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

Updated on by Georank

The latest officially reported population of Guinea-Bissau was 2,249,515 in 2025 vs 21,756,000 people in Sri Lanka in 2025. In 2026, based on the adjusted UN estimation, the current Guinea-Bissau's population is 2,323,460 people compared to 21,926,160 in Sri Lanka.

Population statistics:

  • Sri Lanka's population is 9.44 times bigger than Guinea-Bissau's.
  • Guinea-Bissau is ranked the 146th most populous country in the world, while Sri Lanka is the 63rd.
  • The countries together account for 0.29% of the world: 0.03% for Guinea-Bissau vs 0.26% for Sri Lanka.
  • For the last 10 years, Guinea-Bissau has had an average growth rate of +2.36% per year vs +0.42% in Sri Lanka.
  • Since 2006, the population of Guinea-Bissau has increased from 1.42M people to 2.32M (64.2% growth), while Sri Lanka has grown from 20.4M to 21.9M (7.73% growth).

Guinea-Bissau vs Sri Lanka: population by year and forecast

Guinea-Bissau
Factual

Projection
Sri Lanka
Factual

Projection
1x
Year Population
Guinea-Bissau Sri Lanka
2100 4,713,104 20,009,380
2099 4,706,098 20,121,095
2098 4,699,568 20,234,513
2097 4,691,855 20,345,619
2096 4,682,938 20,456,607
2095 4,674,608 20,566,246
2094 4,663,103 20,674,019
2093 4,651,788 20,780,946
2092 4,639,582 20,886,274
2091 4,628,423 20,990,047
2090 4,616,772 21,095,968
2089 4,604,837 21,198,788
2088 4,592,099 21,299,229
2087 4,578,407 21,398,269
2086 4,562,793 21,496,892
2085 4,547,020 21,594,661
2084 4,530,206 21,687,323
2083 4,514,557 21,778,597
2082 4,498,172 21,866,395
2081 4,481,590 21,954,337
2080 4,461,992 22,038,953
2079 4,440,836 22,122,744
2078 4,419,277 22,200,069
2077 4,395,599 22,274,355
2076 4,371,019 22,345,857
2075 4,343,934 22,414,609
2074 4,318,519 22,485,066
2073 4,290,772 22,550,427
2072 4,262,846 22,610,645
2071 4,234,576 22,669,042
2070 4,206,253 22,725,948
2069 4,176,501 22,779,050
2068 4,145,457 22,831,596
2067 4,114,243 22,885,941
2066 4,082,951 22,935,123
2065 4,048,502 22,985,942
2064 4,013,784 23,030,844
2063 3,978,328 23,071,114
2062 3,941,631 23,107,970
2061 3,904,197 23,139,924
2060 3,868,146 23,171,649
2059 3,829,277 23,199,387
2058 3,789,609 23,224,997
2057 3,750,140 23,247,211
2056 3,710,996 23,267,292
2055 3,670,229 23,278,653
2054 3,627,303 23,287,520
2053 3,586,333 23,297,347
2052 3,543,640 23,301,287
2051 3,498,845 23,302,108
2050 3,453,155 23,299,282
2049 3,405,764 23,293,630
2048 3,358,731 23,283,465
2047 3,310,142 23,267,251
2046 3,263,507 23,244,081
2045 3,214,677 23,212,221
2044 3,167,400 23,181,041
2043 3,120,097 23,144,217
2042 3,072,862 23,103,489
2041 3,025,833 23,056,478
2040 2,978,159 23,005,928
2039 2,929,364 22,948,866
2038 2,881,007 22,888,821
2037 2,832,794 22,822,943
2036 2,783,401 22,756,462
2035 2,736,240 22,685,766
2034 2,688,290 22,611,514
2033 2,638,427 22,532,374
2032 2,588,961 22,449,310
2031 2,540,013 22,364,063
2030 2,491,987 22,273,377
2029 2,444,278 22,181,300
2028 2,396,253 22,082,826
2027 2,347,151 21,979,196
2026 2,298,439 21,870,145
2025 2,249,515 21,756,000
2024 2,201,352 21,916,000
2023 2,153,339 22,037,000
2022 2,105,529 22,181,000
2021 2,058,841 22,156,000
2020 2,013,255 21,919,000
2019 1,967,696 21,803,000
2018 1,922,168 21,670,000
2017 1,877,072 21,453,000
2016 1,831,893 21,209,000
2015 1,786,457 20,970,000
2014 1,741,122 20,778,000
2013 1,695,973 20,585,000
2012 1,651,417 21,169,458
2011 1,608,076 21,009,048
2010 1,566,347 20,879,089
2009 1,526,377 20,756,435
2008 1,488,054 20,629,378
2007 1,450,986 20,492,545
2006 1,415,303 20,352,411
2005 1,381,585 20,216,524
2004 1,349,563 20,087,605
2003 1,318,806 19,951,521
2002 1,289,307 19,805,752
2001 1,261,273 19,600,362
2000 1,234,741 19,293,054
1999 1,210,206 18,944,731
1998 1,187,473 18,596,003
1997 1,165,545 18,248,200
1996 1,143,535 17,905,018
1995 1,119,949 17,564,068
1994 1,092,031 17,275,773
1993 1,058,745 17,025,918
1992 1,024,356 16,739,284
1991 994,639 16,475,354
1990 973,669 16,352,458
1989 957,789 16,248,557
1988 942,061 16,078,621
1987 926,862 15,916,576
1986 912,126 15,731,256
1985 897,697 15,544,154
1984 883,519 15,441,860
1983 869,592 15,388,794
1982 855,891 15,286,567
1981 842,432 15,099,414
1980 829,303 14,847,974
1979 819,867 14,579,614
1978 791,694 14,310,128
1977 741,789 14,049,371
1976 694,191 13,796,770
1975 650,966 13,548,984
1974 613,338 13,305,693
1973 592,808 13,060,916
1972 586,620 12,809,205
1971 586,221 12,551,910
1970 584,403 12,287,110
1969 581,610 12,013,858
1968 578,170 11,736,088
1967 569,011 11,457,328
1966 566,908 11,183,928
1965 575,005 10,916,965
1964 588,543 10,653,397
1963 594,418 10,395,040
1962 589,474 10,143,754
1961 582,532 9,899,372
1960 577,633 9,661,389

