South Sudan has a population density of 51 people per square mile compared to 928 people in Sri Lanka. South Sudan has 580,697 sq ft of land per person vs 32,224 sq ft in Sri Lanka. South Sudan and Sri Lanka rank 171st and 25th by population density, respectively.
Population density is calculated as the ratio of population to land area. South Sudan has 0.15% of the world's population and 0.42% of all countries' land area, compared to 0.27% of the population and 0.04% of the land area for Sri Lanka, making the population density in South Sudan 94.5% lower than in Sri Lanka.
Population density by year
people per square mile
| Year | Population density | |
|---|---|---|
South Sudan
|
Sri Lanka
|
|
| 2026 | 51 | 928 |
| 2025 | 50 | 923 |
| 2024 | 49 | 918 |
| 2023 | 47.1 | 923 |
| 2022 | 45.2 | 929 |
| 2021 | 44.5 | 928 |
| 2020 | 43.8 | 918 |
| 2019 | 42.7 | 913 |
| 2018 | 41.5 | 907 |
| 2017 | 42 | 898 |
| 2016 | 44.4 | 888 |
| 2015 | 45.5 | 878 |
| 2014 | 46 | 858 |
| 2013 | 45.8 | 850 |
| 2012 | 44.1 | 874 |
| 2011 | - | 868 |
| 2010 | - | 862 |
| 2009 | - | 857 |
| 2008 | - | 852 |
| 2007 | - | 846 |
| 2006 | - | 841 |
| 2005 | - | 835 |
| 2004 | - | 830 |
| 2003 | - | 824 |
| 2002 | - | 818 |
| 2001 | - | 810 |
| 2000 | - | 797 |
| 1999 | - | 782 |
| 1998 | - | 768 |
| 1997 | - | 754 |
| 1996 | - | 739 |
| 1995 | - | 725 |
| 1994 | - | 714 |
| 1993 | - | 703 |
| 1992 | - | 691 |
| 1991 | - | 680 |
| 1990 | - | 675 |
| 1989 | - | 671 |
| 1988 | - | 664 |
| 1987 | - | 657 |
| 1986 | - | 650 |
| 1985 | - | 642 |
| 1984 | - | 638 |
| 1983 | - | 636 |
| 1982 | - | 631 |
| 1981 | - | 624 |
| 1980 | - | 613 |
| 1979 | - | 602 |
| 1978 | - | 591 |
| 1977 | - | 580 |
| 1976 | - | 570 |
| 1975 | - | 560 |
| 1974 | - | 550 |
| 1973 | - | 539 |
| 1972 | - | 529 |
| 1971 | - | 518 |
| 1970 | - | 507 |
| 1969 | - | 496 |
| 1968 | - | 485 |
| 1967 | - | 473 |
| 1966 | - | 462 |
| 1965 | - | 451 |
| 1964 | - | 440 |
| 1963 | - | 429 |
| 1962 | - | 419 |
| 1961 | - | 409 |
Data sources: World Bank | Agriculture & Rural Development (1961–2026, retrieved 2026-04-06); United Nations | World Population Prospects (2025–2026, retrieved 2026-03-10).
GeoRank.org/population-density/south-sudan/sri-lanka | CC BY 
From 2012 to 2026, population density in South Sudan increased by 15.6%, compared to a 6.1% growth in Sri Lanka.
In 2012, South Sudan ranked 169th by population density and is 171st now. Sri Lanka was 27th in 2012 and ranks 25th out of 197 currently.
