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

Updated on by Georank team

The latest officially reported population of Iran was 91,567,738 in 2024 vs 68,560,157 people in Tanzania in 2024. In 2026, based on the adjusted UN estimation, the current Iran's population is 93,468,444 people compared to 73,145,892 in Tanzania.

Population statistics:

  • Iran's population is 1.28 times bigger than Tanzania's.
  • Iran is ranked the 17th most populous country in the world, while Tanzania is the 20th.
  • The countries together account for 2.01% of the world: 1.13% for Iran vs 0.88% for Tanzania.
  • For the last 10 years, Iran has had an average growth rate of +1.19% per year vs +3.13% in Tanzania.
  • Since 2006, the population of Iran has increased from 73.4M people to 93.5M (27.4% growth), while Tanzania has grown from 40.3M to 73.1M (81.5% growth).

Iran vs Tanzania: population by year and forecast

Iran
Factual

Projection
Tanzania
Factual

Projection
1x
Year Population
Iran Tanzania
2100 80,713,760 265,496,854
2099 81,246,718 263,162,785
2098 81,770,953 260,809,535
2097 82,295,714 258,412,520
2096 82,818,575 255,996,677
2095 83,338,446 253,567,416
2094 83,854,648 251,119,386
2093 84,371,569 248,628,881
2092 84,888,626 246,107,108
2091 85,410,099 243,557,182
2090 85,934,675 241,002,065
2089 86,466,409 238,416,591
2088 87,004,165 235,797,530
2087 87,549,685 233,167,455
2086 88,105,571 230,496,041
2085 88,668,329 227,800,292
2084 89,239,709 225,111,530
2083 89,817,194 222,421,279
2082 90,402,538 219,718,263
2081 90,995,822 216,995,478
2080 91,595,122 214,255,926
2079 92,196,842 211,486,253
2078 92,801,160 208,708,063
2077 93,405,954 205,918,120
2076 94,007,669 203,106,125
2075 94,606,607 200,297,474
2074 95,197,577 197,468,017
2073 95,783,994 194,642,633
2072 96,355,853 191,824,103
2071 96,915,335 188,992,017
2070 97,460,813 186,152,377
2069 97,988,897 183,311,218
2068 98,496,927 180,475,586
2067 98,978,509 177,639,469
2066 99,439,391 174,803,090
2065 99,877,457 171,913,445
2064 100,288,977 169,064,549
2063 100,668,199 166,217,933
2062 101,017,348 163,370,044
2061 101,332,810 160,537,159
2060 101,612,261 157,722,273
2059 101,858,931 154,920,005
2058 102,061,144 152,120,539
2057 102,228,085 149,325,489
2056 102,358,266 146,519,472
2055 102,449,092 143,736,540
2054 102,498,594 140,983,905
2053 102,508,245 138,262,668
2052 102,480,373 135,553,723
2051 102,417,847 132,851,383
2050 102,318,917 130,157,751
2049 102,189,816 127,495,278
2048 102,024,233 124,821,109
2047 101,832,213 122,158,290
2046 101,613,554 119,522,516
2045 101,371,784 116,914,785
2044 101,104,998 114,329,740
2043 100,818,045 111,776,234
2042 100,512,032 109,241,835
2041 100,188,214 106,748,632
2040 99,849,875 104,272,418
2039 99,501,869 101,814,304
2038 99,137,385 99,380,232
2037 98,759,167 96,983,729
2036 98,366,612 94,601,865
2035 97,963,082 92,257,269
2034 97,546,148 89,929,444
2033 97,118,106 87,654,982
2032 96,671,440 85,409,993
2031 96,204,118 83,180,507
2030 95,718,604 80,997,163
2029 95,195,996 78,838,461
2028 94,623,034 76,730,649
2027 93,987,260 74,647,063
2026 93,276,075 72,589,279
2025 92,478,162 70,552,589
2024 91,567,738 68,560,157
2023 90,608,707 66,617,606
2022 89,524,246 64,711,821
2021 88,455,488 62,830,412
2020 87,723,443 60,972,798
2019 87,051,648 59,174,891
2018 86,117,998 57,437,145
2017 85,026,754 55,652,890
2016 83,812,228 53,824,013
2015 82,619,362 52,020,962
2014 81,502,045 50,351,512
2013 80,414,686 48,824,128
2012 79,370,580 47,374,260
2011 78,383,598 46,029,367
2010 77,420,842 44,758,488
2009 76,457,825 43,633,982
2008 75,514,204 42,570,728
2007 74,602,648 41,435,512
2006 73,392,747 40,294,902
2005 71,828,455 39,182,076
2004 70,256,316 38,109,668
2003 68,769,340 37,089,555
2002 68,011,317 36,121,304
2001 67,452,005 35,198,299
2000 66,418,659 34,260,139
1999 65,445,391 33,300,330
1998 64,519,859 32,420,458
1997 63,639,638 31,578,089
1996 62,881,300 30,945,762
1995 62,205,567 30,383,497
1994 61,520,598 29,442,356
1993 61,403,543 28,332,692
1992 61,184,983 27,457,588
1991 59,986,931 26,780,436
1990 58,380,092 26,110,207
1989 56,704,914 25,438,759
1988 55,072,694 24,769,686
1987 53,323,493 24,030,378
1986 51,446,045 23,258,959
1985 49,582,289 22,501,693
1984 47,793,998 21,779,066
1983 46,029,535 21,079,874
1982 44,272,141 20,398,571
1981 41,989,312 19,784,703
1980 39,842,324 19,189,769
1979 38,424,952 18,592,038
1978 37,126,535 17,976,566
1977 35,933,181 17,352,929
1976 34,837,271 16,736,211
1975 33,802,973 16,138,361
1974 32,796,463 15,561,630
1973 31,839,838 15,010,101
1972 30,921,179 14,479,308
1971 30,029,071 13,971,451
1970 29,145,100 13,492,677
1969 28,273,482 13,036,700
1968 27,437,391 12,602,076
1967 26,628,432 12,200,109
1966 25,829,270 11,827,459
1965 25,036,978 11,470,728
1964 24,262,859 11,127,826
1963 23,519,005 10,799,528
1962 22,807,907 10,487,756
1961 22,125,726 10,187,886
1960 21,470,434 9,901,419