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/sri-lanka | CC BY

From 2006 to 2016, the population of Guinea-Bissau increased by 416,590 people (a 29.4% growth), while Sri Lanka gained 856,589 people (a 4.21% growth).

For the next 10 years, from 2016 to 2026, Guinea-Bissau gained 491,567 people (a 26.8% growth), while Sri Lanka's population increased by 717,160 people (a 3.38% growth).

Guinea-Bissau was ranked 148th most populous country in 2006 and is 146th in 2026. Sri Lanka was ranked 55th in 2006 and ranked 63rd 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 Sri Lanka will increase by 6.26% to 23,299,282 people and rank change from 63rd to 71st.

Guinea-Bissau is projected to reach its peak in 2100 at 4.71M people compared to the peak of 23.3M people in 2051 for Sri Lanka.

Population growth rate by year

Guinea-Bissau
Factual

Projection
Sri Lanka
Factual

Projection
1x
Year Growth rate
Guinea-Bissau Sri Lanka
2100 0.15% -0.56%
2099 0.14% -0.56%
2098 0.16% -0.55%
2097 0.19% -0.54%
2096 0.18% -0.53%
2095 0.25% -0.52%
2094 0.24% -0.51%
2093 0.26% -0.5%
2092 0.24% -0.49%
2091 0.25% -0.5%
2090 0.26% -0.49%
2089 0.28% -0.47%
2088 0.3% -0.46%
2087 0.34% -0.46%
2086 0.35% -0.45%
2085 0.37% -0.43%
2084 0.35% -0.42%
2083 0.36% -0.4%
2082 0.37% -0.4%
2081 0.44% -0.38%
2080 0.48% -0.38%
2079 0.49% -0.35%
2078 0.54% -0.33%
2077 0.56% -0.32%
2076 0.62% -0.31%
2075 0.59% -0.31%
2074 0.65% -0.29%
2073 0.66% -0.27%
2072 0.67% -0.26%
2071 0.67% -0.25%
2070 0.71% -0.23%
2069 0.75% -0.23%
2068 0.76% -0.24%
2067 0.77% -0.21%
2066 0.85% -0.22%
2065 0.86% -0.19%
2064 0.89% -0.17%
2063 0.93% -0.16%
2062 0.96% -0.14%
2061 0.93% -0.14%
2060 1.02% -0.12%
2059 1.05% -0.11%
2058 1.05% -0.1%
2057 1.05% -0.09%
2056 1.11% -0.05%
2055 1.18% -0.04%
2054 1.14% -0.04%
2053 1.2% -0.02%
2052 1.28% -0.004%
2051 1.32% 0.01%
2050 1.39% 0.02%
2049 1.4% 0.04%
2048 1.47% 0.07%
2047 1.43% 0.1%
2046 1.52% 0.14%
2045 1.49% 0.13%
2044 1.52% 0.16%
2043 1.54% 0.18%
2042 1.55% 0.2%
2041 1.6% 0.22%
2040 1.67% 0.25%
2039 1.68% 0.26%
2038 1.7% 0.29%
2037 1.77% 0.29%
2036 1.72% 0.31%
2035 1.78% 0.33%
2034 1.89% 0.35%
2033 1.91% 0.37%
