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

Updated on by Georank

The latest officially reported population of Tanzania was 70,545,865 in 2025 vs 69,487,000 people in the United Kingdom in 2025. In 2026, based on the adjusted UN estimation, the current Tanzania's population is 73,639,263 people compared to 70,071,289 in the United Kingdom.

Population statistics:

  • Tanzania's population is 1.05 times bigger than the United Kingdom's.
  • Tanzania is ranked the 20th most populous country in the world, while the United Kingdom is the 22nd.
  • The countries together account for 1.73% of the world: 0.89% for Tanzania vs 0.84% for the United Kingdom.
  • For the last 10 years, Tanzania has had an average growth rate of +3.11% per year vs +0.66% in the United Kingdom.
  • Since 2006, the population of Tanzania has increased from 40.3M people to 73.6M (82.8% growth), while the United Kingdom has grown from 60.8M to 70.1M (15.2% growth).

Tanzania vs United Kingdom: population by year and forecast

Tanzania
Factual

Projection
United Kingdom
Factual

Projection
1x
Year Population
Tanzania United Kingdom
2100 265,471,550 74,517,005
2099 263,137,702 74,647,273
2098 260,784,676 74,766,073
2097 258,387,890 74,879,923
2096 255,972,277 74,991,940
2095 253,543,248 75,102,041
2094 251,095,452 75,198,597
2093 248,605,184 75,296,704
2092 246,083,651 75,390,038
2091 243,533,968 75,480,137
2090 240,979,094 75,566,962
2089 238,393,867 75,649,353
2088 235,775,056 75,721,067
2087 233,145,231 75,791,990
2086 230,474,072 75,859,854
2085 227,778,580 75,918,647
2084 225,090,075 75,969,065
2083 222,400,079 76,018,614
2082 219,697,321 76,059,464
2081 216,974,796 76,086,593
2080 214,235,505 76,118,679
2079 211,466,096 76,147,352
2078 208,688,171 76,165,841
2077 205,898,494 76,183,437
2076 203,086,766 76,185,828
2075 200,278,383 76,198,349
2074 197,449,196 76,209,676
2073 194,624,081 76,218,781
2072 191,805,820 76,211,187
2071 188,974,004 76,200,495
2070 186,134,634 76,190,801
2069 183,293,747 76,184,140
2068 180,458,385 76,183,288
2067 177,622,538 76,175,881
2066 174,786,430 76,168,987
2065 171,897,059 76,168,193
2064 169,048,435 76,165,129
2063 166,202,091 76,165,534
2062 163,354,473 76,158,910
2061 160,521,858 76,156,587
2060 157,707,240 76,157,104
2059 154,905,240 76,157,593
2058 152,106,040 76,139,384
2057 149,311,257 76,119,478
2056 146,505,507 76,086,799
2055 143,722,840 76,047,952
2054 140,970,467 75,980,524
2053 138,249,490 75,907,047
2052 135,540,803 75,815,200
2051 132,838,721 75,709,173
