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

Updated on by Georank

The latest officially reported population of Bulgaria was 6,433,302 in 2025 vs 71,619,863 people in Thailand in 2025. In 2026, based on the adjusted UN estimation, the current Bulgaria's population is 6,390,149 people compared to 71,565,981 in Thailand.

Population statistics:

  • Thailand's population is 11.2 times bigger than Bulgaria's.
  • Bulgaria is ranked the 112th most populous country in the world, while Thailand is the 21st.
  • The countries together account for 0.94% of the world: 0.08% for Bulgaria vs 0.86% for Thailand.
  • For the last 10 years, Bulgaria has had an average growth rate of -0.86% per year vs +0.18% in Thailand.
  • Since 2006, the population of Bulgaria has decreased from 7.6M people to 6.39M (15.9% decline), while Thailand has grown from 66.6M to 71.6M (7.51% growth).

Bulgaria vs Thailand: population by year and forecast

Bulgaria
Factual

Projection
Thailand
Factual

Projection
1x
Year Population
Bulgaria Thailand
2100 3,384,288 45,708,431
2099 3,408,821 46,053,146
2098 3,433,149 46,403,189
2097 3,457,549 46,757,918
2096 3,482,057 47,118,652
2095 3,506,060 47,484,043
2094 3,530,278 47,853,561
2093 3,554,432 48,226,682
2092 3,578,667 48,605,235
2091 3,602,907 48,984,504
2090 3,627,300 49,368,049
2089 3,652,188 49,756,629
2088 3,677,416 50,142,276
2087 3,703,460 50,532,164
2086 3,730,284 50,925,294
2085 3,757,953 51,321,960
2084 3,786,496 51,724,454
2083 3,815,548 52,127,592
2082 3,845,662 52,533,368
2081 3,876,344 52,938,345
2080 3,908,874 53,347,733
2079 3,942,344 53,762,492
2078 3,976,345 54,177,529
2077 4,011,440 54,595,112
2076 4,047,182 55,015,291
2075 4,083,977 55,438,108
2074 4,122,447 55,867,914
2073 4,161,511 56,300,358
2072 4,201,158 56,735,274
2071 4,241,639 57,172,515
2070 4,283,145 57,616,731
2069 4,325,083 58,061,962
2068 4,367,606 58,512,248
2067 4,411,116 58,962,990
2066 4,455,358 59,413,893
2065 4,500,141 59,873,261
2064 4,545,243 60,331,851
2063 4,590,439 60,792,306
2062 4,635,634 61,257,068
2061 4,681,315 61,720,030
2060 4,727,089 62,187,380
2059 4,772,667 62,651,158
2058 4,817,532 63,113,332
2057 4,862,597 63,572,746
2056 4,907,646 64,027,520
2055 4,953,105 64,473,146
2054 4,998,650 64,912,210
2053 5,044,397 65,338,122
2052 5,089,817 65,758,061
2051 5,135,505 66,162,612
2050 5,181,635 66,552,915
2049 5,228,058 66,931,487
