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Fertility & birth rates in Cambodia and Sierra Leone

Updated on by Georank team

Cambodia has an annual birth rate of 20.8 births per 1,000 people, compared to 30.6 for Sierra Leone. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 2.58 in Cambodia and 3.79 in Sierra Leone — 47% difference.

1960 vs 2023, the fertility rate has decreased by 59.1% in Cambodia and by 38.6% in Sierra Leone — in 1960, it was 6.31 and 6.18, respectively.

  • Cambodia is ranked 71/196 by birth rate compared to 29/196 for Sierra Leone.
  • The mean age for first-time mothers is 23.3 years in Cambodia, compared to 19.6 years in Sierra Leone.
  • The mean age at childbearing (for all the births, not just the first) is 27.8 in Cambodia — it's 28.5 in Sierra Leone.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 46.9 in Cambodia vs 93.6 in Sierra Leone.
  • In Cambodia, 26.4% of the population is composed of women of reproductive age (15-49), compared to 25.4% in Sierra Leone.

Fertility rate in Cambodia vs Sierra Leone by year

Cambodia
Sierra Leone
1x
Year Fertility rate
Cambodia Sierra Leone
2023 2.58 3.79
2022 2.62 3.88
2021 2.66 3.98
2020 2.7 4.08
2019 2.73 4.19
2018 2.72 4.29
2017 2.72 4.39
2016 2.73 4.47
2015 2.73 4.55
2014 2.73 4.7
2013 2.74 4.87
2012 2.75 5.06
2011 2.78 5.21
2010 2.86 5.33
2009 2.97 5.45
2008 3.05 5.56
2007 3.13 5.64
2006 3.18 5.74
2005 3.24 5.81
2004 3.31 5.92
2003 3.43 6.09
2002 3.57 6.23
2001 3.69 6.31
2000 3.79 6.36
1999 3.93 6.42
1998 4.13 6.5
1997 4.39 6.53
1996 4.87 6.55
1995 5.08 6.56
1994 5.28 6.56
1993 5.43 6.57
1992 5.49 6.56
1991 5.59 6.55
1990 5.64 6.57
1989 5.68 6.57
1988 5.94 6.59
1987 6.1 6.61
1986 6.23 6.6
1985 6.31 6.59
1984 6.34 6.59
1983 6.3 6.57
1982 6.19 6.56
1981 6.04 6.55
1980 5.77 6.56
1979 4.56 6.58
1978 3.34 6.59
1977 2.72 6.57
1976 3.41 6.55
1975 4.1 6.55
1974 4.8 6.53
1973 5.56 6.47
1972 5.94 6.45
1971 6.01 6.43
1970 6.07 6.41
1969 6.12 6.39
1968 6.17 6.39
1967 6.2 6.38
1966 6.24 6.35
1965 6.27 6.31
1964 6.29 6.29
1963 6.29 6.26
1962 6.3 6.22
1961 6.3 6.21
1960 6.31 6.18

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

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

According to the latest available data on birth rates, the fertility rate in Cambodia was 2.58 children per woman in 2023, compared to 3.79 in Sierra Leone in 2023. The replacement level is considered to be 2.1 children per woman.

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

Natural population change by year

Cambodia
Sierra Leone
1x
Year Natural population change
Cambodia Sierra Leone
2023 250,242 188,788
2022 257,269 186,625
2021 255,939 183,326
2020 268,745 181,015
2019 276,870 181,068
2018 280,671 178,772
2017 282,698 173,259
2016 284,130 168,784
2015 284,390 162,275
2014 283,193 160,137
2013 281,013 161,265
2012 276,649 160,915
2011 272,161 158,858
2010 272,266 155,338
2009 274,700 152,669
2008 272,132 149,855
2007 270,745 145,740
2006 263,697 144,127
2005 256,756 137,234
2004 251,650 132,661
2003 251,884 130,312
2002 251,860 126,429
2001 250,726 116,647
2000 246,330 110,754
1999 245,425 102,295
1998 251,076 103,906
1997 252,351 105,433
1996 274,147 104,140
1995 280,168 100,885
1994 286,728 101,486
1993 282,221 103,317
1992 260,673 103,251
1991 257,709 105,477
1990 249,776 100,778
1989 239,211 98,298
1988 243,203 96,344
1987 235,064 94,235
1986 221,684 90,902
1985 214,101 88,869
1984 207,700 87,072
1983 192,849 84,628
1982 180,300 82,457
1981 166,578 80,111
1980 159,157 77,932
1979 78,143 75,992
1978 -357,478 74,130
1977 -416,117 71,663
1976 -408,505 69,506
1975 -383,806 67,560
1974 73,001 65,357
1973 101,304 62,443
1972 113,190 60,279
1971 113,813 58,484
1970 122,832 56,513
1969 156,777 54,768
1968 153,444 53,126
1967 150,046 51,734
1966 147,583 49,486
1965 144,460 47,223
1964 141,216 45,487
1963 137,562 43,569
1962 132,861 41,603
1961 128,259 40,022
1960 124,237 38,192