Data sources: United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); World Bank | Health (1960–2024, retrieved 2026-04-06).

GeoRank.org/population/iran/tanzania | CC BY

From 2006 to 2016, the population of Iran increased by 10,419,481 people (a 14.2% growth), while Tanzania gained 13,529,111 people (a 33.6% growth).

For the next 10 years, from 2016 to 2026, Iran gained 9,656,216 people (a 11.5% growth), while Tanzania's population increased by 19,321,879 people (a 35.9% growth).

Iran was ranked 17th most populous country in 2006 and is still 17th 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) Iran's population will grow by 9.47% to 102,318,917 people with a rank change from 17th to 18th. The population of Tanzania will increase by 77.9% to 130,157,751 people and rank change from 20th to 15th.

Iran is projected to reach its peak in 2053 at 103M people compared to the peak of 265M people in 2100 for Tanzania.

Population growth rate by year

Iran
Factual

Projection
Tanzania
Factual

Projection
1x
Year Growth rate
Iran Tanzania
2100 -0.66% 0.89%
2099 -0.64% 0.9%
2098 -0.64% 0.93%
2097 -0.63% 0.94%
2096 -0.62% 0.96%
2095 -0.62% 0.97%
2094 -0.61% 1%
2093 -0.61% 1.02%
2092 -0.61% 1.05%
2091 -0.61% 1.06%
2090 -0.61% 1.08%
2089 -0.62% 1.11%
2088 -0.62% 1.13%
2087 -0.63% 1.16%
2086 -0.63% 1.18%
2085 -0.64% 1.19%
2084 -0.64% 1.21%
2083 -0.65% 1.23%
2082 -0.65% 1.25%
2081 -0.65% 1.28%
2080 -0.65% 1.31%
2079 -0.65% 1.33%
2078 -0.65% 1.35%
2077 -0.64% 1.38%
2076 -0.63% 1.4%
2075 -0.62% 1.43%
2074 -0.61% 1.45%
2073 -0.59% 1.47%
2072 -0.58% 1.5%
2071 -0.56% 1.53%
2070 -0.54% 1.55%
2069 -0.52% 1.57%
2068 -0.49% 1.6%
2067 -0.46% 1.62%
2066 -0.44% 1.68%
2065 -0.41% 1.69%
2064 -0.38% 1.71%
2063 -0.35% 1.74%
2062 -0.31% 1.76%
2061 -0.28% 1.78%
2060 -0.24% 1.81%
2059 -0.2% 1.84%
2058 -0.16% 1.87%
2057 -0.13% 1.92%
2056 -0.09% 1.94%
2055 -0.05% 1.95%
2054 -0.009% 1.97%
2053 0.03% 2%
2052 0.06% 2.03%
2051 0.1% 2.07%
2050 0.13% 2.09%
2049 0.16% 2.14%
2048 0.19% 2.18%
2047 0.22% 2.21%
2046 0.24% 2.23%
2045 0.26% 2.26%
2044 0.28% 2.28%
2043 0.3% 2.32%
2042 0.32% 2.34%
2041 0.34% 2.37%
2040 0.35% 2.41%
2039 0.37% 2.45%
2038 0.38% 2.47%
2037 0.4% 2.52%
2036 0.41% 2.54%
2035 0.43% 2.59%
2034 0.44% 2.59%
