 12,265,731 5,771,628
1998 12,058,173 5,620,068
1997 11,570,982 5,509,136
1996 10,801,270 5,356,925
1995 10,018,497 5,225,836
1994 9,239,162 5,071,184
1993 8,616,381 4,956,002
1992 8,113,083 4,909,749
1991 7,686,850 4,836,677
1990 7,374,752 4,737,633
1989 7,073,473 4,713,229
1988 6,812,014 4,848,029
1987 6,557,970 4,962,395
1986 6,285,693 4,921,240
1985 6,043,783 4,834,296
1984 5,845,117 4,750,627
1983 5,636,203 4,661,574
1982 5,436,432 4,557,686
1981 5,284,495 4,447,272
1980 5,199,872 4,339,030
1979 5,088,808 4,232,605
1978 5,211,653 4,127,657
1977 5,668,551 4,024,032
1976 6,134,991 3,921,910
1975 6,581,371 3,821,494
1974 6,783,240 3,723,259
1973 6,739,726 3,627,383
1972 6,673,886 3,542,497
1971 6,620,880 3,468,646
1970 6,639,182 3,409,614
1969 6,604,725 3,365,533
1968 6,467,324 3,321,528
1967 6,332,944 3,277,648
1966 6,201,232 3,236,423
1965 6,072,289 3,189,835
1964 5,946,178 3,129,918
1963 5,823,010 3,072,669
1962 5,697,558 3,024,308
1961 5,571,168 2,976,724
1960 5,449,966 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/cambodia/south-sudan | CC BY

From 2006 to 2016, the population of Cambodia increased by 2,213,775 people (a 16.2% growth), while South Sudan gained 2,853,576 people (a 35.8% growth).

For the next 10 years, from 2016 to 2026, Cambodia gained 2,306,410 people (a 14.5% growth), while South Sudan's population increased by 1,734,946 people (a 16% growth).

Cambodia was ranked 67th most populous country in 2006 and is 73rd 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) Cambodia's population will grow by 21.2% to 22,001,254 people and will still be ranked 73rd. The population of South Sudan will increase by 46.7% to 18,427,690 people and rank change from 80th to 78th.

Cambodia is projected to reach its peak in 2078 at 23.5M people compared to the peak of 24.1M people in 2100 for South Sudan.