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

GeoRank.org/birth-rate/cambodia/sierra-leone | 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 +1.44% in Cambodia and +2.23% in Sierra Leone.

For the past 10 years, the annual natural population change has been +1.67% in Cambodia and +2.31% in Sierra Leone.

Birth rate in Cambodia vs Sierra Leone by year

Cambodia
Sierra Leone

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Cambodia Sierra Leone
2023 20.8 30.6
2022 21.3 31.1
2021 21.9 31.6
2020 22.4 32.2
2019 23 32.8
2018 23.4 33.3
2017 23.7 33.8
2016 24 34.2
2015 24.2 34.7
2014 24.4 35.6
2013 24.6 36.6
2012 24.6 37.8
2011 24.6 38.5
2010 25 39.1
2009 25.6 39.9
2008 25.9 40.6
2007 26.2 41.1
2006 26.1 41.8
2005 26.1 42
2004 26.3 42.5
2003 26.9 43.5
2002 27.5 44.3
2001 28.1 44
2000 28.5 45
1999 29.1 46.1
1998 30.4 46.3
1997 31.7 46.3
1996 35.8 46.5
1995 38.8 46.8
1994 42.3 46.8
1993 44.4 46.9
1992 44 47
1991 45.8 47.5
1990 46.4 45.5
1989 46.7 46.3
1988 48.9 46.4
1987 49.5 46.6
1986 50.2 46.6
1985 50.9 46.7
1984 51.4 46.8
1983 50.3 46.7
1982 49.6 46.8
1981 48.2 46.8
1980 47.2 46.8
1979 34.7 47
1978 25.3 47.2
1977 19.6 47.1
1976 24 47.2
1975 28.3 47.3
1974 32.5 47.4
1973 37.4 47.2
1972 39.7 47.2
1971 40.3 47.3
1970 42 47.4
1969 41.7 47.5
1968 41.9 47.7
1967 42.2 47.9
1966 42.5 48
1965 42.9 48
1964 43.2 48.2
1963 43.4 48.2
1962 43.6 48.1
1961 43.7 48.1
1960 43.9 48

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

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

The latest reported birth rate per 1,000 people in 2023 was 20.8 in Cambodia and 30.6 in Sierra Leone, compared with 43.9 and 48, respectively, in 1960.

Birth rate data compared

Cambodia Sierra Leone
Fertility rate 2.58 3.79
Fertility rate rank 73/196 35/196
Birth rate 20.8 30.6
Birth rate rank 71/196 29/196
Population change due to births and deaths +250,242 +188,788
Natural population change rank 55/196 62/196
Natural population change rate +1.44% +2.23%
Population growth +1.23% +2.15%
Population growth rank 88/197 47/197
Age at first childbirth 23.3 years 19.6 years
Average age at childbearing 27.8 years 28.5 years
Annual births per 1,000 women ages 15-19 47.8 87.7
Annual births per 1,000 women ages 20-29 140.1 169.3
Annual births per 1,000 women ages 30+ 27.3 53.4
Female of reproductive age (15-49), share of population 26.4% 25.4%
Any modern method of contraceptive prevalence among married women ages 15-49 44.7% 20.9%
Share of births attended by skilled health staff 98.7% 86.9%
Maternal mortality per live birth 0.14% 0.35%
Neonatal mortality rate (before reaching 28 days of age) 1.18% 2.93%
Infant mortality rate (before reaching 1 year of age) 2.03% 5.62%
Mortality rate before reaching 5 years of age 2.29% 9.43%
Life expectancy 71.1 years 62.3 years

