The latest officially reported population of South Sudan was 12,188,788 in 2025 vs 103,742 people in Tonga in 2025. In 2026, based on the adjusted UN estimation, the current South Sudan's population is 12,565,048 people compared to 103,283 in Tonga.
Population statistics:
- South Sudan's population is 121.7 times bigger than Tonga's.
- South Sudan is ranked the 80th most populous country in the world, while Tonga is the 183rd.
- The countries together account for 0.15% of the world: 0.15% for South Sudan vs 0.001% for Tonga.
- For the last 10 years, South Sudan has had an average growth rate of +0.78% per year vs -0.25% in Tonga.
- Since 2006, the population of South Sudan has increased from 7.98M people to 12.6M (57.5% growth), while Tonga has declined from 106K to 103K (2.8% decline).
South Sudan vs Tonga: population by year and forecast
| Year | Population | |
|---|---|---|
South Sudan
|
Tonga
|
|
| 2100 | 24,078,379 | 117,617 |
| 2099 | 24,072,957 | 117,585 |
| 2098 | 24,054,947 | 117,530 |
| 2097 | 24,056,753 | 117,492 |
| 2096 | 24,045,972 | 117,461 |
| 2095 | 24,037,837 | 117,383 |
| 2094 | 24,039,267 | 117,290 |
| 2093 | 24,030,512 | 117,207 |
| 2092 | 24,010,555 | 117,097 |
| 2091 | 23,991,816 | 116,983 |
| 2090 | 23,970,012 | 116,838 |
| 2089 | 23,929,017 | 116,682 |
| 2088 | 23,883,712 | 116,481 |
| 2087 | 23,848,809 | 116,277 |
| 2086 | 23,794,890 | 116,088 |
| 2085 | 23,750,772 | 115,872 |
| 2084 | 23,678,728 | 115,628 |
| 2083 | 23,609,290 | 115,336 |
| 2082 | 23,532,790 | 115,041 |
| 2081 | 23,458,146 | 114,752 |
| 2080 | 23,383,482 | 114,424 |
| 2079 | 23,286,011 | 114,074 |
| 2078 | 23,188,860 | 113,710 |
| 2077 | 23,078,416 | 113,349 |
| 2076 | 22,979,198 | 112,945 |
| 2075 | 22,860,496 | 112,565 |
| 2074 | 22,718,148 | 112,179 |
| 2073 | 22,575,682 | 111,790 |
| 2072 | 22,431,004 | 111,377 |
| 2071 | 22,280,140 | 110,963 |
| 2070 | 22,143,813 | 110,576 |
| 2069 | 21,995,874 | 110,209 |
| 2068 | 21,822,076 | 109,825 |
| 2067 | 21,654,546 | 109,446 |
| 2066 | 21,489,275 | 109,062 |
| 2065 | 21,309,913 | 108,736 |
| 2064 | 21,134,522 | 108,377 |
| 2063 | 20,957,705 | 108,033 |
| 2062 | 20,777,701 | 107,710 |
| 2061 | 20,601,672 | 107,396 |
| 2060 | 20,423,629 | 107,117 |
| 2059 | 20,227,862 | 106,842 |
| 2058 | 20,041,880 | 106,589 |
| 2057 | 19,846,671 | 106,345 |
| 2056 | 19,652,407 | 106,130 |
| 2055 | 19,457,411 | 105,915 |
| 2054 | 19,250,667 | 105,698 |
| 2053 | 19,053,773 | 105,486 |
| 2052 | 18,833,795 | 105,286 |
| 2051 | 18,626,605 | 105,079 |
| 2050 | 18,427,690 | 104,844 |
| 2049 | 18,224,430 | 104,636 |
| 2048 | 18,014,650 | 104,387 |
| 2047 | 17,799,982 | 104,154 |
| 2046 | 17,572,953 | 103,852 |
| 2045 | 17,348,901 | 103,548 |
| 2044 | 17,115,914 | 103,215 |
| 2043 | 16,882,303 | 102,934 |