2033 0.46% 2.63%
2032 0.49% 2.68%
2031 0.51% 2.7%
2030 0.55% 2.74%
2029 0.61% 2.75%
2028 0.68% 2.79%
2027 0.76% 2.83%
2026 0.86% 2.89%
2025 0.99% 2.91%
2024 1.06% 2.92%
2023 1.21% 2.95%
2022 1.21% 2.99%
2021 0.83% 3.05%
2020 0.77% 3.04%
2019 1.08% 3.03%
2018 1.28% 3.21%
2017 1.45% 3.4%
2016 1.44% 3.47%
2015 1.37% 3.32%
2014 1.35% 3.13%
2013 1.32% 3.06%
2012 1.26% 2.92%
2011 1.24% 2.84%
2010 1.26% 2.58%
2009 1.25% 2.5%
2008 1.22% 2.74%
2007 1.65% 2.83%
2006 2.18% 2.84%
2005 2.24% 2.81%
2004 2.16% 2.75%
2003 1.11% 2.68%
2002 0.83% 2.62%
2001 1.56% 2.74%
2000 1.49% 2.88%
1999 1.43% 2.71%
1998 1.38% 2.67%
1997 1.21% 2.04%
1996 1.09% 1.85%
1995 1.11% 3.2%
1994 0.19% 3.92%
1993 0.36% 3.19%
1992 2% 2.53%
1991 2.75% 2.57%
1990 2.95% 2.64%
1989 2.96% 2.7%
1988 3.28% 3.08%
1987 3.65% 3.32%
1986 3.76% 3.37%
1985 3.74% 3.32%
1984 3.83% 3.32%
1983 3.97% 3.34%
1982 5.44% 3.1%
1981 5.39% 3.1%
1980 3.69% 3.21%
1979 3.5% 3.42%
1978 3.32% 3.59%
1977 3.15% 3.68%
1976 3.06% 3.7%
1975 3.07% 3.71%
1974 3% 3.67%
1973 2.97% 3.67%
1972 2.97% 3.63%
1971 3.03% 3.55%
1970 3.08% 3.5%
1969 3.05% 3.45%
1968 3.04% 3.29%
1967 3.09% 3.15%
1966 3.16% 3.11%
1965 3.19% 3.08%
1964 3.16% 3.04%
1963 3.12% 2.97%
1962 3.08% 2.94%
1961 3.05% 2.89%

Data sources: United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); World Bank | Health (1961–2024, retrieved 2026-04-06).

GeoRank.org/population/iran/tanzania | CC BY

In 2024, the population of Iran grew by 1.06%, while Tanzania's population grew by 2.92%.

Live population counters

Iran Tanzania
Current population
93468444
73145892
Population rank 17/197 20/197
Percent of world population 1.13% 0.88%
One net population change
32.9 seconds
16.2 seconds
One birth every
26.9 seconds
13.4 seconds
One death every
1.24 minutes
1.36 minutes
Daily growth/decline +2,627 +5,322
Annual growth/decline +959,031 +1,942,551
Annual growth/decline rate +1.06% +2.92%
Population growth rate rank 98/197 18/197
One migration net change every
4.51 minutes
41.4 minutes
Annual migration change +116,786 -12,730
Net migration rank 14/196 139/196
Foreign-born residents 3,840,654 462,371
Foreign-born residents rank 17/195 83/195
Foreign-born share of population 4.2% 0.7%
Foreign-born share rank 103/195 167/195

