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

Updated on by Georank team

The latest officially reported population of Belgium was 11,858,610 in 2024 vs 2,127,400 people in Slovenia in 2024. In 2026, based on the adjusted UN estimation, the current Belgium's population is 11,902,714 people compared to 2,124,138 in Slovenia.

Population statistics:

  • Belgium's population is 5.6 times bigger than Slovenia's.
  • Belgium is ranked the 83rd most populous country in the world, while Slovenia is the 147th.
  • The countries together account for 0.17% of the world: 0.14% for Belgium vs 0.03% for Slovenia.
  • For the last 10 years, Belgium has had an average growth rate of +0.55% per year vs +0.29% in Slovenia.
  • Since 2006, the population of Belgium has increased from 10.5M people to 11.9M (12.8% growth), while Slovenia has grown from 2.01M to 2.12M (5.84% growth).

Belgium vs Slovenia: population by year and forecast

Belgium
Factual

Projection
Slovenia
Factual

Projection
1x
Year Population
Belgium Slovenia
2100 11,193,616 1,640,541
2099 11,211,908 1,644,752
2098 11,230,002 1,648,834
2097 11,246,180 1,653,196
2096 11,261,636 1,657,434
2095 11,277,513 1,661,656
2094 11,293,934 1,665,825
2093 11,309,421 1,670,076
2092 11,325,500 1,674,280
2091 11,339,887 1,678,462
2090 11,354,304 1,682,998
2089 11,368,748 1,687,376
2088 11,384,019 1,691,788
2087 11,399,441 1,696,409
2086 11,413,731 1,701,325
2085 11,427,305 1,706,189
2084 11,441,192 1,711,157
2083 11,454,476 1,716,396
2082 11,468,827 1,721,709
2081 11,480,917 1,727,302
2080 11,494,860 1,733,405
2079 11,507,804 1,739,518
2078 11,522,057 1,746,152
2077 11,534,819 1,752,783
2076 11,546,262 1,759,639
2075 11,558,154 1,766,867
2074 11,571,164 1,774,528
2073 11,584,391 1,782,697
2072 11,597,605 1,790,658
2071 11,611,079 1,798,960
2070 11,627,079 1,807,483
2069 11,643,296 1,816,607
2068 11,660,663 1,825,849
2067 11,677,909 1,834,865
2066 11,696,417 1,844,034
2065 11,716,114 1,853,651
2064 11,736,957 1,863,550
2063 11,758,738 1,873,173
2062 11,780,812 1,882,832
2061 11,804,421 1,892,739
2060 11,825,799 1,902,939
2059 11,847,336 1,912,861
2058 11,867,449 1,922,175
2057 11,890,466 1,932,119
2056 11,911,901 1,941,469
2055 11,931,594 1,950,861
2054 11,950,146 1,959,953
2053 11,968,395 1,968,641
2052 11,984,694 1,977,227
2051 11,998,099 1,985,279
