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

Updated on by Georank

The latest officially reported population of Bulgaria was 6,433,302 in 2025 vs 70,545,865 people in Tanzania in 2025. In 2026, based on the adjusted UN estimation, the current Bulgaria's population is 6,390,149 people compared to 73,639,263 in Tanzania.

Population statistics:

  • Tanzania's population is 11.5 times bigger than Bulgaria's.
  • Bulgaria is ranked the 112th most populous country in the world, while Tanzania is the 20th.
  • The countries together account for 0.96% of the world: 0.08% for Bulgaria vs 0.89% for Tanzania.
  • For the last 10 years, Bulgaria has had an average growth rate of -0.86% per year vs +3.11% in Tanzania.
  • Since 2006, the population of Bulgaria has decreased from 7.6M people to 6.39M (15.9% decline), while Tanzania has grown from 40.3M to 73.6M (82.8% growth).

Bulgaria vs Tanzania: population by year and forecast

Bulgaria
Factual

Projection
Tanzania
Factual

Projection
1x
Year Population
Bulgaria Tanzania
2100 3,384,288 265,471,550
2099 3,408,821 263,137,702
2098 3,433,149 260,784,676
2097 3,457,549 258,387,890
2096 3,482,057 255,972,277
2095 3,506,060 253,543,248
2094 3,530,278 251,095,452
2093 3,554,432 248,605,184
2092 3,578,667 246,083,651
2091 3,602,907 243,533,968
2090 3,627,300 240,979,094
2089 3,652,188 238,393,867
2088 3,677,416 235,775,056
2087 3,703,460 233,145,231
2086 3,730,284 230,474,072
2085 3,757,953 227,778,580
2084 3,786,496 225,090,075
2083 3,815,548 222,400,079
2082 3,845,662 219,697,321
2081 3,876,344 216,974,796
2080 3,908,874 214,235,505
2079 3,942,344 211,466,096
2078 3,976,345 208,688,171
2077 4,011,440 205,898,494
2076 4,047,182 203,086,766
2075 4,083,977 200,278,383
2074 4,122,447 197,449,196
2073 4,161,511 194,624,081
2072 4,201,158 191,805,820
2071 4,241,639 188,974,004
2070 4,283,145 186,134,634
2069 4,325,083 183,293,747
2068 4,367,606 180,458,385
2067 4,411,116 177,622,538
2066 4,455,358 174,786,430
2065 4,500,141 171,897,059
2064 4,545,243 169,048,435
2063 4,590,439 166,202,091
2062 4,635,634 163,354,473
2061 4,681,315 160,521,858
2060 4,727,089 157,707,240
2059 4,772,667 154,905,240
2058 4,817,532 152,106,040
2057 4,862,597 149,311,257
2056 4,907,646 146,505,507
2055 4,953,105 143,722,840
2054 4,998,650 140,970,467
2053 5,044,397 138,249,490
2052 5,089,817 135,540,803
2051 5,135,505 132,838,721
2050 5,181,635 130,145,345
2049 5,228,058 127,483,126
2048 5,274,692 124,809,212
2047 5,322,212 122,146,647
2046 5,369,645 119,511,124
2045 5,417,381 116,903,642
2044 5,465,818 114,318,843
2043 5,514,902 111,765,580
2042 5,564,573 109,231,423
2041 5,615,489 106,738,458
2040 5,667,076 104,262,479
2039 5,719,506 101,804,600
2038 5,771,452 99,370,760
2037 5,824,628 96,974,485
2036 5,877,980 94,592,848
2035 5,930,517 92,248,476
2034 5,983,205 89,920,872
2033 6,036,049 87,646,627
2032 6,088,107 85,401,853
2031 6,140,619 83,172,579
2030 6,193,318 80,989,443
2029 6,244,785 78,830,947
2028 6,294,981 76,723,335
2027 6,343,732 74,639,948
2026 6,390,149 72,582,361
2025 6,433,302 70,545,865
2024 6,441,421 68,560,157
2023 6,446,596 66,617,606
2022 6,465,097 64,711,821
2021 6,507,301 62,830,412
2020 6,550,696 60,972,798
2019 6,616,726 59,174,891
2018 6,710,798 57,437,145
2017 6,803,468 55,652,890
2016 6,894,139 53,824,013
2015 6,984,225 52,020,962
2014 7,073,572 50,351,512
2013 7,160,005 48,824,128
2012 7,305,888 47,374,260
2011 7,348,328 46,029,367
2010 7,395,599 44,758,488
2009 7,444,443 43,633,982
2008 7,492,561 42,570,728
2007 7,545,338 41,435,512
2006 7,601,022 40,294,902
2005 7,658,972 39,182,076
2004 7,716,860 38,109,668
2003 7,775,327 37,089,555
2002 7,837,161 36,121,304
2001 8,009,142 35,198,299
2000 8,170,172 34,260,139
1999 8,210,624 33,300,330
1998 8,256,786 32,420,458
1997 8,312,068 31,578,089
1996 8,362,826 30,945,762
1995 8,406,067 30,383,497
1994 8,443,591 29,442,356
1993 8,472,313 28,332,692
1992 8,540,164 27,457,588
1991 8,632,367 26,780,436
1990 8,718,289 26,110,207
1989 8,876,972 25,438,759
1988 8,981,446 24,769,686
1987 8,971,359 24,030,378
1986 8,958,171 23,258,959
1985 8,960,547 22,501,693
1984 8,960,679 21,779,066
1983 8,939,738 21,079,874
1982 8,917,457 20,398,571
1981 8,891,117 19,784,703
1980 8,861,535 19,189,769
1979 8,825,940 18,592,038
1978 8,814,032 17,976,566
1977 8,804,183 17,352,929
1976 8,758,599 16,736,211
1975 8,720,742 16,138,361
1974 8,678,745 15,561,630
1973 8,620,967 15,010,101
1972 8,576,200 14,479,308
1971 8,536,395 13,971,451
1970 8,489,574 13,492,677
1969 8,434,172 13,036,700
1968 8,369,603 12,602,076
1967 8,310,226 12,200,109
1966 8,258,057 11,827,459
1965 8,204,168 11,470,728
1964 8,144,340 11,127,826
1963 8,078,145 10,799,528
1962 8,012,946 10,487,756
1961 7,943,118 10,187,886
1960 7,867,374 9,901,419

