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Population in Thailand compared to the United Kingdom: Trends, Charts, Rankings

Updated on by Georank

The latest officially reported population of Thailand was 71,619,863 in 2025 vs 69,487,000 people in the United Kingdom in 2025. In 2026, based on the adjusted UN estimation, the current Thailand's population is 71,565,981 people compared to 70,071,289 in the United Kingdom.

Population statistics:

  • Thailand's population is 1.02 times bigger than the United Kingdom's.
  • Thailand is ranked the 21st most populous country in the world, while the United Kingdom is the 22nd.
  • The countries together account for 1.7% of the world: 0.86% for Thailand vs 0.84% for the United Kingdom.
  • For the last 10 years, Thailand has had an average growth rate of +0.18% per year vs +0.66% in the United Kingdom.
  • Since 2006, the population of Thailand has increased from 66.6M people to 71.6M (7.51% growth), while the United Kingdom has grown from 60.8M to 70.1M (15.2% growth).

Thailand vs United Kingdom: population by year and forecast

Thailand
Factual

Projection
United Kingdom
Factual

Projection
1x
Year Population
Thailand United Kingdom
2100 45,708,431 74,517,005
2099 46,053,146 74,647,273
2098 46,403,189 74,766,073
2097 46,757,918 74,879,923
2096 47,118,652 74,991,940
2095 47,484,043 75,102,041
2094 47,853,561 75,198,597
2093 48,226,682 75,296,704
2092 48,605,235 75,390,038
2091 48,984,504 75,480,137
2090 49,368,049 75,566,962
2089 49,756,629 75,649,353
2088 50,142,276 75,721,067
2087 50,532,164 75,791,990
2086 50,925,294 75,859,854
2085 51,321,960 75,918,647
2084 51,724,454 75,969,065
2083 52,127,592 76,018,614
2082 52,533,368 76,059,464
2081 52,938,345 76,086,593
2080 53,347,733 76,118,679
2079 53,762,492 76,147,352
2078 54,177,529 76,165,841
2077 54,595,112 76,183,437
2076 55,015,291 76,185,828
2075 55,438,108 76,198,349
2074 55,867,914 76,209,676
2073 56,300,358 76,218,781
2072 56,735,274 76,211,187
2071 57,172,515 76,200,495
2070 57,616,731 76,190,801
2069 58,061,962 76,184,140
2068 58,512,248 76,183,288
2067 58,962,990 76,175,881
2066 59,413,893 76,168,987
2065 59,873,261 76,168,193
2064 60,331,851 76,165,129
2063 60,792,306 76,165,534
2062 61,257,068 76,158,910
2061 61,720,030 76,156,587
2060 62,187,380 76,157,104
2059 62,651,158 76,157,593
2058 63,113,332 76,139,384
2057 63,572,746 76,119,478
2056 64,027,520 76,086,799
2055 64,473,146 76,047,952
2054 64,912,210 75,980,524
2053 65,338,122 75,907,047
2052 65,758,061 75,815,200
2051 66,162,612 75,709,173
2050 66,552,915 75,591,218
2049 66,931,487 75,460,140
2048 67,291,479 75,313,837
2047 67,636,461 75,153,802
2046 67,967,131 74,986,563
2045 68,281,902 74,808,886
2044 68,579,656 74,623,687
2043 68,864,788 74,424,133
2042 69,133,982 74,224,922
2041 69,390,832 74,020,934
2040 69,626,857 73,812,680
2039 69,848,522 73,600,788
2038 70,056,903 73,378,310
2037 70,250,371 73,155,497
2036 70,429,677 72,921,995
2035 70,599,021 72,671,687
2034 70,751,094 72,418,766
2033 70,891,510 72,145,065
2032 71,019,665 71,869,259
2031 71,134,882 71,581,519
2030 71,241,584 71,267,237
2029 71,337,147 70,948,992
2028 71,423,119 70,609,246
2027 71,499,411 70,248,858
2026 71,565,981 69,883,746
2025 71,619,863 69,487,000
2024 71,668,011 69,281,000
2023 71,702,435 68,526,000
2022 71,735,329 67,636,000
2021 71,727,332 66,978,000
2020 71,641,484 66,740,000
2019 71,522,271 66,628,000
2018 71,376,079 66,287,000
2017 71,160,187 65,964,000
2016 70,859,841 65,606,000
2015 70,540,795 65,087,000
2014 70,216,367 64,619,000
2013 69,845,114 64,138,000
2012 69,436,098 63,711,000
2011 69,007,208 63,258,810
2010 68,579,447 62,766,365
2009 68,121,080 62,276,270
2008 67,619,830 61,806,995
2007 67,102,394 61,322,463
2006 66,567,687 60,846,820
2005 66,017,420 60,401,206
2004 65,452,047 59,987,905
2003 64,868,166 59,647,577
2002 64,266,437 59,370,479
2001 63,651,141 59,119,673
2000 63,007,815 58,892,514
1999 62,299,043 58,682,466
1998 61,522,630 58,487,141
1997 60,724,584 58,316,954
1996 59,920,064 58,166,950
1995 59,098,232 58,019,030
1994 58,260,854 57,865,745
1993 57,408,198 57,718,614
1992 56,528,834 57,580,402
1991 55,637,434 57,424,897
1990 54,738,329 57,247,586
1989 53,848,956 57,076,711
1988 52,969,595 56,928,327
1987 52,074,105 56,802,050
1986 51,177,834 56,681,396
1985 50,270,753 56,550,268
1984 49,351,708 56,422,072
1983 48,423,309 56,332,848
1982 47,494,577 56,313,641
1981 46,575,855 56,333,829
1980 45,650,022 56,314,216
1979 44,718,434 56,246,951
1978 43,788,976 56,196,504
1977 42,843,974 56,193,492
1976 41,896,504 56,211,968
1975 40,940,005 56,225,800
1974 39,952,891 56,229,974
1973 38,947,787 56,194,527
1972 37,933,929 56,086,065
1971 36,937,387 55,896,223
1970 35,954,408 55,663,250
1969 34,973,782 55,441,750
1968 34,002,560 55,211,700
1967 33,037,801 54,943,600
1966 32,086,071 54,648,500
1965 31,149,337 54,348,050
1964 30,232,141 54,000,000
1963 29,342,322 53,650,000
1962 28,481,040 53,250,000
1961 27,650,334 52,800,000
1960 26,851,747 52,400,000

