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Population in Guinea-Bissau compared to Iran: Trends, Charts, Rankings

Updated on by Georank

The latest officially reported population of Guinea-Bissau was 2,249,515 in 2025 vs 92,417,681 people in Iran in 2025. In 2026, based on the adjusted UN estimation, the current Guinea-Bissau's population is 2,323,460 people compared to 93,580,141 in Iran.

Population statistics:

  • Iran's population is 40.3 times bigger than Guinea-Bissau's.
  • Guinea-Bissau is ranked the 146th most populous country in the world, while Iran is the 17th.
  • The countries together account for 1.15% of the world: 0.03% for Guinea-Bissau vs 1.13% for Iran.
  • For the last 10 years, Guinea-Bissau has had an average growth rate of +2.36% per year vs +1.15% in Iran.
  • Since 2006, the population of Guinea-Bissau has increased from 1.42M people to 2.32M (64.2% growth), while Iran has grown from 73.4M to 93.6M (27.5% growth).

Guinea-Bissau vs Iran: population by year and forecast

Guinea-Bissau
Factual

Projection
Iran
Factual

Projection
1x
Year Population
Guinea-Bissau Iran
2100 4,713,104 80,660,972
2099 4,706,098 81,193,582
2098 4,699,568 81,717,474
2097 4,691,855 82,241,892
2096 4,682,938 82,764,411
2095 4,674,608 83,283,942
2094 4,663,103 83,799,806
2093 4,651,788 84,316,389
2092 4,639,582 84,833,108
2091 4,628,423 85,354,240
2090 4,616,772 85,878,473
2089 4,604,837 86,409,859
2088 4,592,099 86,947,263
2087 4,578,407 87,492,427
2086 4,562,793 88,047,949
2085 4,547,020 88,610,339
2084 4,530,206 89,181,346
2083 4,514,557 89,758,453
2082 4,498,172 90,343,413
2081 4,481,590 90,936,310
2080 4,461,992 91,535,218
2079 4,440,836 92,136,544
2078 4,419,277 92,740,467
2077 4,395,599 93,344,865
2076 4,371,019 93,946,187
2075 4,343,934 94,544,733
2074 4,318,519 95,135,317
2073 4,290,772 95,721,351
2072 4,262,846 96,292,835
2071 4,234,576 96,851,951
2070 4,206,253 97,397,073
2069 4,176,501 97,924,812
2068 4,145,457 98,432,509
2067 4,114,243 98,913,776
2066 4,082,951 99,374,357
2065 4,048,502 99,812,137
2064 4,013,784 100,223,387
2063 3,978,328 100,602,361
2062 3,941,631 100,951,282
2061 3,904,197 101,266,537
2060 3,868,146 101,545,806
2059 3,829,277 101,792,315
2058 3,789,609 101,994,395
2057 3,750,140 102,161,227
2056 3,710,996 102,291,323
2055 3,670,229 102,382,089
2054 3,627,303 102,431,558
2053 3,586,333 102,441,204
2052 3,543,640 102,413,350
2051 3,498,845 102,350,865
2050 3,453,155 102,251,999
2049 3,405,764 102,122,983
2048 3,358,731 101,957,508
2047 3,310,142 101,765,614
2046 3,263,507 101,547,098
2045 3,214,677 101,305,486
2044 3,167,400 101,038,874
2043 3,120,097 100,752,109
2042 3,072,862 100,446,296
2041 3,025,833 100,122,690
2040 2,978,159 99,784,572
2039 2,929,364 99,436,793
2038 2,881,007 99,072,548
2037 2,832,794 98,694,577
2036 2,783,401 98,302,279
2035 2,736,240 97,899,013
2034 2,688,290 97,482,352
2033 2,638,427 97,054,589
2032 2,588,961 96,608,216
2031 2,540,013 96,141,200
2030 2,491,987 95,656,003
2029 2,444,278 95,133,736
2028 2,396,253 94,561,150
2027 2,347,151 93,925,792
2026 2,298,439 93,215,072
2025 2,249,515 92,417,681
2024 2,201,352 91,567,738
2023 2,153,339 90,608,707
2022 2,105,529 89,524,246
2021 2,058,841 88,455,488
2020 2,013,255 87,723,443
2019 1,967,696 87,051,648
2018 1,922,168 86,117,998
2017 1,877,072 85,026,754
2016 1,831,893 83,812,228
2015 1,786,457 82,619,362
2014 1,741,122 81,502,045
2013 1,695,973 80,414,686
2012 1,651,417 79,370,580
2011 1,608,076 78,383,598
2010 1,566,347 77,420,842
2009 1,526,377 76,457,825
2008 1,488,054 75,514,204
2007 1,450,986 74,602,648
2006 1,415,303 73,392,747
2005 1,381,585 71,828,455
2004 1,349,563 70,256,316
2003 1,318,806 68,769,340
2002 1,289,307 68,011,317
2001 1,261,273 67,452,005
2000 1,234,741 66,418,659
1999 1,210,206 65,445,391
1998 1,187,473 64,519,859
1997 1,165,545 63,639,638
1996 1,143,535 62,881,300
1995 1,119,949 62,205,567
1994 1,092,031 61,520,598
1993 1,058,745 61,403,543
1992 1,024,356 61,184,983
1991 994,639 59,986,931
1990 973,669 58,380,092
1989 957,789 56,704,914
1988 942,061 55,072,694
1987 926,862 53,323,493
1986 912,126 51,446,045
1985 897,697 49,582,289
1984 883,519 47,793,998
1983 869,592 46,029,535
1982 855,891 44,272,141
1981 842,432 41,989,312
1980 829,303 39,842,324
1979 819,867 38,424,952
1978 791,694 37,126,535
1977 741,789 35,933,181
1976 694,191 34,837,271
1975 650,966 33,802,973
1974 613,338 32,796,463
1973 592,808 31,839,838
1972 586,620 30,921,179
1971 586,221 30,029,071
1970 584,403 29,145,100
1969 581,610 28,273,482
1968 578,170 27,437,391
1967 569,011 26,628,432
1966 566,908 25,829,270
1965 575,005 25,036,978
1964 588,543 24,262,859
1963 594,418 23,519,005
1962 589,474 22,807,907
1961 582,532 22,125,726
1960 577,633 21,470,434

