Skip to content

Fertility & birth rates in Sierra Leone and United Kingdom

Updated on by Georank team

Sierra Leone has an annual birth rate of 30.6 births per 1,000 people, compared to 10 for the United Kingdom. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 3.79 in Sierra Leone and 1.56 in the United Kingdom — 58.8% difference.

1960 vs 2023, the fertility rate has decreased by 38.6% in Sierra Leone and by 42% in the United Kingdom — in 1960, it was 6.18 and 2.69, respectively.

  • Sierra Leone is ranked 29/196 by birth rate compared to 146/196 for the United Kingdom.
  • The mean age for first-time mothers is 19.6 years in Sierra Leone, compared to 29 years in the United Kingdom.
  • The mean age at childbearing (for all the births, not just the first) is 28.5 in Sierra Leone — it's 31.2 in the United Kingdom.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 93.6 in Sierra Leone vs 8.36 in the United Kingdom.
  • In Sierra Leone, 25.4% of the population is composed of women of reproductive age (15-49), compared to 21.9% in the United Kingdom.

Fertility rate in Sierra Leone vs United Kingdom by year

Sierra Leone
United Kingdom
1x
Year Fertility rate
Sierra Leone United Kingdom
2023 3.79 1.56
2022 3.88 1.56
2021 3.98 1.58
2020 4.08 1.57
2019 4.19 1.63
2018 4.29 1.68
2017 4.39 1.74
2016 4.47 1.79
2015 4.55 1.8
2014 4.7 1.81
2013 4.87 1.83
2012 5.06 1.92
2011 5.21 1.91
2010 5.33 1.92
2009 5.45 1.89
2008 5.56 1.91
2007 5.64 1.86
2006 5.74 1.82
2005 5.81 1.76
2004 5.92 1.75
2003 6.09 1.7
2002 6.23 1.63
2001 6.31 1.63
2000 6.36 1.64
1999 6.42 1.68
1998 6.5 1.71
1997 6.53 1.72
1996 6.55 1.73
1995 6.56 1.71
1994 6.56 1.74
1993 6.57 1.76
1992 6.56 1.79
1991 6.55 1.82
1990 6.57 1.83
1989 6.57 1.79
1988 6.59 1.82
1987 6.61 1.81
1986 6.6 1.78
1985 6.59 1.79
1984 6.59 1.77
1983 6.57 1.77
1982 6.56 1.78
1981 6.55 1.82
1980 6.56 1.9
1979 6.58 1.86
1978 6.59 1.75
1977 6.57 1.69
1976 6.55 1.74
1975 6.55 1.81
1974 6.53 1.92
1973 6.47 2.04
1972 6.45 2.2
1971 6.43 2.41
1970 6.41 2.44
1969 6.39 2.51
1968 6.39 2.6
1967 6.38 2.68
1966 6.35 2.78
1965 6.31 2.86
1964 6.29 2.93
1963 6.26 2.88
1962 6.22 2.86
1961 6.21 2.78
1960 6.18 2.69

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

GeoRank.org/birth-rate/sierra-leone/united-kingdom | CC BY

According to the latest available data on birth rates, the fertility rate in Sierra Leone was 3.79 children per woman in 2023, compared to 1.56 in the United Kingdom in 2023. The replacement level is considered to be 2.1 children per woman.

Check Sierra Leone vs the United Kingdom population clock for a dynamic visualization of the changing population.

Natural population change by year

Sierra Leone
United Kingdom
1x
Year Natural population change
Sierra Leone United Kingdom
2023 188,788 34,589
2022 186,625 39,751
2021 183,326 30,612
2020 181,015 -4,272
2019 181,068 108,342
2018 178,772 119,321
2017 173,259 145,125
2016 168,784 177,139
2015 162,275 175,738
2014 160,137 206,784
2013 161,265 198,830
2012 160,915 248,473
2011 158,858 259,361
2010 155,338 251,066
2009 152,669 230,422
2008 149,855 216,325
2007 145,740 196,232
2006 144,127 176,455
2005 137,234 144,963
2004 132,661 131,974
2003 130,312 89,471
2002 126,429 65,308
2001 116,647 65,032
2000 110,754 70,671
1999 102,295 64,551
1998 103,906 87,730
1997 105,433 99,138
1996 104,140 98,884
1995 100,885 87,028
1994 101,486 127,304
1993 103,317 103,893
1992 103,251 149,709
1991 105,477 143,562
1990 100,778 154,569
1989 98,298 119,861
1988 96,344 136,628
1987 94,235 136,325
1986 90,902 90,690
1985 88,869 79,170
1984 87,072 84,633
1983 84,628 61,966
1982 82,457 56,314
1981 80,111 73,234
1980 77,932 95,734
1979 75,992 61,872
1978 74,130 16,859
1977 71,663 0
1976 69,506 -5,621
1975 67,560 33,735
1974 65,357 67,476
1973 62,443 112,389
1972 60,279 162,650
1971 58,484 257,123
1970 56,513 244,918
1969 54,768 260,577
1968 53,126 292,622
1967 51,734 346,145
1966 49,486 333,356
1965 47,223 364,132
1964 45,487 405,000
1963 43,569 337,995
1962 41,603 340,800
1961 40,022 311,519
1960 38,192 314,400