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/thailand/united-kingdom | CC BY

From 2006 to 2016, the population of Thailand increased by 4,292,154 people (a 6.45% growth), while the United Kingdom gained 4,759,180 people (a 7.82% growth).

For the next 10 years, from 2016 to 2026, Thailand gained 706,140 people (a 1% growth), while the United Kingdom's population increased by 4,465,289 people (a 6.81% growth).

Thailand was ranked 19th most populous country in 2006 and is 21st in 2026. The United Kingdom was ranked 21st in 2006 and ranked 22nd now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Thailand's population will shrink by 7% to 66,552,915 people with a rank change from 21st to 31st. The population of the United Kingdom will increase by 7.88% to 75,591,218 people and rank change from 22nd to 26th.

The United Kingdom is projected to reach its peak in 2073 at 76.2M 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

Thailand
Factual

Projection
United Kingdom
Factual

Projection
1x
Year Growth rate
Thailand United Kingdom
2100 -0.75% -0.17%
2099 -0.75% -0.16%
2098 -0.76% -0.15%
2097 -0.77% -0.15%
2096 -0.77% -0.15%
2095 -0.77% -0.13%
2094 -0.77% -0.13%
2093 -0.78% -0.12%
2092 -0.77% -0.12%
2091 -0.78% -0.11%
2090 -0.78% -0.11%
2089 -0.77% -0.09%
2088 -0.77% -0.09%
2087 -0.77% -0.09%
2086 -0.77% -0.08%
2085 -0.78% -0.07%
2084 -0.77% -0.07%
2083 -0.77% -0.05%
2082 -0.76% -0.04%
2081 -0.77% -0.04%
2080 -0.77% -0.04%
2079 -0.77% -0.02%
2078 -0.76% -0.02%
2077 -0.76% -0.003%
2076 -0.76% -0.02%
2075 -0.77% -0.01%
2074 -0.77% -0.01%
2073 -0.77% 0.01%
2072 -0.76% 0.01%
2071 -0.77% 0.01%
2070 -0.77% 0.009%
2069 -0.77% 0.001%
2068 -0.76% 0.01%
2067 -0.76% 0.009%
2066 -0.77% 0.001%
2065 -0.76% 0.004%
2064 -0.76% -0%
2063 -0.76% 0.009%
2062 -0.75% 0.003%
2061 -0.75% -0.001%
2060 -0.74% -0.001%
2059 -0.73% 0.02%
2058 -0.72% 0.03%
2057 -0.71% 0.04%
2056 -0.69% 0.05%
2055 -0.68% 0.09%
2054 -0.65% 0.1%
2053 -0.64% 0.12%
2052 -0.61% 0.14%
2051 -0.59% 0.16%
2050 -0.57% 0.17%
2049 -0.53% 0.19%
2048 -0.51% 0.21%
2047 -0.49% 0.22%
2046 -0.46% 0.24%
2045 -0.43% 0.25%
2044 -0.41% 0.27%
2043 -0.39% 0.27%
2042 -0.37% 0.28%
2041 -0.34% 0.28%
2040 -0.32% 0.29%
2039 -0.3% 0.3%
2038 -0.28% 0.3%
2037 -0.25% 0.32%