2048 5,274,692 67,291,479
2047 5,322,212 67,636,461
2046 5,369,645 67,967,131
2045 5,417,381 68,281,902
2044 5,465,818 68,579,656
2043 5,514,902 68,864,788
2042 5,564,573 69,133,982
2041 5,615,489 69,390,832
2040 5,667,076 69,626,857
2039 5,719,506 69,848,522
2038 5,771,452 70,056,903
2037 5,824,628 70,250,371
2036 5,877,980 70,429,677
2035 5,930,517 70,599,021
2034 5,983,205 70,751,094
2033 6,036,049 70,891,510
2032 6,088,107 71,019,665
2031 6,140,619 71,134,882
2030 6,193,318 71,241,584
2029 6,244,785 71,337,147
2028 6,294,981 71,423,119
2027 6,343,732 71,499,411
2026 6,390,149 71,565,981
2025 6,433,302 71,619,863
2024 6,441,421 71,668,011
2023 6,446,596 71,702,435
2022 6,465,097 71,735,329
2021 6,507,301 71,727,332
2020 6,550,696 71,641,484
2019 6,616,726 71,522,271
2018 6,710,798 71,376,079
2017 6,803,468 71,160,187
2016 6,894,139 70,859,841
2015 6,984,225 70,540,795
2014 7,073,572 70,216,367
2013 7,160,005 69,845,114
2012 7,305,888 69,436,098
2011 7,348,328 69,007,208
2010 7,395,599 68,579,447
2009 7,444,443 68,121,080
2008 7,492,561 67,619,830
2007 7,545,338 67,102,394
2006 7,601,022 66,567,687
2005 7,658,972 66,017,420
2004 7,716,860 65,452,047
2003 7,775,327 64,868,166
2002 7,837,161 64,266,437
2001 8,009,142 63,651,141
2000 8,170,172 63,007,815
1999 8,210,624 62,299,043
1998 8,256,786 61,522,630
1997 8,312,068 60,724,584
1996 8,362,826 59,920,064
1995 8,406,067 59,098,232
1994 8,443,591 58,260,854
1993 8,472,313 57,408,198
1992 8,540,164 56,528,834
1991 8,632,367 55,637,434
1990 8,718,289 54,738,329
1989 8,876,972 53,848,956
1988 8,981,446 52,969,595
1987 8,971,359 52,074,105
1986 8,958,171 51,177,834
1985 8,960,547 50,270,753
1984 8,960,679 49,351,708
1983 8,939,738 48,423,309
1982 8,917,457 47,494,577
1981 8,891,117 46,575,855
1980 8,861,535 45,650,022
1979 8,825,940 44,718,434
1978 8,814,032 43,788,976
1977 8,804,183 42,843,974
1976 8,758,599 41,896,504
1975 8,720,742 40,940,005
1974 8,678,745 39,952,891
1973 8,620,967 38,947,787
1972 8,576,200 37,933,929
1971 8,536,395 36,937,387
1970 8,489,574 35,954,408
1969 8,434,172 34,973,782
1968 8,369,603 34,002,560
1967 8,310,226 33,037,801
1966 8,258,057 32,086,071
1965 8,204,168 31,149,337
1964 8,144,340 30,232,141
1963 8,078,145 29,342,322
1962 8,012,946 28,481,040
1961 7,943,118 27,650,334
1960 7,867,374 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/bulgaria/thailand | CC BY

