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

Updated on by Georank

The latest officially reported population of Belgium was 11,941,781 in 2025 vs 71,619,863 people in Thailand in 2025. In 2026, based on the adjusted UN estimation, the current Belgium's population is 11,967,185 people compared to 71,565,981 in Thailand.

Population statistics:

  • Thailand's population is 5.98 times bigger than Belgium's.
  • Belgium is ranked the 83rd most populous country in the world, while Thailand is the 21st.
  • The countries together account for 1.01% of the world: 0.14% for Belgium vs 0.86% for Thailand.
  • For the last 10 years, Belgium has had an average growth rate of +0.58% per year vs +0.18% in Thailand.
  • Since 2006, the population of Belgium has increased from 10.5M people to 12M (13.5% growth), while Thailand has grown from 66.6M to 71.6M (7.51% growth).

Belgium vs Thailand: population by year and forecast

Belgium
Factual

Projection
Thailand
Factual

Projection
1x
Year Population
Belgium Thailand
2100 11,250,862 45,708,431
2099 11,269,247 46,053,146
2098 11,287,433 46,403,189
2097 11,303,694 46,757,918
2096 11,319,229 47,118,652
2095 11,335,187 47,484,043
2094 11,351,692 47,853,561
2093 11,367,258 48,226,682
2092 11,383,419 48,605,235
2091 11,397,881 48,984,504
2090 11,412,370 49,368,049
2089 11,426,889 49,756,629
2088 11,442,238 50,142,276
2087 11,457,739 50,532,164
2086 11,472,102 50,925,294
2085 11,485,745 51,321,960
2084 11,499,703 51,724,454
2083 11,513,055 52,127,592
2082 11,527,480 52,533,368
2081 11,539,632 52,938,345
2080 11,553,646 53,347,733
2079 11,566,656 53,762,492
2078 11,580,982 54,177,529
2077 11,593,809 54,595,112
2076 11,605,311 55,015,291
2075 11,617,264 55,438,108
2074 11,630,340 55,867,914
2073 11,643,635 56,300,358
2072 11,656,916 56,735,274
2071 11,670,459 57,172,515
2070 11,686,541 57,616,731
2069 11,702,841 58,061,962
2068 11,720,297 58,512,248
2067 11,737,631 58,962,990
2066 11,756,233 59,413,893
2065 11,776,031 59,873,261
2064 11,796,981 60,331,851
2063 11,818,873 60,792,306
2062 11,841,060 61,257,068
2061 11,864,790 61,720,030
2060 11,886,277 62,187,380
2059 11,907,924 62,651,158
2058 11,928,140 63,113,332
2057 11,951,275 63,572,746
2056 11,972,819 64,027,520
2055 11,992,614 64,473,146
2054 12,011,260 64,912,210
2053 12,029,602 65,338,122
2052 12,045,984 65,758,061
2051 12,059,458 66,162,612
2050 12,070,180 66,552,915
2049 12,079,277 66,931,487
2048 12,086,376 67,291,479
2047 12,091,336 67,636,461
2046 12,094,512 67,967,131
2045 12,096,264 68,281,902
2044 12,095,660 68,579,656
2043 12,094,445 68,864,788
2042 12,092,240 69,133,982
2041 12,088,320 69,390,832
2040 12,084,611 69,626,857
2039 12,080,011 69,848,522
2038 12,074,019 70,056,903
2037 12,067,048 70,250,371
2036 12,060,663 70,429,677
2035 12,054,093 70,599,021
2034 12,047,026 70,751,094
2033 12,038,587 70,891,510
2032 12,030,514 71,019,665
2031 12,022,079 71,134,882
2030 12,012,501 71,241,584
2029 12,000,773 71,337,147
2028 11,988,034 71,423,119
2027 11,974,384 71,499,411
2026 11,959,583 71,565,981
2025 11,941,781 71,619,863
2024 11,858,610 71,668,011
2023 11,779,946 71,702,435
2022 11,680,210 71,735,329
2021 11,586,195 71,727,332
2020 11,538,604 71,641,484
2019 11,488,980 71,522,271
2018 11,427,054 71,376,079
2017 11,375,158 71,160,187
2016 11,331,422 70,859,841
2015 11,274,196 70,540,795
2014 11,209,057 70,216,367
2013 11,159,407 69,845,114
2012 11,106,932 69,436,098
2011 11,038,264 69,007,208
2010 10,895,586 68,579,447
2009 10,796,493 68,121,080
2008 10,709,973 67,619,830
2007 10,625,700 67,102,394
2006 10,547,958 66,567,687
2005 10,478,617 66,017,420
2004 10,421,137 65,452,047
2003 10,376,133 64,868,166
2002 10,332,785 64,266,437
2001 10,286,570 63,651,141
2000 10,251,250 63,007,815
1999 10,226,419 62,299,043
1998 10,203,008 61,522,630
1997 10,181,245 60,724,584
1996 10,156,637 59,920,064
1995 10,136,811 59,098,232
1994 10,115,603 58,260,854
1993 10,084,475 57,408,198
1992 10,045,158 56,528,834
1991 10,004,486 55,637,434
1990 9,967,379 54,738,329
1989 9,937,697 53,848,956
1988 9,901,664 52,969,595
1987 9,870,234 52,074,105
1986 9,861,823 51,177,834
1985 9,858,308 50,270,753
1984 9,855,372 49,351,708
1983 9,855,520 48,423,309
1982 9,856,303 47,494,577
1981 9,858,982 46,575,855
1980 9,859,242 45,650,022
1979 9,848,382 44,718,434
1978 9,839,534 43,788,976
1977 9,830,358 42,843,974
1976 9,818,227 41,896,504
1975 9,800,700 40,940,005
1974 9,772,419 39,952,891
1973 9,741,720 38,947,787
1972 9,711,115 37,933,929
1971 9,673,162 36,937,387
1970 9,655,549 35,954,408
1969 9,646,032 34,973,782
1968 9,618,756 34,002,560
1967 9,580,991 33,037,801
1966 9,527,807 32,086,071
1965 9,463,667 31,149,337
1964 9,378,113 30,232,141
1963 9,289,770 29,342,322
1962 9,220,578 28,481,040
1961 9,183,948 27,650,334
1960 9,153,489 26,851,747