2050 130,145,345 75,591,218
2049 127,483,126 75,460,140
2048 124,809,212 75,313,837
2047 122,146,647 75,153,802
2046 119,511,124 74,986,563
2045 116,903,642 74,808,886
2044 114,318,843 74,623,687
2043 111,765,580 74,424,133
2042 109,231,423 74,224,922
2041 106,738,458 74,020,934
2040 104,262,479 73,812,680
2039 101,804,600 73,600,788
2038 99,370,760 73,378,310
2037 96,974,485 73,155,497
2036 94,592,848 72,921,995
2035 92,248,476 72,671,687
2034 89,920,872 72,418,766
2033 87,646,627 72,145,065
2032 85,401,853 71,869,259
2031 83,172,579 71,581,519
2030 80,989,443 71,267,237
2029 78,830,947 70,948,992
2028 76,723,335 70,609,246
2027 74,639,948 70,248,858
2026 72,582,361 69,883,746
2025 70,545,865 69,487,000
2024 68,560,157 69,281,000
2023 66,617,606 68,526,000
2022 64,711,821 67,636,000
2021 62,830,412 66,978,000
2020 60,972,798 66,740,000
2019 59,174,891 66,628,000
2018 57,437,145 66,287,000
2017 55,652,890 65,964,000
2016 53,824,013 65,606,000
2015 52,020,962 65,087,000
2014 50,351,512 64,619,000
2013 48,824,128 64,138,000
2012 47,374,260 63,711,000
2011 46,029,367 63,258,810
2010 44,758,488 62,766,365
2009 43,633,982 62,276,270
2008 42,570,728 61,806,995
2007 41,435,512 61,322,463
2006 40,294,902 60,846,820
2005 39,182,076 60,401,206
2004 38,109,668 59,987,905
2003 37,089,555 59,647,577
2002 36,121,304 59,370,479
2001 35,198,299 59,119,673
2000 34,260,139 58,892,514
1999 33,300,330 58,682,466
1998 32,420,458 58,487,141
1997 31,578,089 58,316,954
1996 30,945,762 58,166,950
1995 30,383,497 58,019,030
1994 29,442,356 57,865,745
1993 28,332,692 57,718,614
1992 27,457,588 57,580,402
1991 26,780,436 57,424,897
1990 26,110,207 57,247,586
1989 25,438,759 57,076,711
1988 24,769,686 56,928,327
1987 24,030,378 56,802,050
1986 23,258,959 56,681,396
1985 22,501,693 56,550,268
1984 21,779,066 56,422,072
1983 21,079,874 56,332,848
1982 20,398,571 56,313,641
1981 19,784,703 56,333,829
1980 19,189,769 56,314,216
1979 18,592,038 56,246,951
1978 17,976,566 56,196,504
1977 17,352,929 56,193,492
1976 16,736,211 56,211,968
1975 16,138,361 56,225,800
1974 15,561,630 56,229,974
1973 15,010,101 56,194,527
1972 14,479,308 56,086,065
1971 13,971,451 55,896,223
1970 13,492,677 55,663,250
1969 13,036,700 55,441,750
1968 12,602,076 55,211,700
1967 12,200,109 54,943,600
1966 11,827,459 54,648,500
1965 11,470,728 54,348,050
1964 11,127,826 54,000,000
1963 10,799,528 53,650,000
1962 10,487,756 53,250,000
1961 10,187,886 52,800,000
1960 9,901,419 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/tanzania/united-kingdom | CC BY

