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Population density: Slovenia vs Tonga compared

Updated on by Georank team

Slovenia has a population density of 273.2 people per square mile compared to 372 people in Tonga. Slovenia has 102,564 sq ft of land per person vs 77,340 sq ft in Tonga. Slovenia and Tonga rank 88th and 69th by population density, respectively.

Population density is calculated as the ratio of population to land area. Slovenia has 0.03% of the world's population and 0.01% of all countries' land area, compared to 0.001% of the population and 0.0005% of the land area for Tonga, making the population density in Slovenia 26.5% lower than in Tonga.

Population density by year

Slovenia
Tonga

people per square mile

1x
Year Population density
Slovenia Tonga
2026 273.2 372
2025 273.5 373
2024 273.7 375
2023 272.8 376
2022 271.7 378
2021 271.1 379
2020 270.4 380
2019 268.6 380
2018 266.7 380
2017 265.8 379
2016 265.5 380
2015 265.3 382
2014 265.2 383
2013 264.9 385
2012 264.5 387
2011 263.9 387
2010 263.4 386
2009 262.2 386
2008 259.9 385
2007 259.5 384
2006 258.1 382
2005 257.3 380
2004 256.8 378
2003 256.6 376
2002 256.5 374
2001 256.2 372
2000 255.8 369
1999 255 367
1998 254.8 365
1997 255.4 362
1996 255.7 361
1995 255.9 361
1994 255.8 360
1993 256.1 360
1992 256.7 360
1991 - 359
1990 - 359
1989 - 358
1988 - 356
1987 - 354
1986 - 353
1985 - 352
1984 - 352
1983 - 353
1982 - 352
1981 - 352
1980 - 352
1979 - 351
1978 - 350
1977 - 348
1976 - 343
1975 - 335
1974 - 326
1973 - 319
1972 - 314
1971 - 309
1970 - 304
1969 - 298.2
1968 - 292.6
1967 - 287.1
1966 - 280.6
1965 - 273.1
1964 - 265.8
1963 - 258.6
1962 - 251.6
1961 - 244.7

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/slovenia/tonga | CC BY

From 2006 to 2026, population density in Slovenia increased by 5.87%, compared to a 2.77% decline in Tonga.

In 2006, Slovenia ranked 80th by population density and is 88th now. Tonga was 54th in 2006 and ranks 69th out of 197 currently.

Share of urban population by year

Slovenia
Tonga
1x
Year Urban population
Slovenia Tonga
2024 55.8% 21.2%
2023 55.5% 21.1%
2022 55.3% 21.1%
2021 55.3% 21.3%
2020 55.4% 21.9%
2019 55.5% 22.3%
2018 55.2% 22.7%
2017 55.2% 23%
2016 53.6% 23.1%
2015 53.7% 23.2%
2014 51% 23.3%
2013 50% 23.4%
2012 49.8% 23.5%
2011 49.9% 23.5%
2010 50.1% 23.4%
2009 50.2% 23.4%
2008 50.4% 23.3%
2007 50.5% 23.2%
2006 50.6% 23.2%
2005 50.6% 23.1%
2004 50.7% 23.1%
2003 50.8% 23.1%
2002 50.8% 23.1%
2001 50.8% 23%
2000 50.7% 23%
1999 50.6% 23%
1998 50.5% 23%
1997 50.4% 22.9%
1996 50.3% 22.9%
1995 50.2% 22.8%
1994 50.2% 22.7%
1993 50.4% 22.6%
1992 50.7% 22.5%
1991 50.5% 22.4%
1990 50.6% 22.2%
1989 50.3% 22%
1988 51% 21.9%
1987 50.9% 21.7%
1986 50.8% 21.5%
1985 50.5% 21.4%
1984 50.2% 21.2%
1983 49.8% 21%
1982 49.4% 20.9%
1981 49% 20.7%
1980 48.5% 20.6%
1979 47.7% 20.5%
1978 46.7% 20.4%
1977 45.6% 20.4%
1976 44.3% 20.3%
1975 43% 20.3%
1974 41.6% 20.3%
1973 40.3% 20.2%
1972 39.1% 20.2%
1971 38% 20.2%
1970 37% 20.2%
1969 36% 20.2%
1968 35.1% 20.1%
1967 34.2% 20.1%
1966 33.4% 20%
1965 32.5% 19.9%
1964 31.7% 19.7%
1963 30.8% 19.4%
1962 30% 19.1%
1961 29.1% 18.7%
1960 28.2% 18.3%

Data sources: World Bank | Health (1960–2024, retrieved 2026-04-06).

GeoRank.org/population-density/slovenia/tonga | CC BY

From 2004 to 2024, the share of urban population changed from 50.7% to 55.8% in Slovenia and from 23.1% to 21.2% in Tonga.

Densely populated cities

Slovenia
City Population
Ljubljana 284K
Maribor 114K

Compare countries by 7 more topics

Population density in other countries

1x

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/slovenia/tonga | CC BY

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Data sources:

  1. World Bank | Agriculture & Rural Development (1961–2026, retrieved 2026-04-06)
  2. United Nations | World Population Prospects (1961–2026, retrieved 2026-03-10)
  3. U.S. Census Bureau (1961–2025, retrieved 2026-02-08)
  4. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20)
  5. Wikidata (2022–2025, retrieved 2026-02-08)

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