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Fertility & birth rates in Guinea-Bissau and Saint Kitts and Nevis

Updated on by Georank team

Guinea-Bissau has an annual birth rate of 30 births per 1,000 people, compared to 11.7 for Saint Kitts and Nevis. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 3.84 in Guinea-Bissau and 1.51 in Saint Kitts and Nevis — 60.8% difference.

1960 vs 2023, the fertility rate has decreased by 35.2% in Guinea-Bissau and by 77% in Saint Kitts and Nevis — in 1960, it was 5.92 and 6.54, respectively.

  • Guinea-Bissau is ranked 32/196 by birth rate compared to 119/196 for Saint Kitts and Nevis.
  • The mean age at childbearing (for all the births, not just the first) is 29.4 in Guinea-Bissau — it's 27.6 in Saint Kitts and Nevis.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 82 in Guinea-Bissau vs 35.2 in Saint Kitts and Nevis.
  • In Guinea-Bissau, 25.5% of the population is composed of women of reproductive age (15-49), compared to 27.1% in Saint Kitts and Nevis.

Fertility rate in Guinea-Bissau vs Saint Kitts and Nevis by year

Guinea-Bissau
Saint Kitts and Nevis
1x
Year Fertility rate
Guinea-Bissau Saint Kitts
2023 3.84 1.51
2022 3.91 1.51
2021 4 1.53
2020 4.08 1.55
2019 4.15 1.57
2018 4.24 1.59
2017 4.35 1.61
2016 4.52 1.63
2015 4.66 1.64
2014 4.79 1.67
2013 4.93 1.68
2012 5 1.71
2011 5.07 1.74
2010 5.11 1.76
2009 5.18 1.8
2008 5.27 1.83
2007 5.37 1.87
2006 5.41 1.9
2005 5.46 1.93
2004 5.5 1.96
2003 5.58 2
2002 5.63 2.04
2001 5.69 2.08
2000 5.79 2.13
1999 5.87 2.26
1998 5.97 2.31
1997 6.06 2.3
1996 6.14 2.26
1995 6.22 2.3
1994 6.3 2.31
1993 6.37 2.38
1992 6.44 2.43
1991 6.47 2.6
1990 6.5 2.73
1989 6.66 2.69
1988 6.69 2.62
1987 6.72 2.62
1986 6.73 2.68
1985 6.74 2.82
1984 6.73 2.88
1983 6.69 3.1
1982 6.64 3.18
1981 6.57 3.3
1980 6.49 3.26
1979 6.4 3.23
1978 6.32 3.29
1977 6.25 3.48
1976 6.19 3.59
1975 6.15 3.68
1974 6.12 3.81
1973 6.1 3.97
1972 6.08 4.16
1971 6.06 4.51
1970 6.04 4.73
1969 6.02 4.97
1968 6.01 5.17
1967 5.99 5.46
1966 5.98 5.78
1965 5.97 6.01
1964 5.96 6.08
1963 5.95 6.12
1962 5.94 6.06
1961 5.93 6.27
1960 5.92 6.54

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/guinea-bissau/saint-kitts-and-nevis | CC BY

According to the latest available data on birth rates, the fertility rate in Guinea-Bissau was 3.84 children per woman in 2023, compared to 1.51 in Saint Kitts and Nevis in 2023. The replacement level is considered to be 2.1 children per woman.

Check Guinea-Bissau vs Saint Kitts and Nevis population clock for a dynamic visualization of the changing population.

Natural population change by year

Guinea-Bissau
Saint Kitts and Nevis
1x
Year Natural population change
Guinea-Bissau Saint Kitts
2023 49,498 84
2022 48,920 14
2021 47,242 -20
2020 46,718 98
2019 47,196 135
2018 46,659 150
2017 46,318 169
2016 46,814 185
2015 46,846 197
2014 46,615 213
2013 46,472 227
2012 45,480 246
2011 44,405 250
2010 43,067 274
2009 41,950 300
2008 40,841 322
2007 40,288 341
2006 38,886 355
2005 37,347 361
2004 36,495 365
2003 35,649 369
2002 34,561 365
2001 33,461 369
2000 32,816 376
1999 30,916 413
1998 30,390 415
1997 29,792 405
1996 29,778 379
1995 29,142 382
1994 27,895 370
1993 26,943 373
1992 25,747 369
1991 24,527 411
1990 23,936 471
1989 24,286 476
1988 23,940 471
1987 23,549 486
1986 23,301 520
1985 23,116 574
1984 22,861 598
1983 22,542 664
1982 22,131 672
1981 21,611 684
1980 21,024 652
1979 19,736 643
1978 17,468 654
1977 15,484 697
1976 13,688 703
1975 11,998 688
1974 10,321 670
1973 8,430 646
1972 7,911 619
1971 8,183 615
1970 7,632 611
1969 7,857 708
1968 7,289 812
1967 6,742 951
1966 6,955 1,103
1965 7,789 1,228
1964 8,989 1,305
1963 9,190 1,360
1962 10,662 1,373
1961 10,756 1,466
1960 10,618 1,562