| 2042 | 16,639,465 | 102,692 |
| 2041 | 16,390,966 | 102,447 |
| 2040 | 16,137,104 | 102,228 |
| 2039 | 15,884,330 | 102,061 |
| 2038 | 15,622,514 | 101,835 |
| 2037 | 15,358,539 | 101,707 |
| 2036 | 15,085,936 | 101,627 |
| 2035 | 14,810,066 | 101,580 |
| 2034 | 14,538,365 | 101,571 |
| 2033 | 14,273,128 | 101,591 |
| 2032 | 14,002,178 | 101,633 |
| 2031 | 13,725,779 | 101,764 |
| 2030 | 13,460,850 | 101,928 |
| 2029 | 13,201,804 | 102,181 |
| 2028 | 12,942,501 | 102,494 |
| 2027 | 12,688,278 | 102,841 |
| 2026 | 12,434,895 | 103,283 |
| 2025 | 12,188,788 | 103,742 |
| 2024 | 11,943,408 | 104,175 |
| 2023 | 11,483,374 | 104,597 |
| 2022 | 11,021,177 | 105,042 |
| 2021 | 10,865,780 | 105,490 |
| 2020 | 10,698,467 | 105,704 |
| 2019 | 10,423,384 | 105,669 |
| 2018 | 10,122,977 | 105,567 |
| 2017 | 10,259,154 | 105,356 |
| 2016 | 10,830,102 | 105,524 |
| 2015 | 11,107,561 | 106,095 |
| 2014 | 11,235,073 | 106,609 |
| 2013 | 11,166,275 | 107,078 |
| 2012 | 10,756,240 | 107,460 |
| 2011 | 10,288,109 | 107,570 |
| 2010 | 9,745,953 | 107,400 |
| 2009 | 9,243,556 | 107,203 |
| 2008 | 8,817,647 | 107,020 |
| 2007 | 8,388,788 | 106,726 |
| 2006 | 7,976,526 | 106,253 |
| 2005 | 7,590,143 | 105,671 |
| 2004 | 7,233,041 | 105,071 |
| 2003 | 6,903,127 | 104,464 |
| 2002 | 6,596,806 | 103,874 |
| 2001 | 6,308,391 | 103,288 |
| 2000 | 6,032,267 | 102,677 |
| 1999 | 5,771,628 | 102,046 |
| 1998 | 5,620,068 | 101,388 |
| 1997 | 5,509,136 | 100,674 |
| 1996 | 5,356,925 | 100,275 |
| 1995 | 5,225,836 | 100,225 |
| 1994 | 5,071,184 | 100,166 |
| 1993 | 4,956,002 | 100,103 |
| 1992 | 4,909,749 | 100,022 |
| 1991 | 4,836,677 | 99,895 |
| 1990 | 4,737,633 | 99,700 |
| 1989 | 4,713,229 | 99,403 |
| 1988 | 4,848,029 | 98,969 |
| 1987 | 4,962,395 | 98,376 |
| 1986 | 4,921,240 | 98,010 |
| 1985 | 4,834,296 | 97,984 |
| 1984 | 4,750,627 | 97,990 |
| 1983 | 4,661,574 | 97,998 |
| 1982 | 4,557,686 | 97,980 |
| 1981 | 4,447,272 | 97,909 |
| 1980 | 4,339,030 | 97,769 |
| 1979 | 4,232,605 | 97,544 |
| 1978 | 4,127,657 | 97,204 |
| 1977 | 4,024,032 | 96,725 |
| 1976 | 3,921,910 | 95,325 |
| 1975 | 3,821,494 | 93,017 |
| 1974 | 3,723,259 | 90,683 |
| 1973 | 3,627,383 | 88,805 |
| 1972 | 3,542,497 | 87,356 |
| 1971 | 3,468,646 | 85,896 |
| 1970 | 3,409,614 | 84,401 |
| 1969 | 3,365,533 | 82,885 |
| 1968 | 3,321,528 | 81,353 |
| 1967 | 3,277,648 | 79,814 |
| 1966 | 3,236,423 | 78,002 |
| 1965 | 3,189,835 | 75,924 |
| 1964 | 3,129,918 | 73,879 |
| 1963 | 3,072,669 | 71,885 |
| 1962 | 3,024,308 | 69,940 |
| 1961 | 2,976,724 | 68,037 |
| 1960 | 2,931,559 | 66,170 |
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-sudan/tonga | CC BY 
From 2006 to 2016, the population of South Sudan increased by 2,853,576 people (a 35.8% growth), while Tonga lost 729 people (a 0.69% decline).