Children 0-14 years as share of population

Cambodia
Factual

UN forecast
Sierra Leone
Factual

UN forecast
1x
Year Young
Cambodia Sierra Leone
2100 16.3% 19%
2099 16.3% 19%
2098 16.4% 19.1%
2097 16.5% 19.2%
2096 16.6% 19.3%
2095 16.7% 19.5%
2094 16.7% 19.6%
2093 16.8% 19.7%
2092 16.9% 19.8%
2091 17% 19.9%
2090 17.1% 20%
2089 17.2% 20.1%
2088 17.3% 20.3%
2087 17.4% 20.4%
2086 17.5% 20.5%
2085 17.6% 20.7%
2084 17.7% 20.8%
2083 17.8% 20.9%
2082 18% 21.1%
2081 18.1% 21.2%
2080 18.2% 21.4%
2079 18.3% 21.6%
2078 18.4% 21.7%
2077 18.5% 21.9%
2076 18.6% 22.1%
2075 18.7% 22.2%
2074 18.8% 22.4%
2073 18.9% 22.6%
2072 19% 22.8%
2071 19.1% 23%
2070 19.2% 23.2%
2069 19.3% 23.4%
2068 19.5% 23.6%
2067 19.6% 23.8%
2066 19.8% 24%
2065 19.9% 24.3%
2064 20.1% 24.5%
2063 20.3% 24.7%
2062 20.5% 25%
2061 20.7% 25.2%
2060 20.9% 25.5%
2059 21.1% 25.7%
2058 21.3% 26%
2057 21.5% 26.3%
2056 21.7% 26.6%
2055 21.9% 26.9%
2054 22.1% 27.1%
2053 22.2% 27.4%
2052 22.4% 27.7%
2051 22.6% 28.1%
2050 22.8% 28.4%
2049 23% 28.7%
2048 23.1% 29%
2047 23.3% 29.3%
2046 23.5% 29.7%
2045 23.7% 30%
2044 23.8% 30.3%
2043 24% 30.7%
2042 24.2% 31.1%
2041 24.5% 31.4%
2040 24.7% 31.8%
2039 24.9% 32.2%
2038 25.2% 32.6%
2037 25.5% 33%
2036 25.9% 33.4%
2035 26.3% 33.8%
2034 26.7% 34.2%
2033 27.1% 34.6%
2032 27.4% 35%
2031 27.8% 35.4%
2030 28.2% 35.7%
2029 28.5% 36.1%
2028 28.8% 36.5%
2027 29.1% 37%
2026 29.4% 37.4%
2025 29.6% 37.9%
2024 29.8% 38.1%
2023 30.1% 38.5%
2022 30.5% 39%
2021 30.8% 39.4%
2020 31.1% 39.8%
2019 31.3% 40.2%
2018 31.5% 40.6%
2017 31.7% 41%
2016 31.8% 41.4%
2015 31.9% 41.8%
2014 32% 42.2%
2013 32.2% 42.5%
2012 32.4% 42.8%
2011 32.8% 43%
2010 33.3% 43.2%
2009 33.9% 43.4%
2008 34.7% 43.5%
2007 35.6% 43.6%
2006 36.6% 43.7%
2005 37.6% 43.8%
2004 38.5% 43.9%
2003 39.5% 43.9%
2002 40.5% 43.9%
2001 41.5% 43.9%
2000 42.5% 43.8%
1999 43.6% 43.7%
1998 44.5% 43.6%
1997 45.4% 43.5%
1996 46.2% 43.5%
1995 46.4% 43.4%
1994 46% 43.3%
1993 45.3% 43.2%
1992 45% 43.1%
1991 44.5% 43%
1990 43.7% 42.9%
1989 43.2% 42.9%
1988 42.8% 42.8%
1987 42.5% 42.7%
1986 42.5% 42.6%
1985 42.5% 42.5%
1984 42.4% 42.3%
1983 42.5% 42.2%
1982 42.6% 42.1%
1981 42.7% 42%
1980 42.5% 41.9%
1979 43% 41.8%
1978 43.8% 41.7%
1977 44.2% 41.6%
1976 44.7% 41.4%
1975 44.8% 41.3%
1974 44.9% 41.1%
1973 45.2% 40.9%
1972 45.2% 40.7%
1971 45% 40.6%
1970 44.4% 40.3%
1969 43.9% 40.1%
1968 44% 39.9%
1967 44% 39.6%
1966 44.1% 39.4%
1965 44.1% 39.1%
1964 44.1% 38.8%
1963 44% 38.5%
1962 43.9% 38.3%
1961 43.8% 38.3%
1960 43.7% 38.2%

