Skip to content

Population in Slovenia compared to Tonga: Trends, Charts, Rankings

Updated on by Georank team

The latest officially reported population of Slovenia was 2,127,400 in 2024 vs 104,175 people in Tonga in 2024. In 2026, based on the adjusted UN estimation, the current Slovenia's population is 2,124,138 people compared to 103,309 in Tonga.

Population statistics:

  • Slovenia's population is 20.6 times bigger than Tonga's.
  • Slovenia is ranked the 147th most populous country in the world, while Tonga is the 183rd.
  • The countries together account for 0.03% of the world: 0.03% for Slovenia vs 0.001% for Tonga.
  • For the last 10 years, Slovenia has had an average growth rate of +0.29% per year vs -0.25% in Tonga.
  • Since 2006, the population of Slovenia has increased from 2.01M people to 2.12M (5.84% growth), while Tonga has declined from 106K to 103K (2.77% decline).

Slovenia vs Tonga: population by year and forecast

Slovenia
Factual

Projection
Tonga
Factual

Projection
1x
Year Population
Slovenia Tonga
2100 1,640,541 117,647
2099 1,644,752 117,615
2098 1,648,834 117,560
2097 1,653,196 117,522
2096 1,657,434 117,491
2095 1,661,656 117,414
2094 1,665,825 117,321
2093 1,670,076 117,237
2092 1,674,280 117,127
2091 1,678,462 117,013
2090 1,682,998 116,869
2089 1,687,376 116,712
2088 1,691,788 116,511
2087 1,696,409 116,307
2086 1,701,325 116,118
2085 1,706,189 115,902
2084 1,711,157 115,658
2083 1,716,396 115,366
2082 1,721,709 115,071
2081 1,727,302 114,782
2080 1,733,405 114,453
2079 1,739,518 114,103
2078 1,746,152 113,740
2077 1,752,783 113,378
2076 1,759,639 112,974
2075 1,766,867 112,594
2074 1,774,528 112,208
2073 1,782,697 111,819
2072 1,790,658 111,405
2071 1,798,960 110,992
2070 1,807,483 110,605
2069 1,816,607 110,238
2068 1,825,849 109,853
2067 1,834,865 109,474
2066 1,844,034 109,090
2065 1,853,651 108,765
2064 1,863,550 108,405
2063 1,873,173 108,061
2062 1,882,832 107,738
2061 1,892,739 107,424
2060 1,902,939 107,145
2059 1,912,861 106,869
2058 1,922,175 106,617
2057 1,932,119 106,372
2056 1,941,469 106,158
2055 1,950,861 105,942
2054 1,959,953 105,725
2053 1,968,641 105,513
2052 1,977,227 105,313
2051 1,985,279 105,106
2050 1,993,115 104,871
2049 2,000,477 104,663
2048 2,007,283 104,414
2047 2,014,140 104,180
2046 2,020,756 103,879
2045 2,027,366 103,575
2044 2,033,871 103,241
2043 2,040,173 102,961
2042 2,046,339 102,718
2041 2,052,041 102,474
2040 2,057,278 102,254
2039 2,062,718 102,088
2038 2,067,922 101,861
2037 2,073,705 101,733
2036 2,079,201 101,653
2035 2,084,471 101,607
2034 2,089,430 101,598
2033 2,094,601 101,618
2032 2,099,622 101,659
2031 2,104,690 101,790
2030 2,109,416 101,954
2029 2,113,874 102,207
2028 2,118,053 102,521
2027 2,121,324 102,868
2026 2,124,138 103,309
2025 2,126,340 103,768
2024 2,127,400 104,175
2023 2,120,461 104,597
2022 2,112,076 105,042
2021 2,108,079 105,490
2020 2,102,419 105,704
2019 2,088,385 105,669
2018 2,073,894 105,567
2017 2,066,388 105,356
2016 2,065,042 105,524
2015 2,063,531 106,095
2014 2,061,980 106,609
2013 2,059,953 107,078
2012 2,057,159 107,460
2011 2,052,843 107,570
2010 2,048,583 107,400
2009 2,039,669 107,203
2008 2,021,316 107,020
2007 2,018,122 106,726
2006 2,006,868 106,253
2005 2,000,474 105,671
2004 1,997,012 105,071
2003 1,995,733 104,464
2002 1,994,530 103,874
2001 1,992,060 103,288
2000 1,988,925 102,677
1999 1,983,045 102,046
1998 1,981,629 101,388
1997 1,985,956 100,674
1996 1,988,628 100,275
1995 1,989,872 100,225
1994 1,989,443 100,166
1993 1,991,746 100,103
1992 1,996,498 100,022
1991 1,999,429 99,895
1990 1,998,161 99,700
1989 1,996,351 99,403
1988 1,995,196 98,969
1987 1,989,776 98,376
1986 1,965,964 98,010
1985 1,941,641 97,984
1984 1,932,154 97,990
1983 1,922,321 97,998
1982 1,910,334 97,980
1981 1,906,531 97,909
1980 1,901,315 97,769
1979 1,882,599 97,544
1978 1,862,548 97,204
1977 1,842,377 96,725
1976 1,820,249 95,325
1975 1,793,581 93,017
1974 1,776,132 90,683
1973 1,766,697 88,805
1972 1,752,233 87,356
1971 1,738,335 85,896
1970 1,724,891 84,401
1969 1,713,874 82,885
1968 1,704,546 81,353
1967 1,689,528 79,814
1966 1,669,905 78,002
1965 1,649,160 75,924
1964 1,632,114 73,879
1963 1,616,971 71,885
1962 1,603,649 69,940
1961 1,594,131 68,037
1960 1,584,720 66,170