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/tanzania | CC BY

From 2006 to 2016, the population of Bulgaria decreased by 706,883 people (a 9.3% decline), while Tanzania gained 13,529,111 people (a 33.6% growth).

For the next 10 years, from 2016 to 2026, Bulgaria lost 503,990 people (a 7.31% decline), while Tanzania's population increased by 19,815,250 people (a 36.8% growth).

Bulgaria was ranked 95th most populous country in 2006 and is 112th in 2026. Tanzania was ranked 30th in 2006 and ranked 20th 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 Tanzania will increase by 76.7% to 130,145,345 people and rank change from 20th to 15th.

Tanzania is projected to reach its peak in 2100 at 265M people, while Bulgaria's population already peaked in 1988 at 8.98M people and is projected to decrease to 3.38M people by 2100.

Population growth rate by year

Bulgaria
Factual

Projection
Tanzania
Factual

Projection
1x
Year Growth rate
Bulgaria Tanzania
2100 -0.72% 0.89%
2099 -0.71% 0.9%
2098 -0.71% 0.93%
2097 -0.7% 0.94%
2096 -0.68% 0.96%
2095 -0.69% 0.97%
2094 -0.68% 1%
2093 -0.68% 1.02%
2092 -0.67% 1.05%
2091 -0.67% 1.06%
2090 -0.68% 1.08%
2089 -0.69% 1.11%
2088 -0.7% 1.13%
2087 -0.72% 1.16%
2086 -0.74% 1.18%
2085 -0.75% 1.19%
2084 -0.76% 1.21%
2083 -0.78% 1.23%
2082 -0.79% 1.25%
2081 -0.83% 1.28%
2080 -0.85% 1.31%
2079 -0.86% 1.33%
2078 -0.87% 1.35%
2077 -0.88% 1.38%
2076 -0.9% 1.4%
2075 -0.93% 1.43%
2074 -0.94% 1.45%
2073 -0.94% 1.47%
2072 -0.95% 1.5%
2071 -0.97% 1.53%
2070 -0.97% 1.55%
2069 -0.97% 1.57%
2068 -0.99% 1.6%
2067 -0.99% 1.62%
2066 -1% 1.68%
2065 -0.99% 1.69%
2064 -0.98% 1.71%
2063 -0.97% 1.74%
2062 -0.98% 1.76%
2061 -0.97% 1.78%
2060 -0.95% 1.81%
2059 -0.93% 1.84%
2058 -0.93% 1.87%
2057 -0.92% 1.92%
2056 -0.92% 1.94%
2055 -0.91% 1.95%
2054 -0.91% 1.97%
2053 -0.89% 2%
2052 -0.89% 2.03%
2051 -0.89% 2.07%
2050 -0.89% 2.09%
2049 -0.88% 2.14%
2048 -0.89% 2.18%
2047 -0.88% 2.21%
2046 -0.88% 2.23%
2045 -0.89% 2.26%
2044 -0.89% 2.28%
2043 -0.89% 2.32%
2042 -0.91% 2.34%
2041 -0.91% 2.37%
2040 -0.92% 2.41%
2039 -0.9% 2.45%
2038 -0.91% 2.47%
2037 -0.91% 2.52%
2036 -0.89% 2.54%
2035 -0.88% 2.59%
2034 -0.88% 2.59%