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

GeoRank.org/birth-rate/sierra-leone/united-kingdom | 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 +2.23% in Sierra Leone and +0.05% in the United Kingdom.

For the past 10 years, the annual natural population change has been +2.31% in Sierra Leone and +0.16% in the United Kingdom.

Birth rate in Sierra Leone vs United Kingdom by year

Sierra Leone
United Kingdom

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Sierra Leone United Kingdom
2023 30.6 10
2022 31.1 10.1
2021 31.6 10.2
2020 32.2 10.2
2019 32.8 10.6
2018 33.3 11
2017 33.8 11.4
2016 34.2 11.8
2015 34.7 11.9
2014 35.6 12
2013 36.6 12.1
2012 37.8 12.8
2011 38.5 12.8
2010 39.1 12.9
2009 39.9 12.7
2008 40.6 12.9
2007 41.1 12.6
2006 41.8 12.3
2005 42 12
2004 42.5 11.9
2003 43.5 11.7
2002 44.3 11.3
2001 44 11.3
2000 45 11.5
1999 46.1 11.9
1998 46.3 12.3
1997 46.3 12.5
1996 46.5 12.6
1995 46.8 12.6
1994 46.8 13
1993 46.9 13.2
1992 47 13.6
1991 47.5 13.8
1990 45.5 13.9
1989 46.3 13.6
1988 46.4 13.8
1987 46.6 13.7
1986 46.6 13.3
1985 46.7 13.3
1984 46.8 12.9
1983 46.7 12.8
1982 46.8 12.8
1981 46.8 13
1980 46.8 13.4
1979 47 13.1
1978 47.2 12.2
1977 47.1 11.7
1976 47.2 12
1975 47.3 12.4
1974 47.4 13.1
1973 47.2 13.9
1972 47.2 14.9
1971 47.3 16.1
1970 47.4 16.2
1969 47.5 16.6
1968 47.7 17.2
1967 47.9 17.5
1966 48 17.9
1965 48 18.3
1964 48.2 18.8
1963 48.2 18.5
1962 48.1 18.3
1961 48.1 17.9
1960 48 17.5

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

GeoRank.org/birth-rate/sierra-leone/united-kingdom | CC BY

The latest reported birth rate per 1,000 people in 2023 was 30.6 in Sierra Leone and 10 in the United Kingdom, compared with 48 and 17.5, respectively, in 1960.

Birth rate data compared

Sierra Leone United Kingdom
Fertility rate 3.79 1.56
Fertility rate rank 35/196 131/196
Birth rate 30.6 10
Birth rate rank 29/196 146/196
Population change due to births and deaths +188,788 +34,589
Natural population change rank 62/196 102/196
Natural population change rate +2.23% +0.05%
Population growth +2.15% +1.07%
Population growth rank 47/197 97/197
Age at first childbirth 19.6 years 29 years
Average age at childbearing 28.5 years 31.2 years
Annual births per 1,000 women ages 15-19 87.7 7.01
Annual births per 1,000 women ages 20-29 169.3 59.4
Annual births per 1,000 women ages 30+ 53.4 17.8
Female of reproductive age (15-49), share of population 25.4% 21.9%
Any modern method of contraceptive prevalence among married women ages 15-49 20.9% 71.1%
Share of births attended by skilled health staff 86.9% 99%
Maternal mortality per live birth 0.35% 0.008%
Neonatal mortality rate (before reaching 28 days of age) 2.93% 0.27%
Infant mortality rate (before reaching 1 year of age) 5.62% 0.4%
Mortality rate before reaching 5 years of age 9.43% 0.45%
Life expectancy 62.3 years 81.7 years