2050 12,008,766 1,993,115
2049 12,017,817 2,000,477
2048 12,024,879 2,007,283
2047 12,029,815 2,014,140
2046 12,032,975 2,020,756
2045 12,034,718 2,027,366
2044 12,034,116 2,033,871
2043 12,032,908 2,040,173
2042 12,030,714 2,046,339
2041 12,026,814 2,052,041
2040 12,023,124 2,057,278
2039 12,018,547 2,062,718
2038 12,012,586 2,067,922
2037 12,005,650 2,073,705
2036 11,999,298 2,079,201
2035 11,992,761 2,084,471
2034 11,985,730 2,089,430
2033 11,977,334 2,094,601
2032 11,969,302 2,099,622
2031 11,960,910 2,104,690
2030 11,951,381 2,109,416
2029 11,939,712 2,113,874
2028 11,927,038 2,118,053
2027 11,913,457 2,121,324
2026 11,898,731 2,124,138
2025 11,881,020 2,126,340
2024 11,858,610 2,127,400
2023 11,779,946 2,120,461
2022 11,680,210 2,112,076
2021 11,586,195 2,108,079
2020 11,538,604 2,102,419
2019 11,488,980 2,088,385
2018 11,427,054 2,073,894
2017 11,375,158 2,066,388
2016 11,331,422 2,065,042
2015 11,274,196 2,063,531
2014 11,209,057 2,061,980
2013 11,159,407 2,059,953
2012 11,106,932 2,057,159
2011 11,038,264 2,052,843
2010 10,895,586 2,048,583
2009 10,796,493 2,039,669
2008 10,709,973 2,021,316
2007 10,625,700 2,018,122
2006 10,547,958 2,006,868
2005 10,478,617 2,000,474
2004 10,421,137 1,997,012
2003 10,376,133 1,995,733
2002 10,332,785 1,994,530
2001 10,286,570 1,992,060
2000 10,251,250 1,988,925
1999 10,226,419 1,983,045
1998 10,203,008 1,981,629
1997 10,181,245 1,985,956
1996 10,156,637 1,988,628
1995 10,136,811 1,989,872
1994 10,115,603 1,989,443
1993 10,084,475 1,991,746
1992 10,045,158 1,996,498
1991 10,004,486 1,999,429
1990 9,967,379 1,998,161
1989 9,937,697 1,996,351
1988 9,901,664 1,995,196
1987 9,870,234 1,989,776
1986 9,861,823 1,965,964
1985 9,858,308 1,941,641
1984 9,855,372 1,932,154
1983 9,855,520 1,922,321
1982 9,856,303 1,910,334
1981 9,858,982 1,906,531
1980 9,859,242 1,901,315
1979 9,848,382 1,882,599
1978 9,839,534 1,862,548
1977 9,830,358 1,842,377
1976 9,818,227 1,820,249
1975 9,800,700 1,793,581
1974 9,772,419 1,776,132
1973 9,741,720 1,766,697
1972 9,711,115 1,752,233
1971 9,673,162 1,738,335
1970 9,655,549 1,724,891
1969 9,646,032 1,713,874
1968 9,618,756 1,704,546
1967 9,580,991 1,689,528
1966 9,527,807 1,669,905
1965 9,463,667 1,649,160
1964 9,378,113 1,632,114
1963 9,289,770 1,616,971
1962 9,220,578 1,603,649
1961 9,183,948 1,594,131
1960 9,153,489 1,584,720