Natural population change vs migration

Iran
Natural

Migration
Tanzania
Natural

Migration
1x
Year Population change
Iran Tanzania
Natural Migration Natural Migration
2025 - 116,786 - -12,730
2024 - 190,156 - -29,865
2023 750,150 262,044 1,960,623 -39,388
2022 753,525 403,190 1,927,960 -37,557
2021 645,725 334,967 1,880,137 -7,704
2020 663,978 -180,680 1,861,377 -18,587
2019 893,063 -32,794 1,816,669 -63,602
2018 1,035,052 -27,946 1,777,852 -55,444
2017 1,140,549 34,849 1,726,909 119,142
2016 1,186,949 66,630 1,659,502 152,194
2015 1,178,317 -46,239 1,592,882 201,495
2014 1,158,552 -56,042 1,565,630 -21,083
2013 1,119,533 -47,322 1,509,008 1,241
2012 1,073,804 -57,823 1,439,325 -49,875
2011 1,023,925 -65,924 1,384,886 -84,546
2010 980,380 -12,849 1,363,477 -122,020
2009 958,322 211 1,332,015 -324,478
2008 940,983 -12,184 1,303,728 -184,816
2007 919,254 -24,950 1,278,285 -126,793
2006 884,529 640,932 1,257,927 -128,231
2005 837,305 765,873 1,224,165 -128,251
2004 801,203 739,996 1,175,379 -126,490
2003 732,600 700,222 1,118,435 -127,101
2002 752,205 -668,962 1,063,195 -118,047
2001 743,658 291,692 1,026,242 -125,375
2000 731,203 300,133 985,185 -9,701
1999 723,237 191,988 948,659 -4,489
1998 717,655 218,171 920,806 -105,184
1997 726,574 98,009 882,544 -13,400
1996 784,508 -92,435 868,524 -473,007
1995 879,648 -220,258 838,980 -109,971
1994 1,008,076 -297,487 803,953 349,348
1993 1,219,658 -1,696,091 778,044 288,004
1992 1,365,466 -451,945 767,961 -83,825
1991 1,495,594 -13,059 762,011 -91,851
1990 1,530,434 200,711 750,825 -80,529
1989 1,609,739 9,460 743,854 -71,268
1988 1,614,512 30,688 736,551 -71,012
1987 1,639,644 213,524 718,580 94,498
1986 1,659,289 242,411 705,677 24,101
1985 1,661,750 163,999 697,867 86,864
1984 1,653,051 97,748 687,435 -26,938
1983 1,573,612 204,544 679,720 58,161
1982 1,514,240 222,390 662,627 -37,883
1981 1,376,830 1,452,169 645,496 -42,485
1980 1,361,293 103,674 629,444 -42,588
1979 1,294,306 75,451 613,388 -4,792
1978 1,156,974 70,088 595,024 27,307
1977 1,091,542 68,093 574,938 49,997
1976 1,013,347 18,825 553,617 54,875
1975 929,481 106,921 533,906 53,290
1974 873,369 103,252 515,152 51,127
1973 831,880 104,779 488,429 48,363
1972 804,043 96,614 467,305 57,489
1971 805,830 77,717 449,014 41,900
1970 794,612 89,757 427,988 38,635
1969 780,660 78,196 408,322 37,006
1968 743,992 69,342 389,467 34,455
1967 727,276 77,313 374,763 5,265
1966 695,040 98,709 360,229 5,049
1965 663,029 127,808 343,456 4,742
1964 635,589 121,817 328,527 9,090
1963 620,126 110,190 314,644 4,333
1962 595,538 96,332 300,663 3,916
1961 594,674 77,811 286,839 8,338
1960 584,060 54,041 275,814 1,946

Data sources: World Bank | Health (1960–2025, retrieved 2026-04-06).

GeoRank.org/population/iran/tanzania | CC BY

Over the last 10 years, 92.5% of the population change in Iran is from natural causes (a gain of 9,405,860 people) and 7.46% is from migration (a gain of 757,979 people). In Tanzania 98.7% is from natural causes (a gain of 17,769,541 people) and 1.27% is from migration (a gain of 229,466 people).

As of 2024, 3,840,654 residents or 4.2% of the population were not native-born in Iran, compared to 462,371 people or 0.7% in Tanzania.

Biggest cities by population

Iran
City Population
Tehran 8.69M
Mashhad 3M
Isfahan 1.96M
Karaj 1.59M
Shiraz 1.57M
Tabriz 1.56M
Qom 1.2M
Ahvaz 1.18M
Kermanshah 947K
Urmia 736K
Tanzania
City Population
Dar es Salaam 4.72M
Zanzibar 710K
Mwanza 706K
Mbeya 542K
Arusha 416K
Tanga 221K
Dodoma 214K
Morogoro 207K
Moshi 145K
Stone Town 18K

Compare countries by 7 more topics

Population map with other countries

1x

Data sources: World Bank | Health (1960–2024, retrieved 2026-04-06); United Nations | World Population Prospects (1960–2026, retrieved 2026-03-10); U.S. Census Bureau (1960–2025, retrieved 2026-02-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20).

GeoRank.org/population/iran/tanzania | CC BY

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-04-06)
  2. United Nations | World Population Prospects (1960–2100, retrieved 2026-03-10)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-02-08)
  4. Wikidata (2026, retrieved 2026-02-08)
  5. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20)

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