2036 -0.24% 0.34%
2035 -0.21% 0.35%
2034 -0.2% 0.38%
2033 -0.18% 0.38%
2032 -0.16% 0.4%
2031 -0.15% 0.44%
2030 -0.13% 0.45%
2029 -0.12% 0.48%
2028 -0.11% 0.51%
2027 -0.09% 0.52%
2026 -0.08% 0.57%
2025 -0.07% 0.3%
2024 -0.05% 1.1%
2023 -0.05% 1.32%
2022 0.01% 0.98%
2021 0.12% 0.36%
2020 0.17% 0.17%
2019 0.2% 0.51%
2018 0.3% 0.49%
2017 0.42% 0.55%
2016 0.45% 0.8%
2015 0.46% 0.72%
2014 0.53% 0.75%
2013 0.59% 0.67%
2012 0.62% 0.71%
2011 0.62% 0.78%
2010 0.67% 0.79%
2009 0.74% 0.76%
2008 0.77% 0.79%
2007 0.8% 0.78%
2006 0.83% 0.74%
2005 0.86% 0.69%
2004 0.9% 0.57%
2003 0.94% 0.47%
2002 0.97% 0.42%
2001 1.02% 0.39%
2000 1.14% 0.36%
1999 1.26% 0.33%
1998 1.31% 0.29%
1997 1.34% 0.26%
1996 1.39% 0.25%
1995 1.44% 0.26%
1994 1.49% 0.25%
1993 1.56% 0.24%
1992 1.6% 0.27%
1991 1.64% 0.31%
1990 1.65% 0.3%
1989 1.66% 0.26%
1988 1.72% 0.22%
1987 1.75% 0.21%
1986 1.8% 0.23%
1985 1.86% 0.23%
1984 1.92% 0.16%
1983 1.96% 0.03%
1982 1.97% -0.04%
1981 2.03% 0.03%
1980 2.08% 0.12%
1979 2.12% 0.09%
1978 2.21% 0.005%
1977 2.26% -0.03%
1976 2.34% -0.02%
1975 2.47% -0.007%
1974 2.58% 0.06%
1973 2.67% 0.19%
1972 2.7% 0.34%
1971 2.73% 0.42%
1970 2.8% 0.4%
1969 2.86% 0.42%
1968 2.92% 0.49%
1967 2.97% 0.54%
1966 3.01% 0.55%
1965 3.03% 0.64%
1964 3.03% 0.65%
1963 3.02% 0.75%
1962 3% 0.85%
1961 2.97% 0.76%

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/thailand/united-kingdom | CC BY

In 2025, the population of Thailand declined by 0.07%, while the United Kingdom's population grew by 0.3%.

Live population counters

Thailand United Kingdom
Current population
71565981
70071289
Population rank 21/197 22/197
Percent of world population 0.86% 0.84%
One net population change
10.9 minutes
2.56 minutes
One birth every
54.2 seconds
46 seconds
One death every
48.7 seconds
46.9 seconds
Daily growth/decline -132 +564
Annual growth/decline -48,148 +206,000
Annual growth/decline rate -0.07% +0.3%
Population growth rate rank 164/197 145/197
One migration net change every
19.2 minutes
1.35 minutes
Annual migration change +27,509 +389,911
Net migration rank 30/196 4/196
Foreign-born residents 3,179,399 11,845,479
Foreign-born residents rank 21/195 4/195
Foreign-born share of population 4.4% 17.1%
Foreign-born share rank 100/195 36/195

