Skip to content

Fertility & birth rates in Belgium and Nauru

Updated on by Georank team

Belgium has an annual birth rate of 9.4 births per 1,000 people, compared to 25.5 for Nauru. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 1.47 in Belgium and 3.33 in Nauru — 126.6% difference.

1960 vs 2023, the fertility rate has decreased by 42.1% in Belgium and by 37.6% in Nauru — in 1960, it was 2.54 and 5.34, respectively.

  • Belgium is ranked 155/196 by birth rate compared to 52/196 for Nauru.
  • The mean age for first-time mothers is 29.5 years in Belgium, compared to 22.1 years in Nauru.
  • The mean age at childbearing (for all the births, not just the first) is 31.3 in Belgium — it's 27.1 in Nauru.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 3.67 in Belgium vs 76.2 in Nauru.
  • In Belgium, 21.5% of the population is composed of women of reproductive age (15-49), compared to 24.6% in Nauru.

Fertility rate in Belgium vs Nauru by year

Belgium
Nauru
1x
Year Fertility rate
Belgium Nauru
2023 1.47 3.33
2022 1.53 3.38
2021 1.6 3.43
2020 1.55 3.47
2019 1.6 3.53
2018 1.62 3.68
2017 1.65 3.88
2016 1.68 4.03
2015 1.7 4.08
2014 1.74 4.09
2013 1.76 4.1
2012 1.8 4.12
2011 1.81 4.12
2010 1.86 4.02
2009 1.84 3.85
2008 1.85 3.67
2007 1.82 3.5
2006 1.8 3.4
2005 1.76 3.38
2004 1.72 3.38
2003 1.67 3.39
2002 1.65 3.4
2001 1.67 3.46
2000 1.67 3.54
1999 1.62 3.64
1998 1.6 3.68
1997 1.6 3.74
1996 1.59 3.78
1995 1.56 3.81
1994 1.56 3.84
1993 1.61 3.89
1992 1.65 3.95
1991 1.66 3.99
1990 1.62 4.02
1989 1.58 4.07
1988 1.57 4.11
1987 1.54 4.14
1986 1.54 4.15
1985 1.51 4.14
1984 1.54 4.11
1983 1.57 4.06
1982 1.61 3.99
1981 1.66 3.94
1980 1.68 3.88
1979 1.69 3.85
1978 1.69 3.84
1977 1.71 3.86
1976 1.73 3.9
1975 1.74 3.97
1974 1.83 4.07
1973 1.95 4.19
1972 2.09 4.36
1971 2.21 4.54
1970 2.25 4.74
1969 2.27 4.94
1968 2.31 5.14
1967 2.41 5.29
1966 2.52 5.41
1965 2.61 5.48
1964 2.71 5.47
1963 2.68 5.44
1962 2.59 5.42
1961 2.63 5.38
1960 2.54 5.34

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

GeoRank.org/birth-rate/belgium/nauru | CC BY

According to the latest available data on birth rates, the fertility rate in Belgium was 1.47 children per woman in 2023, compared to 3.33 in Nauru in 2023. The replacement level is considered to be 2.1 children per woman.

Check Belgium vs Nauru population clock for a dynamic visualization of the changing population.

Natural population change by year

Belgium
Nauru
1x
Year Natural population change
Belgium Nauru
2023 0 213
2022 -2,336 226
2021 5,793 236
2020 -12,692 246
2019 8,042 255
2018 7,999 265
2017 10,238 279
2016 14,731 289
2015 11,274 291
2014 21,297 290
2013 16,739 291
2012 18,882 292
2011 25,388 291
2010 23,970 281
2009 23,752 261
2008 22,491 240
2007 23,376 222
2006 21,096 209
2005 15,718 204
2004 16,673 202
2003 7,263 201
2002 7,233 200
2001 11,315 203
2000 12,302 207
1999 9,203 212
1998 9,183 214
1997 12,218 218
1996 12,188 221
1995 11,150 225
1994 12,139 229
1993 14,118 235
1992 20,090 237
1991 22,010 225
1990 19,935 214
1989 13,912 204
1988 14,853 195
1987 11,844 186
1986 5,917 178
1985 2,958 171
1984 4,927 166
1983 2,956 163
1982 7,885 162
1981 11,831 157
1980 10,845 145
1979 11,818 130
1978 7,872 111
1977 8,847 89
1976 1,964 79
1975 0 70
1974 7,818 63
1973 11,690 57
1972 18,451 53
1971 21,281 50
1970 23,173 49
1969 21,221 71
1968 20,199 116
1967 31,618 117
1966 36,206 123
1965 39,748 113
1964 51,580 100
1963 41,804 88
1962 42,414 75
1961 52,349 70
1960 40,275 72

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

GeoRank.org/birth-rate/belgium/nauru | 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 +0% in Belgium and +1.8% in Nauru.

For the past 10 years, the annual natural population change has been +0.06% in Belgium and +2.28% in Nauru.