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/guinea-bissau/saint-kitts-and-nevis | CC BY

The chart above illustrates the comparison of the absolute yearly changes in population resulting from births and deaths.

Excluding migration, the natural population change due to births and deaths from 2022 to 2023 was +2.3% in Guinea-Bissau and +0.18% in Saint Kitts and Nevis.

For the past 10 years, the annual natural population change has been +2.44% in Guinea-Bissau and +0.26% in Saint Kitts and Nevis.

Birth rate in Guinea-Bissau vs Saint Kitts and Nevis by year

Guinea-Bissau
Saint Kitts and Nevis

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Guinea-Bissau Saint Kitts
2023 30 11.7
2022 30.5 12
2021 31 12.3
2020 31.4 12.6
2019 31.8 12.9
2018 32.4 13.1
2017 33 13.4
2016 34.2 13.6
2015 35.2 13.7
2014 36.1 14
2013 37.1 14.1
2012 37.6 14.4
2011 38 14.7
2010 38.3 14.9
2009 38.7 15.3
2008 39.3 15.6
2007 40 15.9
2006 40.3 16.1
2005 40.6 16.3
2004 40.8 16.5
2003 41.3 16.8
2002 41.6 16.9
2001 41.8 17.3
2000 42.3 17.7
1999 42.7 18.9
1998 43.2 19.5
1997 43.6 19.5
1996 43.9 19.3
1995 44.3 19.7
1994 44.5 19.7
1993 44.6 20.2
1992 44.8 20.6
1991 44.9 22.1
1990 45.3 23.7
1989 46.5 23.7
1988 46.8 23.4
1987 47.2 23.6
1986 47.7 24.3
1985 48.1 25.5
1984 48.4 26.1
1983 48.7 27.7
1982 48.8 28
1981 48.8 28.4
1980 48.6 27.6
1979 47.8 27.1
1978 45.3 27.2
1977 44 28
1976 42.5 28
1975 40.8 27.6
1974 38.8 27.1
1973 39.1 26.5
1972 38.6 25.9
1971 39.5 25.9
1970 38.6 25.8
1969 39.6 27.7
1968 38.8 29.4
1967 38.6 31.9
1966 40 34.5
1965 41.9 36.7
1964 44 37.9
1963 44.1 38.8
1962 44.6 38.9
1961 45.2 40.7
1960 45.4 42.6

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/guinea-bissau/saint-kitts-and-nevis | CC BY

The latest reported birth rate per 1,000 people in 2023 was 30 in Guinea-Bissau and 11.7 in Saint Kitts and Nevis, compared with 45.4 and 42.6, respectively, in 1960.

Birth rate data compared

Guinea-Bissau Saint Kitts
Fertility rate 3.84 1.51
Fertility rate rank 32/196 141/196
Birth rate 30 11.7
Birth rate rank 32/196 119/196
Population change due to births and deaths +49,498 +84
Natural population change rank 95/196 154/196
Natural population change rate +2.3% +0.18%
Population growth +2.23% +0.18%
Population growth rank 42/197 156/197
Average age at childbearing 29.4 years 27.6 years
Annual births per 1,000 women ages 15-19 78.1 39.2
Annual births per 1,000 women ages 20-29 164.4 76.3
Annual births per 1,000 women ages 30+ 58.1 13.6
Female of reproductive age (15-49), share of population 25.5% 27.1%
Any modern method of contraceptive prevalence among married women ages 15-49 20.2% n/a
Share of births attended by skilled health staff 53.8% 100%
Maternal mortality per live birth 0.51% 0.07%
Neonatal mortality rate (before reaching 28 days of age) 3.27% 1.03%
Infant mortality rate (before reaching 1 year of age) 4.31% 1.43%
Mortality rate before reaching 5 years of age 6.93% 1.63%
Life expectancy 64.6 years 72.6 years