Natural population change vs migration

Thailand
Natural

Migration
United Kingdom
Natural

Migration
1x
Year Population change
Thailand United Kingdom
Natural Migration Natural Migration
2025 - 27,509 - 389,911
2024 -65,720 23,321 13,233 417,114
2023 -46,105 19,648 34,606 445,523
2022 -61,046 21,683 39,770 487,029
2021 57,382 -2,093 30,609 462,967
2020 84,107 32,277 -4,272 144,221
2019 116,867 5,221 108,338 232,727
2018 159,383 10,984 119,317 259,744
2017 194,695 66,805 145,121 272,311
2016 226,255 112,978 177,136 324,649
2015 266,362 32,500 175,735 347,839
2014 294,628 55,358 206,781 306,091
2013 325,059 67,452 198,827 237,272
2012 351,485 74,033 248,473 172,088
2011 365,670 66,607 259,361 228,773
2010 370,466 52,791 251,066 274,811
2009 382,636 110,883 230,422 249,639
2008 401,730 107,333 216,325 263,390
2007 425,362 100,486 196,232 309,385
2006 441,211 102,362 176,455 288,923
2005 456,378 100,542 144,963 308,279
2004 466,542 107,199 131,974 276,077
2003 488,003 105,917 89,471 211,846
2002 504,299 105,215 65,308 203,577
2001 524,230 96,817 65,032 175,133
2000 543,884 121,640 70,671 153,917
1999 578,073 173,924 64,551 152,653
1998 617,318 183,471 87,730 125,541
1997 644,834 150,411 99,138 59,723
1996 661,397 152,397 98,884 54,964
1995 682,703 147,226 87,028 61,385
1994 712,589 132,271 127,304 45,339
1993 737,696 122,746 103,893 27,403
1992 754,999 143,318 149,709 17,846
1991 760,508 124,034 143,562 27,601
1990 760,808 152,916 154,569 57,132
1989 774,563 90,497 119,861 49,586
1988 765,252 128,469 136,628 13,952
1987 774,498 122,791 136,325 8,266
1986 783,430 111,820 90,690 41,836
1985 776,935 141,963 79,170 83,164
1984 779,856 139,345 84,633 71,107
1983 794,239 143,393 61,966 27,063
1982 817,951 101,885 56,314 -61,152
1981 839,297 78,337 73,234 -83,876
1980 845,575 88,478 95,734 -25,187
1979 843,434 85,693 61,872 11,255
1978 847,799 82,011 16,859 3,783
1977 871,232 88,937 0 -21,636
1976 894,072 40,656 -5,621 -19,135
1975 911,980 66,306 33,735 -40,241
1974 923,151 72,801 67,476 -65,710
1973 933,540 80,704 112,389 -33,840
1972 940,420 73,082 162,650 -1,406
1971 936,215 43,400 257,123 1,175
1970 937,116 49,221 244,918 -15,254
1969 948,314 26,551 260,577 -60,655
1968 953,806 13,718 292,622 -38,852
1967 944,980 17,005 346,145 -39,659
1966 929,469 12,016 333,356 -27,935
1965 909,000 22,995 364,132 -24,955
1964 885,137 17,249 405,000 -23,885
1963 860,728 16,494 337,995 8,271
1962 828,741 16,605 340,800 76,443
1961 801,140 14,968 311,519 52,295
1960 774,190 6,886 314,400 19,953

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

GeoRank.org/population/thailand/united-kingdom | CC BY

Over the last 10 years, 74.2% of the population change in Thailand is from natural causes (a gain of 932,180 people) and 25.8% is from migration (a gain of 323,324 people). In the United Kingdom 19.8% is from natural causes (a gain of 839,593 people) and 80.2% is from migration (a gain of 3,394,124 people).

As of 2024, 3,179,399 residents or 4.4% of the population were not native-born in Thailand, compared to 11,845,479 people or 17.1% in the United Kingdom.

Biggest cities by population

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
United Kingdom
City Population
London 8.8M
Birmingham 1.14M
Glasgow 626K
Manchester 548K
Leeds 536K
Sheffield 518K
Liverpool 513K
Edinburgh 488K
Bristol 472K
Cardiff 384K

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/thailand/united-kingdom | 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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