Data sources: United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); World Bank | Health (1960–2024, retrieved 2026-04-06).

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

From 2006 to 2016, the population of Slovenia increased by 58,174 people (a 2.9% growth), while Tonga lost 729 people (a 0.69% decline).

For the next 10 years, from 2016 to 2026, Slovenia gained 59,096 people (a 2.86% growth), while Tonga's population decreased by 2,215 people (a 2.1% decline).

Slovenia was ranked 141st most populous country in 2006 and is 147th 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) Slovenia's population will shrink by 6.17% to 1,993,115 people and will still be ranked 147th. The population of Tonga will increase by 1.51% to 104,871 people and will still be ranked 183rd.

Tonga is projected to reach its peak in 2100 at 118K people, while Slovenia's population already peaked in 2024 at 2.13M people and is projected to decrease to 1.64M people by 2100.

Population growth rate by year

Slovenia
Factual

Projection
Tonga
Factual

Projection
1x
Year Growth rate
Slovenia Tonga
2100 -0.26% 0.03%
2099 -0.25% 0.05%
2098 -0.26% 0.03%
2097 -0.26% 0.03%
2096 -0.25% 0.07%
2095 -0.25% 0.08%
2094 -0.25% 0.07%
2093 -0.25% 0.09%
2092 -0.25% 0.1%
2091 -0.27% 0.12%
2090 -0.26% 0.13%
2089 -0.26% 0.17%
2088 -0.27% 0.18%
2087 -0.29% 0.16%
2086 -0.29% 0.19%
2085 -0.29% 0.21%
2084 -0.31% 0.25%
2083 -0.31% 0.26%
2082 -0.32% 0.25%
2081 -0.35% 0.29%
2080 -0.35% 0.31%
2079 -0.38% 0.32%
2078 -0.38% 0.32%
2077 -0.39% 0.36%
2076 -0.41% 0.34%
2075 -0.43% 0.34%
2074 -0.46% 0.35%
2073 -0.44% 0.37%
2072 -0.46% 0.37%
2071 -0.47% 0.35%
2070 -0.5% 0.33%
2069 -0.51% 0.35%
2068 -0.49% 0.35%
2067 -0.5% 0.35%
2066 -0.52% 0.3%
2065 -0.53% 0.33%
2064 -0.51% 0.32%
2063 -0.51% 0.3%
2062 -0.52% 0.29%
2061 -0.54% 0.26%
2060 -0.52% 0.26%
2059 -0.48% 0.24%
2058 -0.51% 0.23%
2057 -0.48% 0.2%
2056 -0.48% 0.2%
2055 -0.46% 0.2%
2054 -0.44% 0.2%
2053 -0.43% 0.19%
2052 -0.41% 0.2%
2051 -0.39% 0.22%
2050 -0.37% 0.2%
2049 -0.34% 0.24%
2048 -0.34% 0.22%
2047 -0.33% 0.29%
2046 -0.33% 0.29%
2045 -0.32% 0.32%
2044 -0.31% 0.27%
2043 -0.3% 0.24%
2042 -0.28% 0.24%
2041 -0.25% 0.21%
2040 -0.26% 0.16%
2039 -0.25% 0.22%
2038 -0.28% 0.13%
2037 -0.26% 0.08%
2036 -0.25% 0.05%