For the next 10 years, from 2016 to 2026, South Sudan gained 1,734,946 people (a 16% growth), while Tonga's population decreased by 2,241 people (a 2.12% decline).
South Sudan was ranked 92nd most populous country in 2006 and is 80th in 2026. Tonga was ranked 182nd in 2006 and ranked 183rd now.
The UN's World Population Prospects forecasts that in 24 years (in 2050) South Sudan's population will grow by 46.7% to 18,427,690 people with a rank change from 80th to 78th. The population of Tonga will increase by 1.51% to 104,844 people and will still be ranked 183rd.
South Sudan is projected to reach its peak in 2100 at 24.1M people compared to the peak of 118K people in 2100 for Tonga.
Population growth rate by year
| Year | Growth rate | |
|---|---|---|
|
South Sudan
|
Tonga
|
|
| 2100 | 0.02% | 0.03% |
| 2099 | 0.07% | 0.05% |
| 2098 | -0.008% | 0.03% |
| 2097 | 0.04% | 0.03% |
| 2096 | 0.03% | 0.07% |
| 2095 | -0.006% | 0.08% |
| 2094 | 0.04% | 0.07% |
| 2093 | 0.08% | 0.09% |
| 2092 | 0.08% | 0.1% |
| 2091 | 0.09% | 0.12% |
| 2090 | 0.17% | 0.13% |
| 2089 | 0.19% | 0.17% |
| 2088 | 0.15% | 0.18% |
| 2087 | 0.23% | 0.16% |
| 2086 | 0.19% | 0.19% |
| 2085 | 0.3% | 0.21% |
| 2084 | 0.29% | 0.25% |
| 2083 | 0.33% | 0.26% |
| 2082 | 0.32% | 0.25% |
| 2081 | 0.32% | 0.29% |
| 2080 | 0.42% | 0.31% |
| 2079 | 0.42% | 0.32% |
| 2078 | 0.48% | 0.32% |
| 2077 | 0.43% | 0.36% |
| 2076 | 0.52% | 0.34% |
| 2075 | 0.63% | 0.34% |
| 2074 | 0.63% | 0.35% |
| 2073 | 0.64% | 0.37% |
| 2072 | 0.68% | 0.37% |
| 2071 | 0.62% | 0.35% |
| 2070 | 0.67% | 0.33% |
| 2069 | 0.8% | 0.35% |
| 2068 | 0.77% | 0.35% |
| 2067 | 0.77% | 0.35% |
| 2066 | 0.84% | 0.3% |
| 2065 | 0.83% | 0.33% |
| 2064 | 0.84% | 0.32% |
| 2063 | 0.87% | 0.3% |
| 2062 | 0.85% | 0.29% |
| 2061 | 0.87% | 0.26% |
| 2060 | 0.97% | 0.26% |
| 2059 | 0.93% | 0.24% |
| 2058 | 0.98% | 0.23% |
| 2057 | 0.99% | 0.2% |
| 2056 | 1% | 0.2% |
| 2055 | 1.07% | 0.2% |
| 2054 | 1.03% | 0.2% |
| 2053 | 1.17% | 0.19% |
| 2052 | 1.11% | 0.2% |
| 2051 | 1.08% | 0.22% |
| 2050 | 1.12% | 0.2% |
| 2049 | 1.16% | 0.24% |
| 2048 | 1.21% | 0.22% |
| 2047 | 1.29% | 0.29% |
| 2046 | 1.29% | 0.29% |
| 2045 | 1.36% | 0.32% |
| 2044 | 1.38% | 0.27% |
| 2043 | 1.46% | 0.24% |