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/belgium/slovenia | CC BY

From 2006 to 2016, the population of Belgium increased by 783,464 people (a 7.43% growth), while Slovenia gained 58,174 people (a 2.9% growth).

For the next 10 years, from 2016 to 2026, Belgium gained 571,292 people (a 5.04% growth), while Slovenia's population increased by 59,096 people (a 2.86% growth).

Belgium was ranked 77th most populous country in 2006 and is 83rd in 2026. Slovenia was ranked 141st in 2006 and ranked 147th now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Belgium's population will grow by 0.89% to 12,008,766 people with a rank change from 83rd to 92nd. The population of Slovenia will decrease by 6.17% to 1,993,115 people and will still be ranked 147th.

Belgium is projected to reach its peak in 2045 at 12M 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

Belgium
Factual

Projection
Slovenia
Factual

Projection
1x
Year Growth rate
Belgium Slovenia
2100 -0.16% -0.26%
2099 -0.16% -0.25%
2098 -0.14% -0.26%
2097 -0.14% -0.26%
2096 -0.14% -0.25%
2095 -0.15% -0.25%
2094 -0.14% -0.25%
2093 -0.14% -0.25%
2092 -0.13% -0.25%
2091 -0.13% -0.27%
2090 -0.13% -0.26%
2089 -0.13% -0.26%
2088 -0.14% -0.27%
2087 -0.13% -0.29%
2086 -0.12% -0.29%
2085 -0.12% -0.29%
2084 -0.12% -0.31%
2083 -0.13% -0.31%
2082 -0.11% -0.32%
2081 -0.12% -0.35%
2080 -0.11% -0.35%
2079 -0.12% -0.38%
2078 -0.11% -0.38%
2077 -0.1% -0.39%
2076 -0.1% -0.41%
2075 -0.11% -0.43%
2074 -0.11% -0.46%
2073 -0.11% -0.44%
2072 -0.12% -0.46%
2071 -0.14% -0.47%
2070 -0.14% -0.5%
2069 -0.15% -0.51%
2068 -0.15% -0.49%
2067 -0.16% -0.5%
2066 -0.17% -0.52%
2065 -0.18% -0.53%
2064 -0.19% -0.51%
2063 -0.19% -0.51%
2062 -0.2% -0.52%
2061 -0.18% -0.54%
2060 -0.18% -0.52%
2059 -0.17% -0.48%
2058 -0.19% -0.51%
2057 -0.18% -0.48%
2056 -0.17% -0.48%
2055 -0.16% -0.46%
2054 -0.15% -0.44%
2053 -0.14% -0.43%
2052 -0.11% -0.41%
2051 -0.09% -0.39%
2050 -0.08% -0.37%
2049 -0.06% -0.34%
2048 -0.04% -0.34%
2047 -0.03% -0.33%
2046 -0.01% -0.33%
2045 0.005% -0.32%
2044 0.01% -0.31%
2043 0.02% -0.3%
2042 0.03% -0.28%
2041 0.03% -0.25%
2040 0.04% -0.26%
2039 0.05% -0.25%
2038 0.06% -0.28%
2037 0.05% -0.26%
2036 0.05% -0.25%
2035 0.06% -0.24%
2034 0.07% -0.25%
2033 0.07% -0.24%
2032 0.07% -0.24%
2031 0.08% -0.22%
2030 0.1% -0.21%
2029 0.11% -0.2%
2028 0.11% -0.15%
2027 0.12% -0.13%
2026 0.15% -0.1%
2025 0.19% -0.05%
2024 0.67% 0.33%
2023 0.85% 0.4%
2022 0.81% 0.19%
2021 0.41% 0.27%
2020 0.43% 0.67%
2019 0.54% 0.7%
2018 0.46% 0.36%
2017 0.39% 0.07%
2016 0.51% 0.07%
2015 0.58% 0.08%
2014 0.44% 0.1%
2013 0.47% 0.14%
2012 0.62% 0.21%
2011 1.31% 0.21%
2010 0.92% 0.44%
2009 0.81% 0.91%
2008 0.79% 0.16%
2007 0.74% 0.56%
2006 0.66% 0.32%
2005 0.55% 0.17%
2004 0.43% 0.06%
2003 0.42% 0.06%
2002 0.45% 0.12%
2001 0.34% 0.16%
2000 0.24% 0.3%
1999 0.23% 0.07%
1998 0.21% -0.22%
1997 0.24% -0.13%
1996 0.2% -0.06%
1995 0.21% 0.02%
1994 0.31% -0.12%
1993 0.39% -0.24%
1992 0.41% -0.15%
1991 0.37% 0.06%
1990 0.3% 0.09%
1989 0.36% 0.06%
1988 0.32% 0.27%
1987 0.09% 1.21%
1986 0.04% 1.25%
1985 0.03% 0.49%
1984 -0.002% 0.51%
1983 -0.008% 0.63%
1982 -0.03% 0.2%
1981 -0.003% 0.27%
1980 0.11% 0.99%
1979 0.09% 1.08%
1978 0.09% 1.09%
1977 0.12% 1.22%
1976 0.18% 1.49%
1975 0.29% 0.98%
1974 0.32% 0.53%
1973 0.32% 0.83%
1972 0.39% 0.8%
1971 0.18% 0.78%
1970 0.1% 0.64%
1969 0.28% 0.55%
1968 0.39% 0.89%
1967 0.56% 1.18%
1966 0.68% 1.26%
1965 0.91% 1.04%
1964 0.95% 0.94%
1963 0.75% 0.83%
1962 0.4% 0.6%
1961 0.33% 0.59%

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/belgium/slovenia | CC BY

In 2024, the population of Belgium grew by 0.67%, while Slovenia's population grew by 0.33%.