2032 1.93% 0.38%
2031 1.93% 0.41%
2030 1.95% 0.42%
2029 2% 0.45%
2028 2.09% 0.47%
2027 2.12% 0.5%
2026 2.17% 0.52%
2025 2.19% -0.73%
2024 2.23% -0.55%
2023 2.27% -0.65%
2022 2.27% 0.11%
2021 2.26% 1.08%
2020 2.32% 0.53%
2019 2.37% 0.61%
2018 2.4% 1.01%
2017 2.47% 1.15%
2016 2.54% 1.14%
2015 2.6% 0.92%
2014 2.66% 0.94%
2013 2.7% -2.76%
2012 2.7% 0.76%
2011 2.66% 0.62%
2010 2.62% 0.59%
2009 2.58% 0.62%
2008 2.55% 0.67%
2007 2.52% 0.69%
2006 2.44% 0.67%
2005 2.37% 0.64%
2004 2.33% 0.68%
2003 2.29% 0.74%
2002 2.22% 1.05%
2001 2.15% 1.59%
2000 2.03% 1.84%
1999 1.91% 1.88%
1998 1.88% 1.91%
1997 1.92% 1.92%
1996 2.11% 1.94%
1995 2.56% 1.67%
1994 3.14% 1.47%
1993 3.36% 1.71%
1992 2.99% 1.6%
1991 2.15% 0.75%
1990 1.66% 0.64%
1989 1.67% 1.06%
1988 1.64% 1.02%
1987 1.62% 1.18%
1986 1.61% 1.2%
1985 1.6% 0.66%
1984 1.6% 0.34%
1983 1.6% 0.67%
1982 1.6% 1.24%
1981 1.58% 1.69%
1980 1.15% 1.84%
1979 3.56% 1.88%
1978 6.73% 1.86%
1977 6.86% 1.83%
1976 6.64% 1.83%
1975 6.13% 1.83%
1974 3.46% 1.87%
1973 1.05% 1.97%
1972 0.07% 2.05%
1971 0.31% 2.16%
1970 0.48% 2.27%
1969 0.59% 2.37%
1968 1.61% 2.43%
1967 0.37% 2.44%
1966 -1.41% 2.45%
1965 -2.3% 2.47%
1964 -0.99% 2.49%
1963 0.84% 2.48%
1962 1.19% 2.47%
1961 0.85% 2.46%

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/sri-lanka | CC BY

In 2025, the population of Guinea-Bissau grew by 2.19%, while Sri Lanka's population declined by 0.73%.

Live population counters

Guinea-Bissau Sri Lanka
Current population
2323460
21926160
Population rank 146/197 63/197
Percent of world population 0.03% 0.26%
One net population change
10.9 minutes
3.29 minutes
One birth every
8.08 minutes
2.37 minutes
One death every
34.1 minutes
3.07 minutes
Daily growth/decline +132 -438
Annual growth/decline +48,163 -160,000
Annual growth/decline rate +2.19% -0.73%
Population growth rate rank 41/197 190/197
One migration net change every
6.4 hours
17.2 minutes
Annual migration change -1,373 -30,724
Net migration rank 96/196 165/196
Foreign-born residents 15,064 40,698
Foreign-born residents rank 172/195 156/195
Foreign-born share of population 0.7% 0.2%
Foreign-born share rank 165/195 190/195