Population growth rate by year

Cambodia
Factual

Projection
South Sudan
Factual

Projection
1x
Year Growth rate
Cambodia South Sudan
2100 -0.25% 0.02%
2099 -0.25% 0.07%
2098 -0.23% -0.008%
2097 -0.22% 0.04%
2096 -0.19% 0.03%
2095 -0.19% -0.006%
2094 -0.17% 0.04%
2093 -0.16% 0.08%
2092 -0.14% 0.08%
2091 -0.14% 0.09%
2090 -0.13% 0.17%
2089 -0.1% 0.19%
2088 -0.1% 0.15%
2087 -0.09% 0.23%
2086 -0.08% 0.19%
2085 -0.07% 0.3%
2084 -0.05% 0.29%
2083 -0.03% 0.33%
2082 -0.03% 0.32%
2081 -0.03% 0.32%
2080 -0.02% 0.42%
2079 -0.004% 0.42%
2078 0.02% 0.48%
2077 0.03% 0.43%
2076 0.03% 0.52%
2075 0.05% 0.63%
2074 0.05% 0.63%
2073 0.08% 0.64%
2072 0.09% 0.68%
2071 0.1% 0.62%
2070 0.12% 0.67%
2069 0.13% 0.8%
2068 0.16% 0.77%
2067 0.18% 0.77%
2066 0.18% 0.84%
2065 0.22% 0.83%
2064 0.23% 0.84%
2063 0.24% 0.87%
2062 0.27% 0.85%
2061 0.3% 0.87%
2060 0.32% 0.97%
2059 0.35% 0.93%
2058 0.37% 0.98%
2057 0.38% 0.99%
2056 0.4% 1%
2055 0.43% 1.07%
2054 0.46% 1.03%
2053 0.48% 1.17%
2052 0.52% 1.11%
2051 0.53% 1.08%
2050 0.57% 1.12%
2049 0.59% 1.16%
2048 0.61% 1.21%
2047 0.64% 1.29%
2046 0.66% 1.29%
2045 0.68% 1.36%
2044 0.71% 1.38%
2043 0.73% 1.46%
2042 0.75% 1.52%
2041 0.76% 1.57%
2040 0.79% 1.59%
2039 0.81% 1.68%
2038 0.83% 1.72%
2037 0.83% 1.81%
2036 0.88% 1.86%
2035 0.89% 1.87%
2034 0.92% 1.86%
2033 0.94% 1.94%
2032 0.97% 2.01%
2031 0.99% 1.97%
2030 1.03% 1.96%
2029 1.06% 2%
2028 1.09% 2%
2027 1.11% 2.04%
2026 1.17% 2.02%
2025 1.19% 2.05%
2024 1.23% 4.01%
2023 1.29% 4.19%
2022 1.34% 1.43%
2021 1.49% 1.56%
2020 1.48% 2.64%
2019 1.27% 2.97%
2018 1.25% -1.33%
2017 1.39% -5.27%
2016 1.47% -2.5%
2015 1.47% -1.13%
2014 1.49% 0.62%
2013 1.51% 3.81%
2012 1.51% 4.55%
2011 1.53% 5.56%
2010 1.57% 5.44%
2009 1.59% 4.83%
2008 1.53% 5.11%
2007 1.49% 5.17%
2006 1.49% 5.09%
2005 1.47% 4.94%
2004 1.48% 4.78%
2003 1.52% 4.64%
2002 1.55% 4.57%
2001 1.57% 4.58%
2000 1.6% 4.52%
1999 1.72% 2.7%
1998 4.21% 2.01%
1997 7.13% 2.84%
1996 7.81% 2.51%
1995 8.44% 3.05%
1994 7.23% 2.32%
1993 6.2% 0.94%
1992 5.54% 1.51%
1991 4.23% 2.09%
1990 4.26% 0.52%
1989 3.84% -2.78%
1988 3.87% -2.3%
1987 4.33% 0.84%
1986 4% 1.8%
1985 3.4% 1.76%
1984 3.71% 1.91%
1983 3.67% 2.28%
1982 2.88% 2.48%
1981 1.63% 2.49%
1980 2.18% 2.51%
1979 -2.36% 2.54%
1978 -8.06% 2.58%
1977 -7.6% 2.6%
1976 -6.78% 2.63%
1975 -2.98% 2.64%
1974 0.65% 2.64%
1973 0.99% 2.4%
1972 0.8% 2.13%
1971 -0.28% 1.73%
1970 0.52% 1.31%
1969 2.12% 1.32%
1968 2.12% 1.34%
1967 2.12% 1.27%
1966 2.12% 1.46%
1965 2.12% 1.91%
1964 2.12% 1.86%
1963 2.2% 1.6%
1962 2.27% 1.6%
1961 2.22% 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/cambodia/south-sudan | CC BY

In 2025, the population of Cambodia grew by 1.19%, while South Sudan's population grew by 2.05%.

Live population counters

Cambodia South Sudan
Current population
18159213
12565048
Population rank 73/197 80/197
Percent of world population 0.22% 0.15%
One net population change
2.52 minutes
2.15 minutes
One birth every
1.47 minutes
1.51 minutes
One death every
4.62 minutes
4.48 minutes
Daily growth/decline +573 +672
Annual growth/decline +209,181 +245,380
Annual growth/decline rate +1.19% +2.05%
Population growth rate rank 88/197 48/197
One migration net change every
16.7 minutes
1.43 hours
Annual migration change -31,469 +6,145
Net migration rank 167/196 50/196
Foreign-born residents 83,925 914,001
Foreign-born residents rank 136/195 62/195
Foreign-born share of population 0.5% 7.7%
Foreign-born share rank 175/195 77/195