Children 0-14 years as share of population

Guinea-Bissau
Factual

UN forecast
Saint Kitts and Nevis
Factual

UN forecast
1x
Year Young
Guinea-Bissau Saint Kitts
2100 19.7% 12.8%
2099 19.8% 12.8%
2098 19.9% 12.8%
2097 20% 12.8%
2096 20.2% 12.8%
2095 20.3% 12.9%
2094 20.4% 12.9%
2093 20.5% 12.9%
2092 20.6% 12.9%
2091 20.8% 12.9%
2090 20.9% 12.9%
2089 21% 12.9%
2088 21.2% 12.9%
2087 21.3% 13%
2086 21.5% 13%
2085 21.6% 13%
2084 21.8% 13%
2083 21.9% 13%
2082 22.1% 13%
2081 22.2% 13%
2080 22.4% 13%
2079 22.6% 13%
2078 22.7% 13%
2077 22.9% 13%
2076 23.1% 13%
2075 23.3% 13.1%
2074 23.4% 13.1%
2073 23.6% 13.1%
2072 23.8% 13.1%
2071 24% 13.2%
2070 24.2% 13.2%
2069 24.4% 13.2%
2068 24.6% 13.3%
2067 24.8% 13.3%
2066 25.1% 13.4%
2065 25.3% 13.4%
2064 25.5% 13.5%
2063 25.7% 13.5%
2062 26% 13.6%
2061 26.2% 13.6%
2060 26.5% 13.7%
2059 26.7% 13.7%
2058 27% 13.8%
2057 27.3% 13.9%
2056 27.5% 13.9%
2055 27.8% 14%
2054 28.1% 14.1%
2053 28.4% 14.1%
2052 28.7% 14.2%
2051 29% 14.3%
2050 29.3% 14.4%
2049 29.6% 14.4%
2048 29.9% 14.5%
2047 30.2% 14.6%
2046 30.5% 14.7%
2045 30.9% 14.8%
2044 31.2% 14.9%
2043 31.5% 15%
2042 31.9% 15.1%
2041 32.2% 15.3%
2040 32.5% 15.5%
2039 32.9% 15.6%
2038 33.2% 15.8%
2037 33.6% 16%
2036 33.9% 16.2%
2035 34.3% 16.4%
2034 34.6% 16.6%
2033 35% 16.9%
2032 35.3% 17.1%
2031 35.7% 17.4%
2030 36.2% 17.6%
2029 36.6% 17.8%
2028 37.1% 18.1%
2027 37.6% 18.3%
2026 38.1% 18.5%
2025 38.6% 18.2%
2024 38.8% 18.2%
2023 39.2% 18.3%
2022 39.7% 18.6%
2021 40.1% 18.8%
2020 40.5% 19.1%
2019 40.9% 19.3%
2018 41.3% 19.6%
2017 41.7% 19.9%
2016 42% 20.2%
2015 42.2% 20.6%
2014 42.5% 21.1%
2013 42.7% 21.7%
2012 42.8% 22.2%
2011 43% 22.7%
2010 43.2% 23.3%
2009 43.3% 24%
2008 43.5% 24.4%
2007 43.6% 24.8%
2006 43.8% 25.3%
2005 43.9% 26%
2004 44% 26.6%
2003 44.2% 27.4%
2002 44.3% 28.1%
2001 44.5% 28.8%
2000 44.7% 29.3%
1999 44.8% 29.7%
1998 45% 30.1%
1997 45.1% 30.6%
1996 45.2% 31.1%
1995 45.3% 31.7%
1994 45.4% 32.3%
1993 45.4% 32.9%
1992 45.5% 33.6%
1991 45.5% 34.1%
1990 45.7% 34.2%
1989 45.8% 34.1%
1988 45.9% 34.1%
1987 45.9% 34.2%
1986 46% 34.3%
1985 45.9% 34.5%
1984 45.9% 34.7%
1983 45.7% 35.1%
1982 45.5% 35.6%
1981 45.3% 36.2%
1980 45% 36.9%
1979 45.1% 37.6%
1978 44.8% 38.2%
1977 43.7% 38.8%
1976 42.6% 39.6%
1975 41.8% 40.5%
1974 41.4% 41.6%
1973 41.6% 42.9%
1972 41.9% 44.3%
1971 41.9% 45.8%
1970 41.9% 47.2%
1969 41.9% 47.7%
1968 41.8% 47.4%
1967 42.1% 47%
1966 41.9% 46.6%
1965 41% 46.3%
1964 39.6% 46.1%
1963 38.4% 46%
1962 37.7% 45.8%
1961 37.1% 45.7%
1960 36.9% 45.6%