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/guinea-bissau/iran | CC BY

From 2006 to 2016, the population of Guinea-Bissau increased by 416,590 people (a 29.4% growth), while Iran gained 10,419,481 people (a 14.2% growth).

For the next 10 years, from 2016 to 2026, Guinea-Bissau gained 491,567 people (a 26.8% growth), while Iran's population increased by 9,767,913 people (a 11.7% growth).

Guinea-Bissau was ranked 148th most populous country in 2006 and is 146th in 2026. Iran was ranked 17th in 2006 and still ranked 17th now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Guinea-Bissau's population will grow by 48.6% to 3,453,155 people with a rank change from 146th to 136th. The population of Iran will increase by 9.27% to 102,251,999 people and rank change from 17th to 18th.

Guinea-Bissau is projected to reach its peak in 2100 at 4.71M people compared to the peak of 102M people in 2053 for Iran.

Population growth rate by year

Guinea-Bissau
Factual

Projection
Iran
Factual

Projection
1x
Year Growth rate
Guinea-Bissau Iran
2100 0.15% -0.66%
2099 0.14% -0.64%
2098 0.16% -0.64%
2097 0.19% -0.63%
2096 0.18% -0.62%
2095 0.25% -0.62%
2094 0.24% -0.61%
2093 0.26% -0.61%
2092 0.24% -0.61%
2091 0.25% -0.61%
2090 0.26% -0.61%
2089 0.28% -0.62%
2088 0.3% -0.62%
2087 0.34% -0.63%
2086 0.35% -0.63%
2085 0.37% -0.64%
2084 0.35% -0.64%
2083 0.36% -0.65%
2082 0.37% -0.65%
2081 0.44% -0.65%
2080 0.48% -0.65%
2079 0.49% -0.65%
2078 0.54% -0.65%
2077 0.56% -0.64%
2076 0.62% -0.63%
2075 0.59% -0.62%
2074 0.65% -0.61%
2073 0.66% -0.59%
2072 0.67% -0.58%
2071 0.67% -0.56%
2070 0.71% -0.54%
2069 0.75% -0.52%
2068 0.76% -0.49%
2067 0.77% -0.46%
2066 0.85% -0.44%
2065 0.86% -0.41%
2064 0.89% -0.38%
2063 0.93% -0.35%
2062 0.96% -0.31%
2061 0.93% -0.28%
2060 1.02% -0.24%
2059 1.05% -0.2%
2058 1.05% -0.16%
2057 1.05% -0.13%
2056 1.11% -0.09%
2055 1.18% -0.05%
2054 1.14% -0.009%
2053 1.2% 0.03%
2052 1.28% 0.06%
2051 1.32% 0.1%
2050 1.39% 0.13%
2049 1.4% 0.16%
2048 1.47% 0.19%
2047 1.43% 0.22%
2046 1.52% 0.24%
2045 1.49% 0.26%
2044 1.52% 0.28%
2043 1.54% 0.3%
2042 1.55% 0.32%
2041 1.6% 0.34%
2040 1.67% 0.35%
2039 1.68% 0.37%
2038 1.7% 0.38%
2037 1.77% 0.4%