Population density comparison
|
South Sudan
|
Sri Lanka
|
|
|---|---|---|
| Population density | 51 ppl/mi² | 928 ppl/mi² |
| Population density rank | 171/197 | 25/197 |
| Population |
12507858
|
22185425
|
| Land area | 243,990 sq mi | 23,884 sq mi |
| Land area per capita | 569,522 sq ft | 30,382 sq ft |
| Rural population | 78.6% | 79.7% |
| Urban population | 21.4% | 20.3% |
| Living in agglomerations of 1M+ people | 0% | 0% |
Share of urban population by year
| Year | Urban population | |
|---|---|---|
|
South Sudan
|
Sri Lanka
|
|
| 2024 | 21.4% | 20.3% |
| 2023 | 21.1% | 20.1% |
| 2022 | 20.8% | 20% |
| 2021 | 20.5% | 19.8% |
| 2020 | 20.2% | 19.7% |
| 2019 | 19.9% | 19.5% |
| 2018 | 19.6% | 19.3% |
| 2017 | 19.3% | 19.2% |
| 2016 | 19.1% | 19% |
| 2015 | 18.8% | 18.8% |
| 2014 | 18.5% | 18.6% |
| 2013 | 18.3% | 18.4% |
| 2012 | 18% | 18.3% |
| 2011 | 17.8% | 17.8% |
| 2010 | 17.5% | 17.2% |
| 2009 | 17.3% | 16.7% |
| 2008 | 17% | 16.3% |
| 2007 | 17% | 15.9% |
| 2006 | 17% | 15.5% |
| 2005 | 16.9% | 15.2% |
| 2004 | 16.8% | 14.9% |
| 2003 | 16.6% | 14.7% |
| 2002 | 16.4% | 14.6% |
| 2001 | 16.3% | 14.6% |
| 2000 | 16% | 14.6% |
| 1999 | 15.8% | 14.7% |
| 1998 | 15.6% | 14.9% |
| 1997 | 15.3% | 15.2% |
| 1996 | 15% | 15.5% |
| 1995 | 14.7% | 15.9% |
| 1994 | 14.5% | 16.3% |
| 1993 | 14.2% | 16.7% |
| 1992 | 13.8% | 17.1% |
| 1991 | 13.3% | 17.6% |
| 1990 | 12.6% | 18.1% |
| 1989 | 11.9% | 18.6% |
| 1988 | 11.2% | 19% |
| 1987 | 10.4% | 19.5% |
| 1986 | 9.73% | 19.9% |
| 1985 | 9.15% | 20.3% |
| 1984 | 8.73% | 20.7% |
| 1983 | 8.52% | 21% |
| 1982 | 8.49% | 21.3% |
| 1981 | 8.49% | 21.5% |
| 1980 | 8.49% | 21.6% |
| 1979 | 8.49% | 21.8% |
| 1978 | 8.49% | 21.9% |
| 1977 | 8.49% | 22% |
| 1976 | 8.49% | 22.1% |
| 1975 | 8.5% | 22.2% |
| 1974 | 8.5% | 22.3% |
| 1973 | 8.5% | 22.4% |
| 1972 | 8.51% | 22.4% |
| 1971 | 8.51% | 22.4% |
| 1970 | 8.52% | 22.3% |
| 1969 | 8.53% | 22% |
| 1968 | 8.54% | 21.5% |
| 1967 | 8.55% | 21% |
| 1966 | 8.56% | 20.4% |
| 1965 | 8.57% | 19.8% |
| 1964 | 8.58% | 19.3% |
| 1963 | 8.6% | 18.9% |
| 1962 | 8.62% | 18.5% |
| 1961 | 8.64% | 18% |
| 1960 | 8.66% | 17.6% |
Data sources: World Bank | Health (1960–2024, retrieved 2026-04-06).
GeoRank.org/population-density/south-sudan/sri-lanka | CC BY
From 2004 to 2024, the share of urban population changed from 16.8% to 21.4% in South Sudan and from 14.9% to 20.3% in Sri Lanka.
Densely populated cities
|
South Sudan
|
|
|---|---|
| City | Population |
| Juba | 500K |
| Wau | 321K |
| Bor | 315K |
| Malakal | 147K |
| Yambio | 130K |
|
Sri Lanka
|
|
|---|---|
| City | Population |
| Colombo | 648K |
| Gampaha | 191K |
| Beruwala | 165K |
| Negombo | 142K |
| Kandy | 120K |
| Sri Jayawardenepura Kotte | 116K |
| Trincomalee | 99.1K |
| Galle | 93.1K |
| Matara | 68.2K |
| Anuradhapura | 63.2K |
Compare countries by 7 more topics
Population density in other countries
Data sources: World Bank | Agriculture & Rural Development (1961–2026, retrieved 2026-04-06); United Nations | World Population Prospects (1961–2026, retrieved 2026-03-10); U.S. Census Bureau (1961–2025, retrieved 2026-02-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20).
GeoRank.org/population-density/south-sudan/sri-lanka | CC BY
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Data sources:
- World Bank | Agriculture & Rural Development (1961–2026, retrieved 2026-04-06)
- United Nations | World Population Prospects (1961–2026, retrieved 2026-03-10)
- U.S. Census Bureau (1961–2025, retrieved 2026-02-08)
- Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20)
- Wikidata (2001–2025, retrieved 2026-02-08)
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