Natural population change vs migration

Guinea-Bissau
Natural

Migration
Sri Lanka
Natural

Migration
1x
Year Population change
Guinea-Bissau Sri Lanka
Natural Migration Natural Migration
2025 - -1,373 - -30,724
2024 49,642 -1,712 50,407 -27,245
2023 49,498 -1,400 66,111 -28,011
2022 48,920 -1,400 95,378 -27,435
2021 47,242 -1,395 121,858 -29,586
2020 46,718 -1,394 170,968 -29,875
2019 47,196 -1,395 172,243 -28,426
2018 46,659 -1,396 183,610 -28,607
2017 46,318 -1,398 187,993 -22,324
2016 46,814 -1,392 194,232 -18,388
2015 46,846 -1,393 201,815 -29,797
2014 46,615 -1,393 211,541 -33,672
2013 46,472 -1,395 221,021 -37,754
2012 45,480 -1,442 229,138 -41,955
2011 44,405 -1,760 224,461 -90,839
2010 43,067 -2,257 224,325 -98,060
2009 41,950 -2,821 200,175 -81,130
2008 40,841 -3,313 232,225 -97,144
2007 40,288 -3,676 248,287 -109,695
2006 38,886 -4,142 248,706 -107,045
2005 37,347 -4,662 248,683 -118,594
2004 36,495 -5,144 212,527 -84,795
2003 35,649 -5,487 252,008 -107,573
2002 34,561 -5,712 252,840 -105,718
2001 33,461 -6,239 244,377 19,273
2000 32,816 -6,971 227,060 123,894
1999 30,916 -7,686 206,876 138,799
1998 30,390 -8,163 201,059 150,724
1997 29,792 -8,176 208,193 135,636
1996 29,778 -7,369 215,290 127,236
1995 29,142 -4,376 221,957 117,416
1994 27,895 3,174 228,904 8,323
1993 26,943 8,562 226,257 36,232
1992 25,747 7,531 222,230 88,542
1991 24,527 1,621 218,117 -1,047
1990 23,936 -8,151 224,454 -195,736
1989 24,286 -8,296 212,401 -33,305
1988 23,940 -8,473 219,184 -58,415
1987 23,549 -8,622 226,414 -63,105
1986 23,301 -8,748 233,782 -26,460
1985 23,116 -8,812 247,836 -80,950
1984 22,861 -8,812 263,175 -225,450
1983 22,542 -8,729 277,768 -209,362
1982 22,131 -8,539 300,030 -163,987
1981 21,611 -8,291 328,096 -89,824
1980 21,024 -8,086 328,155 -63,541
1979 19,736 -13,801 329,791 -57,683
1978 17,468 32,936 317,055 -50,189
1977 15,484 33,922 300,038 -45,383
1976 13,688 32,113 291,816 -41,258
1975 11,998 28,645 282,496 -37,475
1974 10,321 24,290 275,521 -33,979
1973 8,430 -1,985 278,577 -30,582
1972 7,911 -1,985 282,494 -27,071
1971 8,183 -13,302 281,200 -22,021
1970 7,632 1,123 286,719 -16,299
1969 7,857 -11,033 286,218 -10,152
1968 7,289 2,769 286,642 -7,163
1967 6,742 1,516 284,738 -6,696
1966 6,955 -11,006 275,549 -6,794
1965 7,789 -19,928 272,422 -7,249
1964 8,989 -23,936 269,584 -7,614
1963 9,190 -5,993 262,880 -8,118
1962 10,662 -3,960 256,719 -8,909
1961 10,756 -3,575 251,087 -10,144
1960 10,618 -8,007 247,631 -12,610

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

GeoRank.org/population/guinea-bissau/sri-lanka | 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 Sri Lanka 84.3% is from natural causes (a gain of 1,444,615 people) and 15.7% is from migration (a loss of 269,694 people).

As of 2024, 15,064 residents or 0.7% of the population were not native-born in Guinea-Bissau, compared to 40,698 people or 0.2% in Sri Lanka.

Biggest cities by population

Guinea-Bissau
City Population
Bissau 492K
Bafata 29.6K
Sri Lanka
City Population
Colombo 648K
Gampaha 191K
Beruwala 165K
Negombo 142K
Kandy 120K
Sri Jayawardenepura Kotte 116K
Trincomalee 99.1K
Galle 93.1K
Matara 68.2K
Anuradhapura 63.2K

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/sri-lanka | 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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