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

GeoRank.org/birth-rate/guinea-bissau/saint-kitts-and-nevis | CC BY

Children aged 0-14 make up 38.8% of the population in Guinea-Bissau and 18.2% in Saint Kitts and Nevis in 2024, compared to 45.7% and 34.2% respectively in 1990.

Demographics of Guinea-Bissau and Saint Kitts and Nevis compared.

Fertility rates around the globe

1x

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/guinea-bissau/saint-kitts-and-nevis | CC BY

Maternal mortality chart: Guinea-Bissau vs Saint Kitts and Nevis

Guinea-Bissau
Saint Kitts and Nevis
1x
Year Maternal mortality per 100K births
Guinea-Bissau Saint Kitts
2023 505 74
2022 539 99
2021 617 111
2020 603 80
2019 598 74
2018 585 78
2017 597 74
2016 617 75
2015 631 76
2014 662 82
2013 707 82
2012 704 88
2011 678 90
2010 698 92
2009 753 93
2008 802 95
2007 792 96
2006 831 99
2005 956 102
2004 980 104
2003 1,069 111
2002 1,141 115
2001 1,222 131
2000 1,295 143
1999 1,461 164
1998 1,465 193
1997 1,642 194
1996 1,539 194
1995 1,556 204
1994 1,644 205
1993 1,613 225
1992 1,633 255
1991 1,663 280
1990 1,709 302
1989 1,698 316
1988 1,759 308
1987 1,796 302
1986 1,825 285
1985 1,851 290

Data sources: World Bank | Gender (1985–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/guinea-bissau/saint-kitts-and-nevis | CC BY

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 505 deaths per 100,000 live births in Guinea-Bissau, compared to 74 deaths in Saint Kitts and Nevis.

Under-five mortality rates

Guinea-Bissau
Saint Kitts and Nevis

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Guinea-Bissau Saint Kitts
2023 6.93% 1.63%
2022 7.16% 1.68%
2021 7.41% 1.72%
2020 7.66% 1.77%
2019 7.91% 1.82%
2018 8.21% 1.86%
2017 8.53% 1.9%
2016 8.84% 1.93%
2015 9.18% 1.94%
2014 9.53% 1.95%
2013 9.93% 1.93%
2012 10.4% 1.91%
2011 10.9% 1.89%
2010 11.4% 1.88%
2009 12% 1.87%
2008 12.6% 1.88%
2007 13.2% 1.89%
2006 13.9% 1.92%
2005 14.5% 1.97%
2004 15.1% 2.03%
2003 15.7% 2.11%
2002 16.3% 2.2%
2001 16.8% 2.29%
2000 17.4% 2.39%
1999 17.9% 2.48%
1998 18.4% 2.56%
1997 18.9% 2.64%
1996 19.4% 2.7%
1995 19.9% 2.76%
1994 20.4% 2.8%
1993 20.9% 2.85%
1992 21.3% 2.9%
1991 21.8% 2.96%
1990 22.2% 3.03%
1989 22.7% 3.12%
1988 23.1% 3.24%
1987 23.5% 3.39%
1986 24% 3.56%
1985 24.4% 3.76%
1984 - 4%
1983 - 4.26%
1982 - 4.53%
1981 - 4.81%
1980 - 5.06%
1979 - 5.29%
1978 - 5.48%
1977 - 5.64%
1976 - 5.78%
1975 - 5.91%
1974 - 6.03%
1973 - 6.16%

Data sources: World Bank | Health (1973–2023, retrieved 2026-04-06).

GeoRank.org/birth-rate/guinea-bissau/saint-kitts-and-nevis | CC BY

The chance that a newborn baby will die before reaching age five is 6.93% in Guinea-Bissau and 1.63% in Saint Kitts and Nevis. Above is a chart with historical data on under-five mortality rates.

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Data sources:

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

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