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/belgium/thailand | CC BY

From 2006 to 2016, the population of Belgium increased by 783,464 people (a 7.43% growth), while Thailand gained 4,292,154 people (a 6.45% growth).

For the next 10 years, from 2016 to 2026, Belgium gained 635,763 people (a 5.61% growth), while Thailand's population increased by 706,140 people (a 1% growth).

Belgium was ranked 77th most populous country in 2006 and is 83rd in 2026. Thailand was ranked 19th in 2006 and ranked 21st now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Belgium's population will grow by 0.86% to 12,070,180 people with a rank change from 83rd to 92nd. The population of Thailand will decrease by 7% to 66,552,915 people and rank change from 21st to 31st.

Belgium is projected to reach its peak in 2045 at 12.1M people, while Thailand's population already peaked in 2022 at 71.7M people and is projected to decrease to 45.7M people by 2100.

Population growth rate by year

Belgium
Factual

Projection
Thailand
Factual

Projection
1x
Year Growth rate
Belgium Thailand
2100 -0.16% -0.75%
2099 -0.16% -0.75%
2098 -0.14% -0.76%
2097 -0.14% -0.77%
2096 -0.14% -0.77%
2095 -0.15% -0.77%
2094 -0.14% -0.77%
2093 -0.14% -0.78%
2092 -0.13% -0.77%
2091 -0.13% -0.78%
2090 -0.13% -0.78%
2089 -0.13% -0.77%
2088 -0.14% -0.77%
2087 -0.13% -0.77%
2086 -0.12% -0.77%
2085 -0.12% -0.78%
2084 -0.12% -0.77%
2083 -0.13% -0.77%
2082 -0.11% -0.76%
2081 -0.12% -0.77%
2080 -0.11% -0.77%
2079 -0.12% -0.77%
2078 -0.11% -0.76%
2077 -0.1% -0.76%
2076 -0.1% -0.76%
2075 -0.11% -0.77%
2074 -0.11% -0.77%
2073 -0.11% -0.77%
2072 -0.12% -0.76%
2071 -0.14% -0.77%
2070 -0.14% -0.77%
2069 -0.15% -0.77%
2068 -0.15% -0.76%
2067 -0.16% -0.76%
2066 -0.17% -0.77%
2065 -0.18% -0.76%
2064 -0.19% -0.76%
2063 -0.19% -0.76%
2062 -0.2% -0.75%
2061 -0.18% -0.75%
2060 -0.18% -0.74%
2059 -0.17% -0.73%
2058 -0.19% -0.72%
2057 -0.18% -0.71%
2056 -0.17% -0.69%
2055 -0.16% -0.68%
2054 -0.15% -0.65%
2053 -0.14% -0.64%
2052 -0.11% -0.61%
2051 -0.09% -0.59%
2050 -0.08% -0.57%
2049 -0.06% -0.53%
2048 -0.04% -0.51%
2047 -0.03% -0.49%
2046 -0.01% -0.46%
2045 0.005% -0.43%
2044 0.01% -0.41%
2043 0.02% -0.39%
2042 0.03% -0.37%
2041 0.03% -0.34%
2040 0.04% -0.32%
2039 0.05% -0.3%