Children 0-14 years as share of population

Sierra Leone
Factual

UN forecast
United Kingdom
Factual

UN forecast
1x
Year Young
Sierra Leone United Kingdom
2100 19% 13.4%
2099 19% 13.4%
2098 19.1% 13.4%
2097 19.2% 13.5%
2096 19.3% 13.5%
2095 19.5% 13.6%
2094 19.6% 13.6%
2093 19.7% 13.7%
2092 19.8% 13.7%
2091 19.9% 13.8%
2090 20% 13.8%
2089 20.1% 13.8%
2088 20.3% 13.9%
2087 20.4% 13.9%
2086 20.5% 13.9%
2085 20.7% 13.9%
2084 20.8% 13.9%
2083 20.9% 13.9%
2082 21.1% 13.9%
2081 21.2% 13.9%
2080 21.4% 13.9%
2079 21.6% 13.8%
2078 21.7% 13.8%
2077 21.9% 13.8%
2076 22.1% 13.8%
2075 22.2% 13.8%
2074 22.4% 13.8%
2073 22.6% 13.8%
2072 22.8% 13.8%
2071 23% 13.8%
2070 23.2% 13.8%
2069 23.4% 13.8%
2068 23.6% 13.9%
2067 23.8% 13.9%
2066 24% 14%
2065 24.3% 14.1%
2064 24.5% 14.2%
2063 24.7% 14.3%
2062 25% 14.4%
2061 25.2% 14.5%
2060 25.5% 14.5%
2059 25.7% 14.6%
2058 26% 14.7%
2057 26.3% 14.8%
2056 26.6% 14.9%
2055 26.9% 15%
2054 27.1% 15%
2053 27.4% 15%
2052 27.7% 15.1%
2051 28.1% 15.1%
2050 28.4% 15.1%
2049 28.7% 15%
2048 29% 15%
2047 29.3% 15%
2046 29.7% 14.9%
2045 30% 14.9%
2044 30.3% 14.9%
2043 30.7% 14.8%
2042 31.1% 14.8%
2041 31.4% 14.8%
2040 31.8% 14.8%
2039 32.2% 14.8%
2038 32.6% 14.9%
2037 33% 14.9%
2036 33.4% 14.9%
2035 33.8% 15%
2034 34.2% 15.1%
2033 34.6% 15.3%
2032 35% 15.4%
2031 35.4% 15.6%
2030 35.7% 15.9%
2029 36.1% 16.1%
2028 36.5% 16.3%
2027 37% 16.6%
2026 37.4% 16.8%
2025 37.9% 17.1%
2024 38.1% 17.2%
2023 38.5% 17.4%
2022 39% 17.6%
2021 39.4% 17.8%
2020 39.8% 18%
2019 40.2% 18%
2018 40.6% 18.1%
2017 41% 18%
2016 41.4% 18%
2015 41.8% 17.9%
2014 42.2% 17.8%
2013 42.5% 17.8%
2012 42.8% 17.8%
2011 43% 17.7%
2010 43.2% 17.8%
2009 43.4% 17.8%
2008 43.5% 17.8%
2007 43.6% 17.9%
2006 43.7% 18%
2005 43.8% 18.2%
2004 43.9% 18.3%
2003 43.9% 18.4%
2002 43.9% 18.5%
2001 43.9% 18.7%
2000 43.8% 18.9%
1999 43.7% 19.2%
1998 43.6% 19.3%
1997 43.5% 19.3%
1996 43.5% 19.4%
1995 43.4% 19.5%
1994 43.3% 19.6%
1993 43.2% 19.5%
1992 43.1% 19.4%
1991 43% 19.3%
1990 42.9% 19.1%
1989 42.9% 19.1%
1988 42.8% 18.9%
1987 42.7% 18.9%
1986 42.6% 19.1%
1985 42.5% 19.3%
1984 42.3% 19.5%
1983 42.2% 19.8%
1982 42.1% 20.2%
1981 42% 20.6%
1980 41.9% 21%
1979 41.8% 21.4%
1978 41.7% 21.9%
1977 41.6% 22.4%
1976 41.4% 22.9%
1975 41.3% 23.3%
1974 41.1% 23.6%
1973 40.9% 23.9%
1972 40.7% 24%
1971 40.6% 24.1%
1970 40.3% 24.1%
1969 40.1% 24%
1968 39.9% 23.9%
1967 39.6% 23.7%
1966 39.4% 23.5%
1965 39.1% 23.4%
1964 38.8% 23.3%
1963 38.5% 23.2%
1962 38.3% 23.2%
1961 38.3% 23.3%
1960 38.2% 23.3%

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/sierra-leone/united-kingdom | CC BY

Children aged 0-14 make up 38.1% of the population in Sierra Leone and 17.2% in the United Kingdom in 2024, compared to 42.9% and 19.1% respectively in 1990.