2033 -0.86% 2.63%
2032 -0.86% 2.68%
2031 -0.85% 2.7%
2030 -0.82% 2.74%
2029 -0.8% 2.75%
2028 -0.77% 2.79%
2027 -0.73% 2.83%
2026 -0.67% 2.89%
2025 -0.13% 2.9%
2024 -0.08% 2.92%
2023 -0.29% 2.95%
2022 -0.65% 2.99%
2021 -0.66% 3.05%
2020 -1% 3.04%
2019 -1.4% 3.03%
2018 -1.36% 3.21%
2017 -1.32% 3.4%
2016 -1.29% 3.47%
2015 -1.26% 3.32%
2014 -1.21% 3.13%
2013 -2% 3.06%
2012 -0.58% 2.92%
2011 -0.64% 2.84%
2010 -0.66% 2.58%
2009 -0.64% 2.5%
2008 -0.7% 2.74%
2007 -0.73% 2.83%
2006 -0.76% 2.84%
2005 -0.75% 2.81%
2004 -0.75% 2.75%
2003 -0.79% 2.68%
2002 -2.15% 2.62%
2001 -1.97% 2.74%
2000 -0.49% 2.88%
1999 -0.56% 2.71%
1998 -0.67% 2.67%
1997 -0.61% 2.04%
1996 -0.51% 1.85%
1995 -0.44% 3.2%
1994 -0.34% 3.92%
1993 -0.79% 3.19%
1992 -1.07% 2.53%
1991 -0.99% 2.57%
1990 -1.79% 2.64%
1989 -1.16% 2.7%
1988 0.11% 3.08%
1987 0.15% 3.32%
1986 -0.03% 3.37%
1985 -0.001% 3.32%
1984 0.23% 3.32%
1983 0.25% 3.34%
1982 0.3% 3.1%
1981 0.33% 3.1%
1980 0.4% 3.21%
1979 0.14% 3.42%
1978 0.11% 3.59%
1977 0.52% 3.68%
1976 0.43% 3.7%
1975 0.48% 3.71%
1974 0.67% 3.67%
1973 0.52% 3.67%
1972 0.47% 3.63%
1971 0.55% 3.55%
1970 0.66% 3.5%
1969 0.77% 3.45%
1968 0.71% 3.29%
1967 0.63% 3.15%
1966 0.66% 3.11%
1965 0.73% 3.08%
1964 0.82% 3.04%
1963 0.81% 2.97%
1962 0.88% 2.94%
1961 0.96% 2.89%

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/tanzania | CC BY

In 2025, the population of Bulgaria declined by 0.13%, while Tanzania's population grew by 2.9%.

Live population counters

Bulgaria Tanzania
Current population
6390149
73639263
Population rank 112/197 20/197
Percent of world population 0.08% 0.89%
One net population change
1.08 hours
15.9 seconds
One birth every
9.83 minutes
13.2 seconds
One death every
5.23 minutes
1.34 minutes
Daily growth/decline -22 +5,440
Annual growth/decline -8,119 +1,985,708
Annual growth/decline rate -0.13% +2.9%
Population growth rate rank 168/197 16/197
One migration net change every
2.97 hours
41.4 minutes
Annual migration change -2,961 -12,730
Net migration rank 106/196 139/196
Foreign-born residents 299,100 462,371
Foreign-born residents rank 98/195 83/195
Foreign-born share of population 4.4% 0.7%
Foreign-born share rank 99/195 167/195