| 2042 | 1.52% | 0.24% |
| 2041 | 1.57% | 0.21% |
| 2040 | 1.59% | 0.16% |
| 2039 | 1.68% | 0.22% |
| 2038 | 1.72% | 0.13% |
| 2037 | 1.81% | 0.08% |
| 2036 | 1.86% | 0.05% |
| 2035 | 1.87% | 0.009% |
| 2034 | 1.86% | -0.02% |
| 2033 | 1.94% | -0.04% |
| 2032 | 2.01% | -0.13% |
| 2031 | 1.97% | -0.16% |
| 2030 | 1.96% | -0.25% |
| 2029 | 2% | -0.31% |
| 2028 | 2% | -0.34% |
| 2027 | 2.04% | -0.43% |
| 2026 | 2.02% | -0.44% |
| 2025 | 2.05% | -0.42% |
| 2024 | 4.01% | -0.4% |
| 2023 | 4.19% | -0.42% |
| 2022 | 1.43% | -0.42% |
| 2021 | 1.56% | -0.2% |
| 2020 | 2.64% | 0.03% |
| 2019 | 2.97% | 0.1% |
| 2018 | -1.33% | 0.2% |
| 2017 | -5.27% | -0.16% |
| 2016 | -2.5% | -0.54% |
| 2015 | -1.13% | -0.48% |
| 2014 | 0.62% | -0.44% |
| 2013 | 3.81% | -0.36% |
| 2012 | 4.55% | -0.1% |
| 2011 | 5.56% | 0.16% |
| 2010 | 5.44% | 0.18% |
| 2009 | 4.83% | 0.17% |
| 2008 | 5.11% | 0.28% |
| 2007 | 5.17% | 0.45% |
| 2006 | 5.09% | 0.55% |
| 2005 | 4.94% | 0.57% |
| 2004 | 4.78% | 0.58% |
| 2003 | 4.64% | 0.57% |
| 2002 | 4.57% | 0.57% |
| 2001 | 4.58% | 0.6% |
| 2000 | 4.52% | 0.62% |
| 1999 | 2.7% | 0.65% |
| 1998 | 2.01% | 0.71% |
| 1997 | 2.84% | 0.4% |
| 1996 | 2.51% | 0.05% |
| 1995 | 3.05% | 0.06% |
| 1994 | 2.32% | 0.06% |
| 1993 | 0.94% | 0.08% |
| 1992 | 1.51% | 0.13% |
| 1991 | 2.09% | 0.2% |
| 1990 | 0.52% | 0.3% |
| 1989 | -2.78% | 0.44% |
| 1988 | -2.3% | 0.6% |
| 1987 | 0.84% | 0.37% |
| 1986 | 1.8% | 0.03% |
| 1985 | 1.76% | -0.006% |
| 1984 | 1.91% | -0.008% |
| 1983 | 2.28% | 0.02% |
| 1982 | 2.48% | 0.07% |
| 1981 | 2.49% | 0.14% |
| 1980 | 2.51% | 0.23% |
| 1979 | 2.54% | 0.35% |
| 1978 | 2.58% | 0.5% |
| 1977 | 2.6% | 1.47% |
| 1976 | 2.63% | 2.48% |
| 1975 | 2.64% | 2.57% |
| 1974 | 2.64% | 2.11% |
| 1973 | 2.4% | 1.66% |
| 1972 | 2.13% | 1.7% |
| 1971 | 1.73% | 1.77% |
| 1970 | 1.31% | 1.83% |
| 1969 | 1.32% | 1.88% |
| 1968 | 1.34% | 1.93% |
| 1967 | 1.27% | 2.32% |
| 1966 | 1.46% | 2.74% |
| 1965 | 1.91% | 2.77% |
| 1964 | 1.86% | 2.77% |
| 1963 | 1.6% | 2.78% |
| 1962 | 1.6% | 2.8% |
| 1961 | 1.54% | 2.82% |
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-sudan/tonga | CC BY
In 2025, the population of South Sudan grew by 2.05%, while Tonga's population declined by 0.42%.