From 2006 to 2016, the population of Bulgaria decreased by 706,883 people (a 9.3% decline), while Thailand gained 4,292,154 people (a 6.45% growth).

For the next 10 years, from 2016 to 2026, Bulgaria lost 503,990 people (a 7.31% decline), while Thailand's population increased by 706,140 people (a 1% growth).

Bulgaria was ranked 95th most populous country in 2006 and is 112th 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) Bulgaria's population will shrink by 18.9% to 5,181,635 people with a rank change from 112th to 128th. The population of Thailand will decrease by 7% to 66,552,915 people and rank change from 21st to 31st.

Both countries are in a period of decline and in 50 years are projected to lose 36.7% of the population in Bulgaria and 23.1% in Thailand.

Population growth rate by year

Bulgaria
Factual

Projection
Thailand
Factual

Projection
1x
Year Growth rate
Bulgaria Thailand
2100 -0.72% -0.75%
2099 -0.71% -0.75%
2098 -0.71% -0.76%
2097 -0.7% -0.77%
2096 -0.68% -0.77%
2095 -0.69% -0.77%
2094 -0.68% -0.77%
2093 -0.68% -0.78%
2092 -0.67% -0.77%
2091 -0.67% -0.78%
2090 -0.68% -0.78%
2089 -0.69% -0.77%
2088 -0.7% -0.77%
2087 -0.72% -0.77%
2086 -0.74% -0.77%
2085 -0.75% -0.78%
2084 -0.76% -0.77%
2083 -0.78% -0.77%
2082 -0.79% -0.76%
2081 -0.83% -0.77%
2080 -0.85% -0.77%
2079 -0.86% -0.77%
2078 -0.87% -0.76%
2077 -0.88% -0.76%
2076 -0.9% -0.76%
2075 -0.93% -0.77%
2074 -0.94% -0.77%
2073 -0.94% -0.77%
2072 -0.95% -0.76%
2071 -0.97% -0.77%
2070 -0.97% -0.77%
2069 -0.97% -0.77%
2068 -0.99% -0.76%
2067 -0.99% -0.76%
2066 -1% -0.77%
2065 -0.99% -0.76%
2064 -0.98% -0.76%
2063 -0.97% -0.76%
2062 -0.98% -0.75%
2061 -0.97% -0.75%
2060 -0.95% -0.74%
2059 -0.93% -0.73%
2058 -0.93% -0.72%
2057 -0.92% -0.71%
2056 -0.92% -0.69%
2055 -0.91% -0.68%
2054 -0.91% -0.65%
2053 -0.89% -0.64%
2052 -0.89% -0.61%
2051 -0.89% -0.59%
2050 -0.89% -0.57%
2049 -0.88% -0.53%
2048 -0.89% -0.51%
2047 -0.88% -0.49%
2046 -0.88% -0.46%
2045 -0.89% -0.43%
2044 -0.89% -0.41%
2043 -0.89% -0.39%
2042 -0.91% -0.37%
2041 -0.91% -0.34%
2040 -0.92% -0.32%
2039 -0.9% -0.3%
2038 -0.91% -0.28%
2037 -0.91% -0.25%
2036 -0.89% -0.24%
2035 -0.88% -0.21%
2034 -0.88% -0.2%
2033 -0.86% -0.18%
2032 -0.86% -0.16%
2031 -0.85% -0.15%
2030 -0.82% -0.13%
2029 -0.8% -0.12%
2028 -0.77% -0.11%
2027 -0.73% -0.09%
2026 -0.67% -0.08%
2025 -0.13% -0.07%
2024 -0.08% -0.05%
2023 -0.29% -0.05%
2022 -0.65% 0.01%
2021 -0.66% 0.12%
2020 -1% 0.17%
2019 -1.4% 0.2%
2018 -1.36% 0.3%
2017 -1.32% 0.42%
2016 -1.29% 0.45%
2015 -1.26% 0.46%
2014 -1.21% 0.53%
2013 -2% 0.59%
2012 -0.58% 0.62%
2011 -0.64% 0.62%
2010 -0.66% 0.67%
2009 -0.64% 0.74%
2008 -0.7% 0.77%
2007 -0.73% 0.8%
2006 -0.76% 0.83%
2005 -0.75% 0.86%
2004 -0.75% 0.9%
2003 -0.79% 0.94%
2002 -2.15% 0.97%
2001 -1.97% 1.02%
2000 -0.49% 1.14%
1999 -0.56% 1.26%
1998 -0.67% 1.31%
1997 -0.61% 1.34%
1996 -0.51% 1.39%
1995 -0.44% 1.44%
1994 -0.34% 1.49%
1993 -0.79% 1.56%
1992 -1.07% 1.6%
1991 -0.99% 1.64%
1990 -1.79% 1.65%
1989 -1.16% 1.66%
1988 0.11% 1.72%
1987 0.15% 1.75%
1986 -0.03% 1.8%
1985 -0.001% 1.86%
1984 0.23% 1.92%
1983 0.25% 1.96%
1982 0.3% 1.97%
1981 0.33% 2.03%
1980 0.4% 2.08%
1979 0.14% 2.12%
1978 0.11% 2.21%
1977 0.52% 2.26%
1976 0.43% 2.34%
1975 0.48% 2.47%
1974 0.67% 2.58%
1973 0.52% 2.67%
1972 0.47% 2.7%
1971 0.55% 2.73%
1970 0.66% 2.8%
1969 0.77% 2.86%
1968 0.71% 2.92%
1967 0.63% 2.97%
1966 0.66% 3.01%
1965 0.73% 3.03%
1964 0.82% 3.03%
1963 0.81% 3.02%
1962 0.88% 3%
1961 0.96% 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/bulgaria/thailand | CC BY

In 2025, the population of Bulgaria declined by 0.13%, while Thailand's population declined by 0.07%.