Natural population change vs migration

Cambodia
Natural

Migration
South Sudan
Natural

Migration
1x
Year Population change
Cambodia South Sudan
Natural Migration Natural Migration
2025 - -31,469 - 6,145
2024 244,386 -32,960 231,714 15,374
2023 250,242 -31,837 217,966 455,000
2022 257,269 -31,350 211,166 40,259
2021 255,939 -27,025 213,567 -154,359
2020 268,745 0 212,332 62,935
2019 276,870 -57,268 209,708 65,198
2018 280,671 -86,702 168,497 157,408
2017 282,698 -74,362 72,193 -670,477
2016 284,130 -51,324 110,553 -654,225
2015 284,390 -58,101 148,542 -159,822
2014 283,193 -56,536 227,611 -471,523
2013 281,013 -54,554 315,983 65,337
2012 276,649 -52,874 312,974 125,771
2011 272,161 -50,941 303,181 194,325
2010 272,266 -49,781 287,409 299,402
2009 274,700 -49,354 278,859 139,129
2008 272,132 -50,809 268,268 165,557
2007 270,745 -68,653 256,546 167,350
2006 263,697 -60,315 246,706 153,926
2005 256,756 -60,473 239,272 132,869
2004 251,650 -58,972 231,877 110,182
2003 251,884 -57,026 225,822 91,951
2002 251,860 -55,245 212,014 82,847
2001 250,726 -53,815 204,108 77,856
2000 246,330 -50,957 196,055 74,227
1999 245,425 -47,608 180,721 70,271
1998 251,076 -33,781 -12,157 64,285
1997 252,351 504,742 121,454 48,280
1996 274,147 508,187 116,728 17,953
1995 280,168 503,042 110,417 17,077
1994 286,728 488,732 165,407 16,407
1993 282,221 187,883 32,779 15,772
1992 260,673 275,823 28,874 15,077
1991 257,709 58,264 87,873 14,327
1990 249,776 58,455 82,900 12,988
1989 239,211 55,125 83,735 -130,821
1988 243,203 -14,627 -125,447 -97,065
1987 235,064 44,442 5,756 -11,976
1986 221,684 43,356 99,502 -10,973
1985 214,101 4,677 95,342 -9,986
1984 207,700 -29,141 90,970 -8,984
1983 192,849 46,428 104,107 -7,986
1982 180,300 -20,026 118,641 -6,983
1981 166,578 -22,982 115,163 -5,994
1980 159,157 -133,508 112,307 -4,997
1979 78,143 118,334 109,540 -3,997
1978 -357,478 -84,695 107,352 -2,998
1977 -416,117 -55,504 104,886 -1,997
1976 -408,505 -52,741 102,346 -995
1975 -383,806 -47,717 99,882 -395
1974 73,001 -45,225 97,181 -192
1973 101,304 -42,053 94,765 0
1972 113,190 -40,764 74,803 193
1971 113,813 -80,232 72,308 394
1970 122,832 -193,008 44,776 587
1969 156,777 -17,676 42,015 786
1968 153,444 -17,745 44,213 995
1967 150,046 -16,983 41,357 1,194
1966 147,583 -17,216 38,523 1,386
1965 144,460 -16,930 51,682 1,591
1964 141,216 -16,516 64,786 1,785
1963 137,562 -15,929 46,333 1,591
1962 132,861 -3,578 47,406 1,386
1961 128,259 -4,764 45,186 1,194
1960 124,237 -5,339 42,945 995

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

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

Over the last 10 years, 85.6% of the population change in Cambodia is from natural causes (a gain of 2,685,340 people) and 14.4% is from migration (a loss of 450,929 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, 83,925 residents or 0.5% of the population were not native-born in Cambodia, compared to 914,001 people or 7.7% in South Sudan.

Biggest cities by population

Cambodia
City Population
Phnom Penh 2.13M
Siem Reap 245K
Battambang 119K
Serei Saophoan 99K
Sihanoukville 71.1K
Kampong Cham 61.8K
Kampot 42.1K
Svay Rieng 41.4K
Prey Veng 33.1K
Stung Treng 29.7K
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/cambodia/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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