Live population counters
|
South Sudan
|
Tonga
|
|
|---|---|---|
| Current population |
12565048
|
103283
|
| Population rank | 80/197 | 183/197 |
| Percent of world population | 0.15% | 0.001% |
| One net population change |
2.15 minutes
|
20.3 hours
|
| One birth every |
1.51 minutes
|
3.65 hours
|
| One death every |
4.48 minutes
|
13.1 hours
|
| Daily growth/decline | +672 | -1 |
| Annual growth/decline | +245,380 | -433 |
| Annual growth/decline rate | +2.05% | -0.42% |
| Population growth rate rank | 48/197 | 181/197 |
| One migration net change every |
1.43 hours
|
4.09 hours
|
| Annual migration change | +6,145 | -2,150 |
| Net migration rank | 50/196 | 99/196 |
| Foreign-born residents | 914,001 | 3,581 |
| Foreign-born residents rank | 62/195 | 187/195 |
| Foreign-born share of population | 7.7% | 3.4% |
| Foreign-born share rank | 77/195 | 113/195 |
Natural population change vs migration
| Year | Population change | |||
|---|---|---|---|---|
|
South Sudan
|
Tonga
|
|||
| Natural | Migration | Natural | Migration | |
| 2025 | - | 6,145 | - | -2,150 |
| 2024 | 231,714 | 15,374 | 1,729 | -2,149 |
| 2023 | 217,966 | 455,000 | 1,744 | -2,173 |
| 2022 | 211,166 | 40,259 | 1,772 | -2,218 |
| 2021 | 213,567 | -154,359 | 1,773 | -2,220 |
| 2020 | 212,332 | 62,935 | 1,816 | -1,807 |
| 2019 | 209,708 | 65,198 | 1,841 | -1,778 |
| 2018 | 168,497 | 157,408 | 1,873 | -1,723 |
| 2017 | 72,193 | -670,477 | 1,912 | -1,642 |
| 2016 | 110,553 | -654,225 | 1,989 | -2,591 |
| 2015 | 148,542 | -159,822 | 2,064 | -2,610 |
| 2014 | 227,611 | -471,523 | 2,135 | -2,622 |
| 2013 | 315,983 | 65,337 | 2,199 | -2,637 |
| 2012 | 312,974 | 125,771 | 2,255 | -2,578 |
| 2011 | 303,181 | 194,325 | 2,298 | -2,198 |
| 2010 | 287,409 | 299,402 | 2,332 | -2,097 |
| 2009 | 278,859 | 139,129 | 2,358 | -2,204 |
| 2008 | 268,268 | 165,557 | 2,397 | -2,177 |
| 2007 | 256,546 | 167,350 | 2,423 | -2,057 |
| 2006 | 246,706 | 153,926 | 2,459 | -1,875 |
| 2005 | 239,272 | 132,869 | 2,495 | -1,906 |
| 2004 | 231,877 | 110,182 | 2,478 | -1,876 |
| 2003 | 225,822 | 91,951 | 2,448 | -1,844 |
| 2002 | 212,014 | 82,847 | 2,396 | -1,815 |
| 2001 | 204,108 | 77,856 | 2,358 | -1,766 |
| 2000 | 196,055 | 74,227 | 2,346 | -1,721 |
| 1999 | 180,721 | 70,271 | 2,352 | -1,710 |
| 1998 | -12,157 | 64,285 | 2,344 | -1,665 |
| 1997 | 121,454 | 48,280 | 2,332 | -1,589 |
| 1996 | 116,728 | 17,953 | 2,393 | -2,338 |
| 1995 | 110,417 | 17,077 | 2,476 | -2,422 |
| 1994 | 165,407 | 16,407 | 2,547 | -2,484 |
| 1993 | 32,779 | 15,772 | 2,594 | -2,532 |
| 1992 | 28,874 | 15,077 | 2,622 | -2,524 |
| 1991 | 87,873 | 14,327 | 2,637 | -2,484 |
| 1990 | 82,900 | 12,988 | 2,641 | -2,409 |
| 1989 | 83,735 | -130,821 | 2,644 | -2,280 |
| 1988 | -125,447 | -97,065 | 2,649 | -2,138 |
| 1987 | 5,756 | -11,976 | 2,646 | -1,970 |
| 1986 | 99,502 | -10,973 | 2,704 | -2,650 |