Demographics of Sierra Leone and the United Kingdom compared.

Fertility rates around the globe

1x

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

GeoRank.org/birth-rate/sierra-leone/united-kingdom | CC BY

Maternal mortality chart: Sierra Leone vs United Kingdom

Sierra Leone
United Kingdom
1x
Year Maternal mortality per 100K births
Sierra Leone United Kingdom
2023 354 8
2022 370 15
2021 403 13
2020 422 14
2019 464 9
2018 491 9
2017 578 9
2016 633 9
2015 730 9
2014 821 9
2013 842 9
2012 915 9
2011 967 10
2010 1,018 10
2009 1,054 11
2008 1,093 11
2007 1,132 11
2006 1,168 12
2005 1,294 12
2004 1,366 13
2003 1,433 14
2002 1,492 13
2001 1,518 13
2000 1,603 12
1999 1,731 11
1998 1,753 10
1997 1,721 9
1996 1,726 8
1995 1,777 9
1994 1,755 9
1993 1,696 8
1992 1,681 7
1991 1,699 7
1990 1,572 6
1989 1,575 5
1988 1,549 4
1987 1,533 3
1986 1,530 2
1985 1,506 2

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

GeoRank.org/birth-rate/sierra-leone/united-kingdom | CC BY

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 354 deaths per 100,000 live births in Sierra Leone, compared to 8 deaths in the United Kingdom.

Under-five mortality rates

Sierra Leone
United Kingdom

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Sierra Leone United Kingdom
2023 9.43% 0.45%
2022 9.77% 0.45%
2021 10.1% 0.44%
2020 10.5% 0.44%
2019 10.9% 0.44%
2018 11.3% 0.44%
2017 11.8% 0.44%
2016 12.3% 0.44%
2015 13.8% 0.45%
2014 13.7% 0.45%
2013 13.9% 0.46%
2012 14.5% 0.48%
2011 15.2% 0.5%
2010 15.9% 0.52%
2009 16.6% 0.54%
2008 17.3% 0.56%
2007 18.1% 0.58%
2006 18.8% 0.59%
2005 19.4% 0.6%
2004 20.1% 0.61%
2003 20.7% 0.63%
2002 21.3% 0.63%
2001 21.8% 0.64%
2000 22.4% 0.65%
1999 22.9% 0.67%
1998 23.4% 0.68%
1997 23.9% 0.69%
1996 24.3% 0.7%
1995 24.7% 0.72%
1994 25% 0.74%
1993 25.3% 0.77%
1992 25.5% 0.82%
1991 25.7% 0.87%
1990 25.9% 0.93%
1989 26.2% 0.99%
1988 26.4% 1.04%
1987 26.6% 1.08%
1986 26.9% 1.11%
1985 27.2% 1.14%
1984 27.5% 1.17%
1983 27.8% 1.22%
1982 28.1% 1.27%
1981 28.5% 1.34%
1980 28.9% 1.41%
1979 29.2% 1.49%
1978 29.6% 1.57%
1977 30% 1.64%
1976 30.5% 1.72%
1975 30.9% 1.8%
1974 31.4% 1.87%
1973 31.9% 1.94%
1972 32.3% 2%
1971 32.9% 2.06%
1970 33.4% 2.1%
1969 33.9% 2.14%
1968 34.5% 2.18%
1967 35% 2.22%
1966 35.6% 2.28%
1965 36.2% 2.34%
1964 36.8% 2.42%
1963 37.4% 2.49%
1962 38% 2.56%
1961 38.5% 2.61%
1960 39.1% 2.66%

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

GeoRank.org/birth-rate/sierra-leone/united-kingdom | CC BY

The chance that a newborn baby will die before reaching age five is 9.43% in Sierra Leone and 0.45% in the United Kingdom. Above is a chart with historical data on under-five mortality rates.

Compare countries by 7 more topics

Help us show the world through your eyes

Share a photo of your city and help others discover what it looks like to live there. Your contribution makes our data come alive.

Data sources:

  1. World Bank | Health (1960–2024, retrieved 2026-04-06)
  2. United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10)
  3. United Nations Economic Commission for Europe (UNECE) (2018, retrieved 2026-03-10)
  4. Central Intelligence Agency (CIA) (2025, retrieved 2026-02-20)

Creative Commons Attribution (CC BY) — you’re free to copy, share, remix, adapt, and use even commercially as long as you give appropriate credit and clearly indicate if you made changes. Other sources may be subject to different license terms.