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

Updated on by Georank

The latest officially reported population of Iran was 92,417,681 in 2025 vs 70,545,865 people in Tanzania in 2025. In 2026, based on the adjusted UN estimation, the current Iran's population is 93,580,141 people compared to 73,639,263 in Tanzania.

Population statistics:

  • Iran's population is 1.27 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 0.89% for Tanzania.
  • For the last 10 years, Iran has had an average growth rate of +1.15% per year vs +3.11% in Tanzania.
  • Since 2006, the population of Iran has increased from 73.4M people to 93.6M (27.5% growth), while Tanzania has grown from 40.3M to 73.6M (82.8% growth).

Iran vs Tanzania: population by year and forecast

Iran
Factual

Projection
Tanzania
Factual

Projection
1x
Year Population
Iran Tanzania
2100 80,660,972 265,471,550
2099 81,193,582 263,137,702
2098 81,717,474 260,784,676
2097 82,241,892 258,387,890
2096 82,764,411 255,972,277
2095 83,283,942 253,543,248
2094 83,799,806 251,095,452
2093 84,316,389 248,605,184
2092 84,833,108 246,083,651
2091 85,354,240 243,533,968
2090 85,878,473 240,979,094
2089 86,409,859 238,393,867
2088 86,947,263 235,775,056
2087 87,492,427 233,145,231
2086 88,047,949 230,474,072
2085 88,610,339 227,778,580
2084 89,181,346 225,090,075
2083 89,758,453 222,400,079
2082 90,343,413 219,697,321
2081 90,936,310 216,974,796
2080 91,535,218 214,235,505
2079 92,136,544 211,466,096
2078 92,740,467 208,688,171
2077 93,344,865 205,898,494
2076 93,946,187 203,086,766
2075 94,544,733 200,278,383
2074 95,135,317 197,449,196
2073 95,721,351 194,624,081
2072 96,292,835 191,805,820
2071 96,851,951 188,974,004
2070 97,397,073 186,134,634
2069 97,924,812 183,293,747
2068 98,432,509 180,458,385
2067 98,913,776 177,622,538
2066 99,374,357 174,786,430
2065 99,812,137 171,897,059
2064 100,223,387 169,048,435
2063 100,602,361 166,202,091
2062 100,951,282 163,354,473
2061 101,266,537 160,521,858
2060 101,545,806 157,707,240
2059 101,792,315 154,905,240
2058 101,994,395 152,106,040
2057 102,161,227 149,311,257
2056 102,291,323 146,505,507
2055 102,382,089 143,722,840
2054 102,431,558 140,970,467
2053 102,441,204 138,249,490
2052 102,413,350 135,540,803
2051 102,350,865 132,838,721
2050 102,251,999 130,145,345
2049 102,122,983 127,483,126
2048 101,957,508 124,809,212
2047 101,765,614 122,146,647
2046 101,547,098 119,511,124
2045 101,305,486 116,903,642
2044 101,038,874 114,318,843
2043 100,752,109 111,765,580
2042 100,446,296 109,231,423
2041 100,122,690 106,738,458
2040 99,784,572 104,262,479
2039 99,436,793 101,804,600
2038 99,072,548 99,370,760
2037 98,694,577 96,974,485
2036 98,302,279 94,592,848
2035 97,899,013 92,248,476
2034 97,482,352 89,920,872
2033 97,054,589 87,646,627
2032 96,608,216 85,401,853
2031 96,141,200 83,172,579
2030 95,656,003 80,989,443
2029 95,133,736 78,830,947
2028 94,561,150 76,723,335
2027 93,925,792 74,639,948
2026 93,215,072 72,582,361
2025 92,417,681 70,545,865
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 (2026–2100, retrieved 2026-07-08); World Bank | Health (1960–2025, retrieved 2026-07-08).

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 9,767,913 people (a 11.7% growth), while Tanzania's population increased by 19,815,250 people (a 36.8% 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 9.27% to 102,251,999 people with a rank change from 17th to 18th. The population of Tanzania will increase by 76.7% to 130,145,345 people and rank change from 20th to 15th.

Iran is projected to reach its peak in 2053 at 102M 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 0.93% 2.9%
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 (2026–2100, retrieved 2026-07-08); World Bank | Health (1961–2025, retrieved 2026-07-08).

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

In 2025, the population of Iran grew by 0.93%, while Tanzania's population grew by 2.9%.

Live population counters

Iran Tanzania
Current population
93580141
73639263
Population rank 17/197 20/197
Percent of world population 1.13% 0.89%
One net population change
37.2 seconds
15.9 seconds
One birth every
27.4 seconds
13.2 seconds
One death every
1.21 minutes
1.34 minutes
Daily growth/decline +2,329 +5,440
Annual growth/decline +849,943 +1,985,708
Annual growth/decline rate +0.93% +2.9%
Population growth rate rank 103/197 16/197
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 715,785 190,156 1,993,730 -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 2026-07-08).

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

Over the last 10 years, 89.9% of the population change in Iran is from natural causes (a gain of 8,963,093 people) and 10.1% is from migration (a gain of 1,004,177 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, 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
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/iran/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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