Natural population change vs migration

Bulgaria
Natural

Migration
Tanzania
Natural

Migration
1x
Year Population change
Bulgaria Tanzania
Natural Migration Natural Migration
2025 - -2,961 - -12,730
2024 -47,023 524 1,993,730 -29,865
2023 -43,837 5,173 1,960,623 -39,388
2022 -62,065 26,498 1,927,960 -37,557
2021 -90,452 11,756 1,880,137 -7,704
2020 -65,507 30,167 1,861,377 -18,587
2019 -46,317 -2,156 1,816,669 -63,602
2018 -46,304 -3,873 1,777,852 -55,444
2017 -45,583 -6,109 1,726,909 119,142
2016 -42,744 -9,482 1,659,502 152,194
2015 -44,699 -4,227 1,592,882 201,495
2014 -41,027 -2,180 1,565,630 -21,083
2013 -37,948 -1,324 1,509,008 1,241
2012 -40,183 -26,334 1,439,325 -49,875
2011 -37,477 -23,360 1,384,886 -84,546
2010 -34,759 -21,668 1,363,477 -122,020
2009 -26,800 -19,060 1,332,015 -324,478
2008 -32,967 -17,595 1,303,728 -184,816
2007 -37,727 -16,366 1,278,285 -126,793
2006 -39,526 -15,184 1,257,927 -128,231
2005 -42,124 -14,435 1,224,165 -128,251
2004 -40,128 -13,604 1,175,379 -126,490
2003 -44,319 -13,183 1,118,435 -127,101
2002 -46,240 -12,735 1,063,195 -118,047
2001 -44,050 -30,726 1,026,242 -125,375
2000 -41,668 -26,211 985,185 -9,701
1999 -39,411 -23,846 948,659 -4,489
1998 -52,844 -23,262 920,806 -105,184
1997 -58,185 -22,963 882,544 -13,400
1996 -45,159 -21,520 868,524 -473,007
1995 -42,030 -22,020 838,980 -109,971
1994 -32,086 -20,984 803,953 349,348
1993 -24,569 -19,973 778,044 288,004
1992 -18,789 -120,552 767,961 -83,825
1991 -14,675 -119,356 762,011 -91,851
1990 -3,487 -116,817 750,825 -80,529
1989 5,326 -114,705 743,854 -71,268
1988 9,879 215 736,551 -71,012
1987 8,971 357 718,580 94,498
1986 16,125 1,104 705,677 24,101
1985 11,649 -19,230 697,867 86,864
1984 20,610 -1,032 687,435 -26,938
1983 21,455 -1,872 679,720 58,161
1982 24,077 -1,860 662,627 -37,883
1981 29,341 -1,830 645,496 -42,485
1980 30,129 -2,045 629,444 -42,588
1979 40,599 -872 613,388 -4,792
1978 44,070 -62,769 595,024 27,307
1977 47,543 -11,955 574,938 49,997
1976 56,055 -2,522 553,617 54,875
1975 54,941 -38,071 533,906 53,290
1974 64,223 -1,402 515,152 51,127
1973 57,760 -5,409 488,429 48,363
1972 47,169 -11,296 467,305 57,489
1971 52,925 -7,654 449,014 41,900
1970 61,125 -11,315 427,988 38,635
1969 63,256 -3,204 408,322 37,006
1968 69,468 -132 389,467 34,455
1967 49,861 -420 374,763 5,265
1966 54,504 -144 360,229 5,049
1965 58,249 -1,406 343,456 4,742
1964 66,783 505 328,527 9,090
1963 66,241 500 314,644 4,333
1962 64,104 499 300,663 3,916
1961 75,460 378 286,839 8,338
1960 76,314 -1,112 275,814 1,946

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

GeoRank.org/population/bulgaria/tanzania | 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 Tanzania 98.8% is from natural causes (a gain of 18,197,641 people) and 1.2% is from migration (a gain of 220,684 people).

As of 2024, 299,100 residents or 4.4% of the population were not native-born in Bulgaria, compared to 462,371 people or 0.7% in Tanzania.

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
Tanzania
City Population
Dar es Salaam 4.72M
Zanzibar 710K
Mwanza 706K
Mbeya 542K
Morogoro 471K
Arusha 416K
Tanga 221K
Dodoma 214K
Moshi 145K

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/tanzania | 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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