Live population counters

Bulgaria Thailand
Current population
6390149
71565981
Population rank 112/197 21/197
Percent of world population 0.08% 0.86%
One net population change
1.08 hours
10.9 minutes
One birth every
9.83 minutes
54.2 seconds
One death every
5.23 minutes
48.7 seconds
Daily growth/decline -22 -132
Annual growth/decline -8,119 -48,148
Annual growth/decline rate -0.13% -0.07%
Population growth rate rank 168/197 164/197
One migration net change every
2.97 hours
19.2 minutes
Annual migration change -2,961 +27,509
Net migration rank 106/196 30/196
Foreign-born residents 299,100 3,179,399
Foreign-born residents rank 98/195 21/195
Foreign-born share of population 4.4% 4.4%
Foreign-born share rank 99/195 100/195

Natural population change vs migration

Bulgaria
Natural

Migration
Thailand
Natural

Migration
1x
Year Population change
Bulgaria Thailand
Natural Migration Natural Migration
2025 - -2,961 - 27,509
2024 -47,023 524 -65,720 23,321
2023 -43,837 5,173 -46,105 19,648
2022 -62,065 26,498 -61,046 21,683
2021 -90,452 11,756 57,382 -2,093
2020 -65,507 30,167 84,107 32,277
2019 -46,317 -2,156 116,867 5,221
2018 -46,304 -3,873 159,383 10,984
2017 -45,583 -6,109 194,695 66,805
2016 -42,744 -9,482 226,255 112,978
2015 -44,699 -4,227 266,362 32,500
2014 -41,027 -2,180 294,628 55,358
2013 -37,948 -1,324 325,059 67,452
2012 -40,183 -26,334 351,485 74,033
2011 -37,477 -23,360 365,670 66,607
2010 -34,759 -21,668 370,466 52,791
2009 -26,800 -19,060 382,636 110,883
2008 -32,967 -17,595 401,730 107,333
2007 -37,727 -16,366 425,362 100,486
2006 -39,526 -15,184 441,211 102,362
2005 -42,124 -14,435 456,378 100,542
2004 -40,128 -13,604 466,542 107,199
2003 -44,319 -13,183 488,003 105,917
2002 -46,240 -12,735 504,299 105,215
2001 -44,050 -30,726 524,230 96,817
2000 -41,668 -26,211 543,884 121,640
1999 -39,411 -23,846 578,073 173,924
1998 -52,844 -23,262 617,318 183,471
1997 -58,185 -22,963 644,834 150,411
1996 -45,159 -21,520 661,397 152,397
1995 -42,030 -22,020 682,703 147,226
1994 -32,086 -20,984 712,589 132,271
1993 -24,569 -19,973 737,696 122,746
1992 -18,789 -120,552 754,999 143,318
1991 -14,675 -119,356 760,508 124,034
1990 -3,487 -116,817 760,808 152,916
1989 5,326 -114,705 774,563 90,497
1988 9,879 215 765,252 128,469
1987 8,971 357 774,498 122,791
1986 16,125 1,104 783,430 111,820
1985 11,649 -19,230 776,935 141,963
1984 20,610 -1,032 779,856 139,345
1983 21,455 -1,872 794,239 143,393
1982 24,077 -1,860 817,951 101,885
1981 29,341 -1,830 839,297 78,337
1980 30,129 -2,045 845,575 88,478
1979 40,599 -872 843,434 85,693
1978 44,070 -62,769 847,799 82,011
1977 47,543 -11,955 871,232 88,937
1976 56,055 -2,522 894,072 40,656
1975 54,941 -38,071 911,980 66,306
1974 64,223 -1,402 923,151 72,801
1973 57,760 -5,409 933,540 80,704
1972 47,169 -11,296 940,420 73,082
1971 52,925 -7,654 936,215 43,400
1970 61,125 -11,315 937,116 49,221
1969 63,256 -3,204 948,314 26,551
1968 69,468 -132 953,806 13,718
1967 49,861 -420 944,980 17,005
1966 54,504 -144 929,469 12,016
1965 58,249 -1,406 909,000 22,995
1964 66,783 505 885,137 17,249
1963 66,241 500 860,728 16,494
1962 64,104 499 828,741 16,605
1961 75,460 378 801,140 14,968
1960 76,314 -1,112 774,190 6,886

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

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

Over the last 10 years, 91.7% of the population change in Bulgaria is from natural causes (a loss of 534,531 people) and 8.28% is from migration (a gain of 48,271 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, 299,100 residents or 4.4% of the population were not native-born in Bulgaria, compared to 3,179,399 people or 4.4% in Thailand.

Biggest cities by population

Bulgaria
City Population
Sofia 1.21M
Plovdiv 334K
Varna 323K
Burgas 189K
Stara Zagora 121K
Ruse 120K
Pleven 88.1K
Sliven 77.8K
Dobrich 68.6K
Shumen 66.4K
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/bulgaria/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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