Live population counters

Belgium Slovenia
Current population
11902714
2124138
Population rank 83/197 147/197
Percent of world population 0.14% 0.03%
One net population change
6.68 minutes
1.26 hours
One birth every
4.75 minutes
31 minutes
One death every
4.75 minutes
24.3 minutes
Daily growth/decline +216 +19
Annual growth/decline +78,664 +6,939
Annual growth/decline rate +0.67% +0.33%
Population growth rate rank 119/197 148/197
One migration net change every
16.5 minutes
3.24 hours
Annual migration change +31,989 +2,711
Net migration rank 28/196 55/196
Foreign-born residents 2,349,032 315,122
Foreign-born residents rank 30/195 97/195
Foreign-born share of population 20% 14.9%
Foreign-born share rank 30/195 44/195

Natural population change vs migration

Belgium
Natural

Migration
Slovenia
Natural

Migration
1x
Year Population change
Belgium Slovenia
Natural Migration Natural Migration
2025 - 31,989 - 2,711
2024 - 36,243 - 3,319
2023 0 41,679 -4,665 5,339
2022 -2,336 118,615 -4,858 9,014
2021 5,793 24,017 -4,216 2,477
2020 -12,692 43,777 -5,256 28,514
2019 8,042 58,469 -1,254 16,352
2018 7,999 50,604 -1,037 14,640
2017 10,238 37,981 -207 1,359
2016 14,731 28,090 826 1,195
2015 11,274 63,536 826 712
2014 21,297 37,472 2,268 -70
2013 16,739 28,066 1,648 639
2012 18,882 45,001 2,674 1,117
2011 25,388 52,464 3,285 2,190
2010 23,970 105,232 3,687 -410
2009 23,752 97,175 3,060 11,594
2008 22,491 66,470 3,437 2,971
2007 23,376 59,911 1,211 14,191
2006 21,096 53,574 602 6,081
2005 15,718 50,576 -600 6,317
2004 16,673 35,143 -599 1,759
2003 7,263 34,472 -1,996 3,218
2002 7,233 39,404 -1,197 1,975
2001 11,315 34,924 -996 4,527
2000 12,302 13,952 -398 3,124
1999 9,203 16,849 -1,388 10,291
1998 9,183 12,517 -1,189 -5,280
1997 12,218 10,262 -794 -1,298
1996 12,188 15,684 0 -2,456
1995 11,150 1,937 0 356
1994 12,139 17,636 199 -153
1993 14,118 18,542 -199 -4,641
1992 20,090 25,941 598 -5,547
1991 22,010 27,038 2,199 -3,325
1990 19,935 8,299 3,797 618
1989 13,912 7,301 4,592 -2,718
1988 14,853 3,929 5,986 -3,023
1987 11,844 3,525 5,771 2,972
1986 5,917 2,964 6,094 32,700
1985 2,958 2,165 6,213 3,404
1984 4,927 1,697 5,990 3,280
1983 2,956 1,252 6,343 3,613
1982 7,885 1,100 9,170 -8,695
1981 11,831 2,826 10,485 -5,016
1980 10,845 11,482 11,027 3,128
1979 11,818 11,277 12,614 2,107
1978 7,872 10,828 11,920 2,113
1977 8,847 10,460 12,160 2,584
1976 1,964 10,360 12,196 2,226
1975 0 9,652 11,658 2,421
1974 7,818 8,924 11,367 3,145
1973 11,690 8,684 11,837 2,175
1972 18,451 8,384 10,513 2,924
1971 21,281 7,992 10,951 2,286
1970 23,173 19,393 10,004 260
1969 21,221 20,072 9,427 685
1968 20,199 19,809 11,250 438
1967 31,618 19,492 13,516 -192
1966 36,206 18,985 15,697 -1,262
1965 39,748 18,243 14,513 -1,421
1964 51,580 17,687 12,567 -349
1963 41,804 16,355 14,068 -180
1962 42,414 14,829 13,150 148
1961 52,349 10,566 14,985 -306
1960 40,275 9,893 12,678 -929

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

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

Over the last 10 years, 11.3% of the population change in Belgium is from natural causes (a gain of 64,346 people) and 88.7% is from migration (a gain of 504,240 people). In Slovenia 18.1% is from natural causes (a loss of 17,573 people) and 81.9% is from migration (a gain of 79,532 people).

As of 2024, 2,349,032 residents or 20% of the population were not native-born in Belgium, compared to 315,122 people or 14.9% in Slovenia.

Biggest cities by population

Belgium
City Population
Brussels 1.25M
Antwerp 529K
Ghent 273K
Charleroi 204K
Liege 195K
Schaerbeek 133K
Anderlecht 121K
Bruges 119K
Namur 115K
Leuven 101K
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

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/belgium/slovenia | CC BY

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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. Wikidata (2026, retrieved 2026-02-08)
  5. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20)

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