2038 0.06% -0.28%
2037 0.05% -0.25%
2036 0.05% -0.24%
2035 0.06% -0.21%
2034 0.07% -0.2%
2033 0.07% -0.18%
2032 0.07% -0.16%
2031 0.08% -0.15%
2030 0.1% -0.13%
2029 0.11% -0.12%
2028 0.11% -0.11%
2027 0.12% -0.09%
2026 0.15% -0.08%
2025 0.7% -0.07%
2024 0.67% -0.05%
2023 0.85% -0.05%
2022 0.81% 0.01%
2021 0.41% 0.12%
2020 0.43% 0.17%
2019 0.54% 0.2%
2018 0.46% 0.3%
2017 0.39% 0.42%
2016 0.51% 0.45%
2015 0.58% 0.46%
2014 0.44% 0.53%
2013 0.47% 0.59%
2012 0.62% 0.62%
2011 1.31% 0.62%
2010 0.92% 0.67%
2009 0.81% 0.74%
2008 0.79% 0.77%
2007 0.74% 0.8%
2006 0.66% 0.83%
2005 0.55% 0.86%
2004 0.43% 0.9%
2003 0.42% 0.94%
2002 0.45% 0.97%
2001 0.34% 1.02%
2000 0.24% 1.14%
1999 0.23% 1.26%
1998 0.21% 1.31%
1997 0.24% 1.34%
1996 0.2% 1.39%
1995 0.21% 1.44%
1994 0.31% 1.49%
1993 0.39% 1.56%
1992 0.41% 1.6%
1991 0.37% 1.64%
1990 0.3% 1.65%
1989 0.36% 1.66%
1988 0.32% 1.72%
1987 0.09% 1.75%
1986 0.04% 1.8%
1985 0.03% 1.86%
1984 -0.002% 1.92%
1983 -0.008% 1.96%
1982 -0.03% 1.97%
1981 -0.003% 2.03%
1980 0.11% 2.08%
1979 0.09% 2.12%
1978 0.09% 2.21%
1977 0.12% 2.26%
1976 0.18% 2.34%
1975 0.29% 2.47%
1974 0.32% 2.58%
1973 0.32% 2.67%
1972 0.39% 2.7%
1971 0.18% 2.73%
1970 0.1% 2.8%
1969 0.28% 2.86%
1968 0.39% 2.92%
1967 0.56% 2.97%
1966 0.68% 3.01%
1965 0.91% 3.03%
1964 0.95% 3.03%
1963 0.75% 3.02%
1962 0.4% 3%
1961 0.33% 2.97%

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/belgium/thailand | CC BY

In 2025, the population of Belgium grew by 0.7%, while Thailand's population declined by 0.07%.

Live population counters

Belgium Thailand
Current population
11967185
71565981
Population rank 83/197 21/197
Percent of world population 0.14% 0.86%
One net population change
6.34 minutes
10.9 minutes
One birth every
4.82 minutes
54.2 seconds
One death every
4.67 minutes
48.7 seconds
Daily growth/decline +228 -132
Annual growth/decline +83,171 -48,148
Annual growth/decline rate +0.7% -0.07%
Population growth rate rank 116/197 164/197
One migration net change every
16.5 minutes
19.2 minutes
Annual migration change +31,989 +27,509
Net migration rank 28/196 30/196
Foreign-born residents 2,349,032 3,179,399
Foreign-born residents rank 30/195 21/195
Foreign-born share of population 20% 4.4%
Foreign-born share rank 30/195 100/195