| 1985 | 95,342 | -9,986 | 2,762 | -2,775 |
| 1984 | 90,970 | -8,984 | 2,814 | -2,823 |
| 1983 | 104,107 | -7,986 | 2,840 | -2,840 |
| 1982 | 118,641 | -6,983 | 2,853 | -2,814 |
| 1981 | 115,163 | -5,994 | 2,882 | -2,778 |
| 1980 | 112,307 | -4,997 | 2,885 | -2,708 |
| 1979 | 109,540 | -3,997 | 2,884 | -2,604 |
| 1978 | 107,352 | -2,998 | 2,862 | -2,457 |
| 1977 | 104,886 | -1,997 | 2,822 | -2,273 |
| 1976 | 102,346 | -995 | 2,769 | -523 |
| 1975 | 99,882 | -395 | 2,709 | -346 |
| 1974 | 97,181 | -192 | 2,650 | -344 |
| 1973 | 94,765 | 0 | 2,617 | -1,168 |
| 1972 | 74,803 | 193 | 2,605 | -1,153 |
| 1971 | 72,308 | 394 | 2,611 | -1,138 |
| 1970 | 44,776 | 587 | 2,628 | -1,122 |
| 1969 | 42,015 | 786 | 2,632 | -1,101 |
| 1968 | 44,213 | 995 | 2,614 | -1,078 |
| 1967 | 41,357 | 1,194 | 2,603 | -1,060 |
| 1966 | 38,523 | 1,386 | 2,550 | -465 |
| 1965 | 51,682 | 1,591 | 2,498 | -426 |
| 1964 | 64,786 | 1,785 | 2,445 | -428 |
| 1963 | 46,333 | 1,591 | 2,394 | -426 |
| 1962 | 47,406 | 1,386 | 2,343 | -420 |
| 1961 | 45,186 | 1,194 | 2,284 | -401 |
| 1960 | 42,945 | 995 | 2,230 | -384 |
Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08).
GeoRank.org/population/south-sudan/tonga | CC BY
Over the last 10 years, 68.1% of the population change in South Sudan is from natural causes (a gain of 1,796,238 people) and 31.9% is from migration (a loss of 842,709 people). In Tonga 47% is from natural causes (a gain of 18,513 people) and 53% is from migration (a loss of 20,911 people).
As of 2024, 914,001 residents or 7.7% of the population were not native-born in South Sudan, compared to 3,581 people or 3.4% in Tonga.
Biggest cities by population
|
South Sudan
|
|
|---|---|
| City | Population |
| Juba | 500K |
| Wau | 321K |
| Bor | 315K |
| Malakal | 147K |
| Yambio | 130K |
|
Tonga
|
|
|---|---|
| City | Population |
| Nukualofa | 23.2K |
| Mua | 5K |
Compare countries by 7 more topics
Population differences between South Sudan and Tonga
|
South Sudan
|
Tonga
|
|
|---|---|---|
| Life expectancy | 58 years | 73.4 years |
| Average age | 24.5 years | 28.1 years |
| Median age | 19.7 years | 22 years |
| Male:Female ratio | 49.2:50.8 | 47.2:52.8 |
| Fertility rate | 3.79 births per woman | 3.1 births per woman |
| Population density | 51 ppl/mi² | 372 ppl/mi² |
Population map with other countries
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-sudan/tonga | CC BY
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Data sources:
- World Bank | Health (1960–2025, retrieved 2026-07-08)
- United Nations | World Population Prospects (1960–2100, retrieved 2026-07-08)
- U.S. Census Bureau (1960–2025, retrieved 2026-07-08)
- Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08)
- Wikidata (2026, retrieved 2026-07-08)
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