2035 -0.24% 0.009%
2034 -0.25% -0.02%
2033 -0.24% -0.04%
2032 -0.24% -0.13%
2031 -0.22% -0.16%
2030 -0.21% -0.25%
2029 -0.2% -0.31%
2028 -0.15% -0.34%
2027 -0.13% -0.43%
2026 -0.1% -0.44%
2025 -0.05% -0.39%
2024 0.33% -0.4%
2023 0.4% -0.42%
2022 0.19% -0.42%
2021 0.27% -0.2%
2020 0.67% 0.03%
2019 0.7% 0.1%
2018 0.36% 0.2%
2017 0.07% -0.16%
2016 0.07% -0.54%
2015 0.08% -0.48%
2014 0.1% -0.44%
2013 0.14% -0.36%
2012 0.21% -0.1%
2011 0.21% 0.16%
2010 0.44% 0.18%
2009 0.91% 0.17%
2008 0.16% 0.28%
2007 0.56% 0.45%
2006 0.32% 0.55%
2005 0.17% 0.57%
2004 0.06% 0.58%
2003 0.06% 0.57%
2002 0.12% 0.57%
2001 0.16% 0.6%
2000 0.3% 0.62%
1999 0.07% 0.65%
1998 -0.22% 0.71%
1997 -0.13% 0.4%
1996 -0.06% 0.05%
1995 0.02% 0.06%
1994 -0.12% 0.06%
1993 -0.24% 0.08%
1992 -0.15% 0.13%
1991 0.06% 0.2%
1990 0.09% 0.3%
1989 0.06% 0.44%
1988 0.27% 0.6%
1987 1.21% 0.37%
1986 1.25% 0.03%
1985 0.49% -0.006%
1984 0.51% -0.008%
1983 0.63% 0.02%
1982 0.2% 0.07%
1981 0.27% 0.14%
1980 0.99% 0.23%
1979 1.08% 0.35%
1978 1.09% 0.5%
1977 1.22% 1.47%
1976 1.49% 2.48%
1975 0.98% 2.57%
1974 0.53% 2.11%
1973 0.83% 1.66%
1972 0.8% 1.7%
1971 0.78% 1.77%
1970 0.64% 1.83%
1969 0.55% 1.88%
1968 0.89% 1.93%
1967 1.18% 2.32%
1966 1.26% 2.74%
1965 1.04% 2.77%
1964 0.94% 2.77%
1963 0.83% 2.78%
1962 0.6% 2.8%
1961 0.59% 2.82%

Data sources: United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); World Bank | Health (1961–2024, retrieved 2026-04-06).

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

In 2024, the population of Slovenia grew by 0.33%, while Tonga's population declined by 0.4%.

Live population counters

Slovenia Tonga
Current population
2124138
103309
Population rank 147/197 183/197
Percent of world population 0.03% 0.001%
One net population change
1.26 hours
20.8 hours
One birth every
31 minutes
3.62 hours
One death every
24.3 minutes
13 hours
Daily growth/decline +19 -1
Annual growth/decline +6,939 -422
Annual growth/decline rate +0.33% -0.4%
Population growth rate rank 148/197 183/197
One migration net change every
3.24 hours
4.09 hours
Annual migration change +2,711 -2,150
Net migration rank 55/196 99/196
Foreign-born residents 315,122 3,581
Foreign-born residents rank 97/195 187/195
Foreign-born share of population 14.9% 3.4%
Foreign-born share rank 44/195 113/195