2036 1.72% 0.41%
2035 1.78% 0.43%
2034 1.89% 0.44%
2033 1.91% 0.46%
2032 1.93% 0.49%
2031 1.93% 0.51%
2030 1.95% 0.55%
2029 2% 0.61%
2028 2.09% 0.68%
2027 2.12% 0.76%
2026 2.17% 0.86%
2025 2.19% 0.93%
2024 2.23% 1.06%
2023 2.27% 1.21%
2022 2.27% 1.21%
2021 2.26% 0.83%
2020 2.32% 0.77%
2019 2.37% 1.08%
2018 2.4% 1.28%
2017 2.47% 1.45%
2016 2.54% 1.44%
2015 2.6% 1.37%
2014 2.66% 1.35%
2013 2.7% 1.32%
2012 2.7% 1.26%
2011 2.66% 1.24%
2010 2.62% 1.26%
2009 2.58% 1.25%
2008 2.55% 1.22%
2007 2.52% 1.65%
2006 2.44% 2.18%
2005 2.37% 2.24%
2004 2.33% 2.16%
2003 2.29% 1.11%
2002 2.22% 0.83%
2001 2.15% 1.56%
2000 2.03% 1.49%
1999 1.91% 1.43%
1998 1.88% 1.38%
1997 1.92% 1.21%
1996 2.11% 1.09%
1995 2.56% 1.11%
1994 3.14% 0.19%
1993 3.36% 0.36%
1992 2.99% 2%
1991 2.15% 2.75%
1990 1.66% 2.95%
1989 1.67% 2.96%
1988 1.64% 3.28%
1987 1.62% 3.65%
1986 1.61% 3.76%
1985 1.6% 3.74%
1984 1.6% 3.83%
1983 1.6% 3.97%
1982 1.6% 5.44%
1981 1.58% 5.39%
1980 1.15% 3.69%
1979 3.56% 3.5%
1978 6.73% 3.32%
1977 6.86% 3.15%
1976 6.64% 3.06%
1975 6.13% 3.07%
1974 3.46% 3%
1973 1.05% 2.97%
1972 0.07% 2.97%
1971 0.31% 3.03%
1970 0.48% 3.08%
1969 0.59% 3.05%
1968 1.61% 3.04%
1967 0.37% 3.09%
1966 -1.41% 3.16%
1965 -2.3% 3.19%
1964 -0.99% 3.16%
1963 0.84% 3.12%
1962 1.19% 3.08%
1961 0.85% 3.05%

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/guinea-bissau/iran | CC BY

In 2025, the population of Guinea-Bissau grew by 2.19%, while Iran's population grew by 0.93%.

Live population counters

Guinea-Bissau Iran
Current population
2323460
93580141
Population rank 146/197 17/197
Percent of world population 0.03% 1.13%
One net population change
10.9 minutes
37.2 seconds
One birth every
8.08 minutes
27.4 seconds
One death every
34.1 minutes
1.21 minutes
Daily growth/decline +132 +2,329
Annual growth/decline +48,163 +849,943
Annual growth/decline rate +2.19% +0.93%
Population growth rate rank 41/197 103/197
One migration net change every
6.4 hours
4.51 minutes
Annual migration change -1,373 +116,786
Net migration rank 96/196 14/196
Foreign-born residents 15,064 3,840,654
Foreign-born residents rank 172/195 17/195
Foreign-born share of population 0.7% 4.2%
Foreign-born share rank 165/195 103/195