From 2006 to 2016, the population of Tanzania increased by 13,529,111 people (a 33.6% growth), while the United Kingdom gained 4,759,180 people (a 7.82% growth).

For the next 10 years, from 2016 to 2026, Tanzania gained 19,815,250 people (a 36.8% growth), while the United Kingdom's population increased by 4,465,289 people (a 6.81% growth).

Tanzania was ranked 30th most populous country in 2006 and is 20th 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) Tanzania's population will grow by 76.7% to 130,145,345 people with a rank change from 20th to 15th. The population of the United Kingdom will increase by 7.88% to 75,591,218 people and rank change from 22nd to 26th.

Tanzania is projected to reach its peak in 2100 at 265M people compared to the peak of 76.2M people in 2073 for the United Kingdom.

Population growth rate by year

Tanzania
Factual

Projection
United Kingdom
Factual

Projection
1x
Year Growth rate
Tanzania United Kingdom
2100 0.89% -0.17%
2099 0.9% -0.16%
2098 0.93% -0.15%
2097 0.94% -0.15%
2096 0.96% -0.15%
2095 0.97% -0.13%
2094 1% -0.13%
2093 1.02% -0.12%
2092 1.05% -0.12%
2091 1.06% -0.11%
2090 1.08% -0.11%
2089 1.11% -0.09%
2088 1.13% -0.09%
2087 1.16% -0.09%
2086 1.18% -0.08%
2085 1.19% -0.07%
2084 1.21% -0.07%
2083 1.23% -0.05%
2082 1.25% -0.04%
2081 1.28% -0.04%
2080 1.31% -0.04%
2079 1.33% -0.02%
2078 1.35% -0.02%
2077 1.38% -0.003%
2076 1.4% -0.02%
2075 1.43% -0.01%
2074 1.45% -0.01%
2073 1.47% 0.01%
2072 1.5% 0.01%
2071 1.53% 0.01%
2070 1.55% 0.009%
2069 1.57% 0.001%
2068 1.6% 0.01%
2067 1.62% 0.009%
2066 1.68% 0.001%
2065 1.69% 0.004%
2064 1.71% -0%
2063 1.74% 0.009%
2062 1.76% 0.003%
2061 1.78% -0.001%
2060 1.81% -0.001%
2059 1.84% 0.02%
2058 1.87% 0.03%
2057 1.92% 0.04%
2056 1.94% 0.05%
2055 1.95% 0.09%
2054 1.97% 0.1%
2053 2% 0.12%
2052 2.03% 0.14%
2051 2.07% 0.16%
2050 2.09% 0.17%
2049 2.14% 0.19%
2048 2.18% 0.21%
2047 2.21% 0.22%
2046 2.23% 0.24%
2045 2.26% 0.25%
2044 2.28% 0.27%
2043 2.32% 0.27%
2042 2.34% 0.28%
2041 2.37% 0.28%
2040 2.41% 0.29%
2039 2.45% 0.3%
2038 2.47% 0.3%
2037 2.52% 0.32%
2036 2.54% 0.34%
2035 2.59% 0.35%
2034 2.59% 0.38%
2033 2.63% 0.38%
2032 2.68% 0.4%
2031 2.7% 0.44%
2030 2.74% 0.45%
2029 2.75% 0.48%
2028 2.79% 0.51%
2027 2.83% 0.52%
2026 2.89% 0.57%
2025 2.9% 0.3%
2024 2.92% 1.1%
2023 2.95% 1.32%
2022 2.99% 0.98%
2021 3.05% 0.36%
2020 3.04% 0.17%
2019 3.03% 0.51%
2018 3.21% 0.49%
2017 3.4% 0.55%
2016 3.47% 0.8%
2015 3.32% 0.72%
2014 3.13% 0.75%
2013 3.06% 0.67%
2012 2.92% 0.71%
2011 2.84% 0.78%
2010 2.58% 0.79%
2009 2.5% 0.76%
2008 2.74% 0.79%
2007 2.83% 0.78%
2006 2.84% 0.74%
2005 2.81% 0.69%
2004 2.75% 0.57%
2003 2.68% 0.47%
2002 2.62% 0.42%
2001 2.74% 0.39%
2000 2.88% 0.36%
1999 2.71% 0.33%
1998 2.67% 0.29%
1997 2.04% 0.26%
1996 1.85% 0.25%
1995 3.2% 0.26%
1994 3.92% 0.25%
1993 3.19% 0.24%
1992 2.53% 0.27%
1991 2.57% 0.31%
1990 2.64% 0.3%
1989 2.7% 0.26%
1988 3.08% 0.22%
1987 3.32% 0.21%
1986 3.37% 0.23%
1985 3.32% 0.23%
1984 3.32% 0.16%
1983 3.34% 0.03%
1982 3.1% -0.04%
1981 3.1% 0.03%
1980 3.21% 0.12%
1979 3.42% 0.09%
1978 3.59% 0.005%
1977 3.68% -0.03%
1976 3.7% -0.02%
1975 3.71% -0.007%
1974 3.67% 0.06%
1973 3.67% 0.19%
1972 3.63% 0.34%
1971 3.55% 0.42%
1970 3.5% 0.4%
1969 3.45% 0.42%
1968 3.29% 0.49%
1967 3.15% 0.54%
1966 3.11% 0.55%
1965 3.08% 0.64%
1964 3.04% 0.65%
1963 2.97% 0.75%
1962 2.94% 0.85%
1961 2.89% 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/tanzania/united-kingdom | CC BY

In 2025, the population of Tanzania grew by 2.9%, while the United Kingdom's population grew by 0.3%.