Natural population change vs migration

Slovenia
Natural

Migration
Tonga
Natural

Migration
1x
Year Population change
Slovenia Tonga
Natural Migration Natural Migration
2025 - 2,711 - -2,150
2024 - 3,319 - -2,149
2023 -4,665 5,339 1,744 -2,173
2022 -4,858 9,014 1,772 -2,218
2021 -4,216 2,477 1,773 -2,220
2020 -5,256 28,514 1,816 -1,807
2019 -1,254 16,352 1,841 -1,778
2018 -1,037 14,640 1,873 -1,723
2017 -207 1,359 1,912 -1,642
2016 826 1,195 1,989 -2,591
2015 826 712 2,064 -2,610
2014 2,268 -70 2,135 -2,622
2013 1,648 639 2,199 -2,637
2012 2,674 1,117 2,255 -2,578
2011 3,285 2,190 2,298 -2,198
2010 3,687 -410 2,332 -2,097
2009 3,060 11,594 2,358 -2,204
2008 3,437 2,971 2,397 -2,177
2007 1,211 14,191 2,423 -2,057
2006 602 6,081 2,459 -1,875
2005 -600 6,317 2,495 -1,906
2004 -599 1,759 2,478 -1,876
2003 -1,996 3,218 2,448 -1,844
2002 -1,197 1,975 2,396 -1,815
2001 -996 4,527 2,358 -1,766
2000 -398 3,124 2,346 -1,721
1999 -1,388 10,291 2,352 -1,710
1998 -1,189 -5,280 2,344 -1,665
1997 -794 -1,298 2,332 -1,589
1996 0 -2,456 2,393 -2,338
1995 0 356 2,476 -2,422
1994 199 -153 2,547 -2,484
1993 -199 -4,641 2,594 -2,532
1992 598 -5,547 2,622 -2,524
1991 2,199 -3,325 2,637 -2,484
1990 3,797 618 2,641 -2,409
1989 4,592 -2,718 2,644 -2,280
1988 5,986 -3,023 2,649 -2,138
1987 5,771 2,972 2,646 -1,970
1986 6,094 32,700 2,704 -2,650
1985 6,213 3,404 2,762 -2,775
1984 5,990 3,280 2,814 -2,823
1983 6,343 3,613 2,840 -2,840
1982 9,170 -8,695 2,853 -2,814
1981 10,485 -5,016 2,882 -2,778
1980 11,027 3,128 2,885 -2,708
1979 12,614 2,107 2,884 -2,604
1978 11,920 2,113 2,862 -2,457
1977 12,160 2,584 2,822 -2,273
1976 12,196 2,226 2,769 -523
1975 11,658 2,421 2,709 -346
1974 11,367 3,145 2,650 -344
1973 11,837 2,175 2,617 -1,168
1972 10,513 2,924 2,605 -1,153
1971 10,951 2,286 2,611 -1,138
1970 10,004 260 2,628 -1,122
1969 9,427 685 2,632 -1,101
1968 11,250 438 2,614 -1,078
1967 13,516 -192 2,603 -1,060
1966 15,697 -1,262 2,550 -465
1965 14,513 -1,421 2,498 -426
1964 12,567 -349 2,445 -428
1963 14,068 -180 2,394 -426
1962 13,150 148 2,343 -420
1961 14,985 -306 2,284 -401
1960 12,678 -929 2,230 -384

Data sources: World Bank | Health (1960–2025, retrieved 2026-04-06).

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

Over the last 10 years, 18.1% of the population change in Slovenia is from natural causes (a loss of 17,573 people) and 81.9% is from migration (a gain of 79,532 people). In Tonga 46.9% is from natural causes (a gain of 18,919 people) and 53.1% is from migration (a loss of 21,384 people).

As of 2024, 315,122 residents or 14.9% of the population were not native-born in Slovenia, compared to 3,581 people or 3.4% in Tonga.

Biggest cities by population

Slovenia
City Population
Ljubljana 284K
Maribor 114K
Kranj 37.6K
Celje 37.1K
Velenje 25.6K
Novo Mesto 24.2K
Nova Gorica 13K
Izola 11.7K
Murska Sobota 11.2K
Piran 3.79K
Tonga
City Population
Nukualofa 23.2K
Mua 5K

Compare countries by 7 more topics

Population map with other countries

1x

Data sources: World Bank | Health (1960–2024, retrieved 2026-04-06); United Nations | World Population Prospects (1960–2026, retrieved 2026-03-10); U.S. Census Bureau (1960–2025, retrieved 2026-02-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20).

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

Help us show the world through your eyes

Share a photo of your city and help others discover what it looks like to live there. Your contribution makes our data come alive.

Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-04-06)
  2. United Nations | World Population Prospects (1960–2100, retrieved 2026-03-10)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-02-08)
  4. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20)
  5. Wikidata (2026, retrieved 2026-02-08)

Creative Commons Attribution (CC BY) — you’re free to copy, share, remix, adapt, and use even commercially as long as you give appropriate credit and clearly indicate if you made changes. Other sources may be subject to different license terms.