Natural population change vs migration

Belgium
Natural

Migration
Thailand
Natural

Migration
1x
Year Population change
Belgium Thailand
Natural Migration Natural Migration
2025 - 31,989 - 27,509
2024 -3,557 36,243 -65,720 23,321
2023 0 41,679 -46,105 19,648
2022 -2,336 118,615 -61,046 21,683
2021 5,793 24,017 57,382 -2,093
2020 -12,692 43,777 84,107 32,277
2019 8,042 58,469 116,867 5,221
2018 7,999 50,604 159,383 10,984
2017 10,238 37,981 194,695 66,805
2016 14,731 28,090 226,255 112,978
2015 11,274 63,536 266,362 32,500
2014 21,297 37,472 294,628 55,358
2013 16,739 28,066 325,059 67,452
2012 18,882 45,001 351,485 74,033
2011 25,388 52,464 365,670 66,607
2010 23,970 105,232 370,466 52,791
2009 23,752 97,175 382,636 110,883
2008 22,491 66,470 401,730 107,333
2007 23,376 59,911 425,362 100,486
2006 21,096 53,574 441,211 102,362
2005 15,718 50,576 456,378 100,542
2004 16,673 35,143 466,542 107,199
2003 7,263 34,472 488,003 105,917
2002 7,233 39,404 504,299 105,215
2001 11,315 34,924 524,230 96,817
2000 12,302 13,952 543,884 121,640
1999 9,203 16,849 578,073 173,924
1998 9,183 12,517 617,318 183,471
1997 12,218 10,262 644,834 150,411
1996 12,188 15,684 661,397 152,397
1995 11,150 1,937 682,703 147,226
1994 12,139 17,636 712,589 132,271
1993 14,118 18,542 737,696 122,746
1992 20,090 25,941 754,999 143,318
1991 22,010 27,038 760,508 124,034
1990 19,935 8,299 760,808 152,916
1989 13,912 7,301 774,563 90,497
1988 14,853 3,929 765,252 128,469
1987 11,844 3,525 774,498 122,791
1986 5,917 2,964 783,430 111,820
1985 2,958 2,165 776,935 141,963
1984 4,927 1,697 779,856 139,345
1983 2,956 1,252 794,239 143,393
1982 7,885 1,100 817,951 101,885
1981 11,831 2,826 839,297 78,337
1980 10,845 11,482 845,575 88,478
1979 11,818 11,277 843,434 85,693
1978 7,872 10,828 847,799 82,011
1977 8,847 10,460 871,232 88,937
1976 1,964 10,360 894,072 40,656
1975 0 9,652 911,980 66,306
1974 7,818 8,924 923,151 72,801
1973 11,690 8,684 933,540 80,704
1972 18,451 8,384 940,420 73,082
1971 21,281 7,992 936,215 43,400
1970 23,173 19,393 937,116 49,221
1969 21,221 20,072 948,314 26,551
1968 20,199 19,809 953,806 13,718
1967 31,618 19,492 944,980 17,005
1966 36,206 18,985 929,469 12,016
1965 39,748 18,243 909,000 22,995
1964 51,580 17,687 885,137 17,249
1963 41,804 16,355 860,728 16,494
1962 42,414 14,829 828,741 16,605
1961 52,349 10,566 801,140 14,968
1960 40,275 9,893 774,190 6,886

Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08).

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

Over the last 10 years, 7.28% of the population change in Belgium is from natural causes (a gain of 39,492 people) and 92.7% is from migration (a gain of 503,011 people). In Thailand 74.2% is from natural causes (a gain of 932,180 people) and 25.8% is from migration (a gain of 323,324 people).

As of 2024, 2,349,032 residents or 20% of the population were not native-born in Belgium, compared to 3,179,399 people or 4.4% in Thailand.

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
Thailand
City Population
Bangkok 5.68M
Chiang Mai 1.2M
Nonthaburi 256K
Pak Kret 190K
Hat Yai 159K
Nakhon Ratchasima 134K
Chaophraya Surasak 133K
Surat Thani 131K
Udon Thani 130K
Klaeng 130K

Compare countries by 7 more topics

Population map with other countries

1x

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/belgium/thailand | CC BY

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-07-08)
  2. United Nations | World Population Prospects (1960–2100, retrieved 2026-07-08)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-07-08)
  4. Wikidata (2026, retrieved 2026-07-08)
  5. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08)

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