Live population counters

Tanzania United Kingdom
Current population
73639263
70071289
Population rank 20/197 22/197
Percent of world population 0.89% 0.84%
One net population change
15.9 seconds
2.56 minutes
One birth every
13.2 seconds
46 seconds
One death every
1.34 minutes
46.9 seconds
Daily growth/decline +5,440 +564
Annual growth/decline +1,985,708 +206,000
Annual growth/decline rate +2.9% +0.3%
Population growth rate rank 16/197 145/197
One migration net change every
41.4 minutes
1.35 minutes
Annual migration change -12,730 +389,911
Net migration rank 139/196 4/196
Foreign-born residents 462,371 11,845,479
Foreign-born residents rank 83/195 4/195
Foreign-born share of population 0.7% 17.1%
Foreign-born share rank 167/195 36/195

Natural population change vs migration

Tanzania
Natural

Migration
United Kingdom
Natural

Migration
1x
Year Population change
Tanzania United Kingdom
Natural Migration Natural Migration
2025 - -12,730 - 389,911
2024 1,993,730 -29,865 13,233 417,114
2023 1,960,623 -39,388 34,606 445,523
2022 1,927,960 -37,557 39,770 487,029
2021 1,880,137 -7,704 30,609 462,967
2020 1,861,377 -18,587 -4,272 144,221
2019 1,816,669 -63,602 108,338 232,727
2018 1,777,852 -55,444 119,317 259,744
2017 1,726,909 119,142 145,121 272,311
2016 1,659,502 152,194 177,136 324,649
2015 1,592,882 201,495 175,735 347,839
2014 1,565,630 -21,083 206,781 306,091
2013 1,509,008 1,241 198,827 237,272
2012 1,439,325 -49,875 248,473 172,088
2011 1,384,886 -84,546 259,361 228,773
2010 1,363,477 -122,020 251,066 274,811
2009 1,332,015 -324,478 230,422 249,639
2008 1,303,728 -184,816 216,325 263,390
2007 1,278,285 -126,793 196,232 309,385
2006 1,257,927 -128,231 176,455 288,923
2005 1,224,165 -128,251 144,963 308,279
2004 1,175,379 -126,490 131,974 276,077
2003 1,118,435 -127,101 89,471 211,846
2002 1,063,195 -118,047 65,308 203,577
2001 1,026,242 -125,375 65,032 175,133
2000 985,185 -9,701 70,671 153,917
1999 948,659 -4,489 64,551 152,653
1998 920,806 -105,184 87,730 125,541
1997 882,544 -13,400 99,138 59,723
1996 868,524 -473,007 98,884 54,964
1995 838,980 -109,971 87,028 61,385
1994 803,953 349,348 127,304 45,339
1993 778,044 288,004 103,893 27,403
1992 767,961 -83,825 149,709 17,846
1991 762,011 -91,851 143,562 27,601
1990 750,825 -80,529 154,569 57,132
1989 743,854 -71,268 119,861 49,586
1988 736,551 -71,012 136,628 13,952
1987 718,580 94,498 136,325 8,266
1986 705,677 24,101 90,690 41,836
1985 697,867 86,864 79,170 83,164
1984 687,435 -26,938 84,633 71,107
1983 679,720 58,161 61,966 27,063
1982 662,627 -37,883 56,314 -61,152
1981 645,496 -42,485 73,234 -83,876
1980 629,444 -42,588 95,734 -25,187
1979 613,388 -4,792 61,872 11,255
1978 595,024 27,307 16,859 3,783
1977 574,938 49,997 0 -21,636
1976 553,617 54,875 -5,621 -19,135
1975 533,906 53,290 33,735 -40,241
1974 515,152 51,127 67,476 -65,710
1973 488,429 48,363 112,389 -33,840
1972 467,305 57,489 162,650 -1,406
1971 449,014 41,900 257,123 1,175
1970 427,988 38,635 244,918 -15,254
1969 408,322 37,006 260,577 -60,655
1968 389,467 34,455 292,622 -38,852
1967 374,763 5,265 346,145 -39,659
1966 360,229 5,049 333,356 -27,935
1965 343,456 4,742 364,132 -24,955
1964 328,527 9,090 405,000 -23,885
1963 314,644 4,333 337,995 8,271
1962 300,663 3,916 340,800 76,443
1961 286,839 8,338 311,519 52,295
1960 275,814 1,946 314,400 19,953

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

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

Over the last 10 years, 98.8% of the population change in Tanzania is from natural causes (a gain of 18,197,641 people) and 1.2% is from migration (a gain of 220,684 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, 462,371 residents or 0.7% of the population were not native-born in Tanzania, compared to 11,845,479 people or 17.1% in the United Kingdom.

Biggest cities by population

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