Natural population change vs migration

Guinea-Bissau
Natural

Migration
Iran
Natural

Migration
1x
Year Population change
Guinea-Bissau Iran
Natural Migration Natural Migration
2025 - -1,373 - 116,786
2024 49,642 -1,712 715,785 190,156
2023 49,498 -1,400 750,150 262,044
2022 48,920 -1,400 753,525 403,190
2021 47,242 -1,395 645,725 334,967
2020 46,718 -1,394 663,978 -180,680
2019 47,196 -1,395 893,063 -32,794
2018 46,659 -1,396 1,035,052 -27,946
2017 46,318 -1,398 1,140,549 34,849
2016 46,814 -1,392 1,186,949 66,630
2015 46,846 -1,393 1,178,317 -46,239
2014 46,615 -1,393 1,158,552 -56,042
2013 46,472 -1,395 1,119,533 -47,322
2012 45,480 -1,442 1,073,804 -57,823
2011 44,405 -1,760 1,023,925 -65,924
2010 43,067 -2,257 980,380 -12,849
2009 41,950 -2,821 958,322 211
2008 40,841 -3,313 940,983 -12,184
2007 40,288 -3,676 919,254 -24,950
2006 38,886 -4,142 884,529 640,932
2005 37,347 -4,662 837,305 765,873
2004 36,495 -5,144 801,203 739,996
2003 35,649 -5,487 732,600 700,222
2002 34,561 -5,712 752,205 -668,962
2001 33,461 -6,239 743,658 291,692
2000 32,816 -6,971 731,203 300,133
1999 30,916 -7,686 723,237 191,988
1998 30,390 -8,163 717,655 218,171
1997 29,792 -8,176 726,574 98,009
1996 29,778 -7,369 784,508 -92,435
1995 29,142 -4,376 879,648 -220,258
1994 27,895 3,174 1,008,076 -297,487
1993 26,943 8,562 1,219,658 -1,696,091
1992 25,747 7,531 1,365,466 -451,945
1991 24,527 1,621 1,495,594 -13,059
1990 23,936 -8,151 1,530,434 200,711
1989 24,286 -8,296 1,609,739 9,460
1988 23,940 -8,473 1,614,512 30,688
1987 23,549 -8,622 1,639,644 213,524
1986 23,301 -8,748 1,659,289 242,411
1985 23,116 -8,812 1,661,750 163,999
1984 22,861 -8,812 1,653,051 97,748
1983 22,542 -8,729 1,573,612 204,544
1982 22,131 -8,539 1,514,240 222,390
1981 21,611 -8,291 1,376,830 1,452,169
1980 21,024 -8,086 1,361,293 103,674
1979 19,736 -13,801 1,294,306 75,451
1978 17,468 32,936 1,156,974 70,088
1977 15,484 33,922 1,091,542 68,093
1976 13,688 32,113 1,013,347 18,825
1975 11,998 28,645 929,481 106,921
1974 10,321 24,290 873,369 103,252
1973 8,430 -1,985 831,880 104,779
1972 7,911 -1,985 804,043 96,614
1971 8,183 -13,302 805,830 77,717
1970 7,632 1,123 794,612 89,757
1969 7,857 -11,033 780,660 78,196
1968 7,289 2,769 743,992 69,342
1967 6,742 1,516 727,276 77,313
1966 6,955 -11,006 695,040 98,709
1965 7,789 -19,928 663,029 127,808
1964 8,989 -23,936 635,589 121,817
1963 9,190 -5,993 620,126 110,190
1962 10,662 -3,960 595,538 96,332
1961 10,756 -3,575 594,674 77,811
1960 10,618 -8,007 584,060 54,041

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

GeoRank.org/population/guinea-bissau/iran | CC BY

Over the last 10 years, 97.1% of the population change in Guinea-Bissau is from natural causes (a gain of 475,853 people) and 2.91% is from migration (a loss of 14,275 people). In Iran 89.9% is from natural causes (a gain of 8,963,093 people) and 10.1% is from migration (a gain of 1,004,177 people).

As of 2024, 15,064 residents or 0.7% of the population were not native-born in Guinea-Bissau, compared to 3,840,654 people or 4.2% in Iran.

Biggest cities by population

Guinea-Bissau
City Population
Bissau 492K
Bafata 29.6K
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

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/guinea-bissau/iran | 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. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08)
  5. Wikidata (2026, retrieved 2026-07-08)

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