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/cambodia/sierra-leone | CC BY

Children aged 0-14 make up 29.8% of the population in Cambodia and 38.1% in Sierra Leone in 2024, compared to 43.7% and 42.9% respectively in 1990.

Demographics of Cambodia and Sierra Leone compared.

Fertility rates around the globe

1x

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

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

Maternal mortality chart: Cambodia vs Sierra Leone

Cambodia
Sierra Leone
1x
Year Maternal mortality per 100K births
Cambodia Sierra Leone
2023 137 354
2022 159 370
2021 189 403
2020 164 422
2019 149 464
2018 151 491
2017 155 578
2016 159 633
2015 166 730
2014 172 821
2013 182 842
2012 197 915
2011 214 967
2010 234 1,018
2009 251 1,054
2008 272 1,093
2007 290 1,132
2006 303 1,168
2005 323 1,294
2004 344 1,366
2003 366 1,433
2002 399 1,492
2001 437 1,518
2000 476 1,603
1999 517 1,731
1998 557 1,753
1997 580 1,721
1996 622 1,726
1995 642 1,777
1994 665 1,755
1993 680 1,696
1992 667 1,681
1991 681 1,699
1990 681 1,572
1989 702 1,575
1988 742 1,549
1987 772 1,533
1986 824 1,530
1985 874 1,506

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

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

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 137 deaths per 100,000 live births in Cambodia, compared to 354 deaths in Sierra Leone.

Under-five mortality rates

Cambodia
Sierra Leone

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Cambodia Sierra Leone
2023 2.29% 9.43%
2022 2.38% 9.77%
2021 2.47% 10.1%
2020 2.56% 10.5%
2019 2.67% 10.9%
2018 2.77% 11.3%
2017 2.89% 11.8%
2016 3.02% 12.3%
2015 3.16% 13.8%
2014 3.33% 13.7%
2013 3.53% 13.9%
2012 3.77% 14.5%
2011 4.05% 15.2%
2010 4.37% 15.9%
2009 4.74% 16.6%
2008 5.13% 17.3%
2007 5.54% 18.1%
2006 5.98% 18.8%
2005 6.48% 19.4%
2004 7.08% 20.1%
2003 7.8% 20.7%
2002 8.67% 21.3%
2001 9.65% 21.8%
2000 10.6% 22.4%
1999 11.3% 22.9%
1998 11.7% 23.4%
1997 11.9% 23.9%
1996 12% 24.3%
1995 12% 24.7%
1994 11.9% 25%
1993 11.7% 25.3%
1992 11.7% 25.5%
1991 11.6% 25.7%
1990 11.6% 25.9%
1989 11.6% 26.2%
1988 11.6% 26.4%
1987 11.7% 26.6%
1986 11.8% 26.9%
1985 12% 27.2%
1984 12.4% 27.5%
1983 13% 27.8%
1982 14.1% 28.1%
1981 15.9% 28.5%
1980 18.1% 28.9%
1979 20.7% 29.2%
1978 48.5% 29.6%
1977 52.5% 30%
1976 54.1% 30.5%
1975 52.5% 30.9%
1974 - 31.4%
1973 - 31.9%
1972 - 32.3%
1971 - 32.9%
1970 - 33.4%
1969 - 33.9%
1968 - 34.5%
1967 - 35%
1966 - 35.6%
1965 - 36.2%
1964 - 36.8%
1963 - 37.4%
1962 - 38%
1961 - 38.5%
1960 - 39.1%

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

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

The chance that a newborn baby will die before reaching age five is 2.29% in Cambodia and 9.43% in Sierra Leone. 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)
  3. Central Intelligence Agency (CIA) (2025, retrieved 2026-02-20)

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