Birth rate in Belgium vs Nauru by year

Belgium
Nauru

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Belgium Nauru
2023 9.4 25.5
2022 9.8 26.6
2021 10.2 27.8
2020 9.9 28.7
2019 10.2 29.6
2018 10.4 30.7
2017 10.5 32.2
2016 10.8 33.6
2015 10.8 34.2
2014 11.2 34.7
2013 11.3 35.3
2012 11.5 36.1
2011 11.7 36.8
2010 11.9 36.1
2009 11.8 34.3
2008 11.9 32.3
2007 11.7 30.4
2006 11.6 29.1
2005 11.4 28.5
2004 11.3 28.1
2003 11 27.9
2002 10.9 27.8
2001 11.2 27.9
2000 11.4 28.2
1999 11.2 28.6
1998 11.2 28.7
1997 11.4 29
1996 11.5 29.4
1995 11.4 29.8
1994 11.5 30.3
1993 12 31.1
1992 12.4 31.8
1991 12.6 31.7
1990 12.4 31.7
1989 12.2 31.9
1988 12.1 32
1987 11.9 32
1986 11.9 31.9
1985 11.6 31.9
1984 11.7 31.8
1983 11.9 31.8
1982 12.2 31.8
1981 12.6 31.2
1980 12.6 29.7
1979 12.6 27.6
1978 12.5 25
1977 12.4 21.8
1976 12.3 20.1
1975 12.2 18.7
1974 12.7 17.4
1973 13.3 16.3
1972 14 15.6
1971 14.6 15.2
1970 14.7 15.1
1969 14.7 18.8
1968 14.8 27.2
1967 15.3 28.3
1966 15.9 29.9
1965 16.4 29.1
1964 17.2 28.2
1963 17.1 27
1962 16.8 25.6
1961 17.3 25.6
1960 16.8 26.9

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

GeoRank.org/birth-rate/belgium/nauru | CC BY

The latest reported birth rate per 1,000 people in 2023 was 9.4 in Belgium and 25.5 in Nauru, compared with 16.8 and 26.9, respectively, in 1960.

Birth rate data compared

Belgium Nauru
Fertility rate 1.47 3.33
Fertility rate rank 151/196 47/196
Birth rate 9.4 25.5
Birth rate rank 155/196 52/196
Population change due to births and deaths +0 +213
Natural population change rank 157/196 150/196
Natural population change rate +0% +1.8%
Population growth +0.67% +0.61%
Population growth rank 119/197 126/197
Age at first childbirth 29.5 years 22.1 years
Average age at childbearing 31.3 years 27.1 years
Annual births per 1,000 women ages 15-19 3.31 77.7
Annual births per 1,000 women ages 20-29 55.1 176.3
Annual births per 1,000 women ages 30+ 15.4 37.1
Female of reproductive age (15-49), share of population 21.5% 24.6%
Any modern method of contraceptive prevalence among married women ages 15-49 65.4% 25.1%
Share of births attended by skilled health staff 99.3% 97.4%
Maternal mortality per live birth 0.004% 0.27%
Neonatal mortality rate (before reaching 28 days of age) 0.21% 0.48%
Infant mortality rate (before reaching 1 year of age) 0.3% 0.83%
Mortality rate before reaching 5 years of age 0.36% 0.89%
Life expectancy 82.6 years 62.6 years

Children 0-14 years as share of population

Belgium
Factual

UN forecast
Nauru
Factual

UN forecast
1x
Year Young
Belgium Nauru
2100 12.8% 20.7%
2099 12.8% 20.8%
2098 12.9% 21%
2097 12.9% 21.1%
2096 12.9% 21.2%
2095 13% 21.3%
2094 13% 21.4%
2093 13.1% 21.6%
2092 13.1% 21.7%
2091 13.2% 21.9%
2090 13.2% 22%
2089 13.2% 22.2%
2088 13.3% 22.4%
2087 13.3% 22.5%
2086 13.3% 22.7%
2085 13.3% 22.9%
2084 13.3% 23.1%
2083 13.3% 23.3%
2082 13.3% 23.4%
2081 13.3% 23.6%
2080 13.2% 23.8%
2079 13.2% 23.9%
2078 13.2% 24.1%
2077 13.1% 24.2%
2076 13.1% 24.3%
2075 13% 24.5%
2074 13% 24.6%
2073 12.9% 24.7%
2072 12.9% 24.9%
2071 12.9% 25%
2070 12.9% 25.1%
2069 12.9% 25.3%
2068 12.9% 25.4%
2067 13% 25.6%
2066 13% 25.8%
2065 13.1% 26%
2064 13.1% 26.2%
2063 13.2% 26.4%
2062 13.3% 26.7%
2061 13.4% 26.9%
2060 13.5% 27.2%
2059 13.6% 27.5%
2058 13.7% 27.9%
2057 13.7% 28.2%
2056 13.8% 28.5%
2055 13.9% 28.8%
2054 13.9% 29.1%
2053 13.9% 29.4%
2052 14% 29.7%
2051 14% 29.9%
2050 13.9% 30.2%
2049 13.9% 30.4%
2048 13.8% 30.6%
2047 13.8% 30.7%
2046 13.7% 30.8%
2045 13.7% 30.9%
2044 13.6% 30.9%
2043 13.5% 31%
2042 13.4% 31%
2041 13.4% 31%
2040 13.3% 31%
2039 13.3% 31.1%
2038 13.3% 31.2%
2037 13.3% 31.4%
2036 13.5% 31.8%
2035 13.6% 32%
2034 13.7% 32.3%
2033 13.9% 32.5%
2032 14.1% 32.9%
2031 14.3% 33.4%
2030 14.5% 34%
2029 14.7% 34.7%
2028 15% 35.3%
2027 15.3% 36.1%
2026 15.6% 36.8%
2025 15.9% 37.5%
2024 16% 37.8%
2023 16.3% 38.2%
2022 16.5% 38.3%
2021 16.7% 38.3%
2020 16.8% 38%
2019 16.9% 37.6%
2018 16.9% 37.6%
2017 17% 38%
2016 17% 38.2%
2015 17% 38.2%
2014 17% 38.2%
2013 17% 38%
2012 17% 37.7%
2011 17% 37.1%
2010 16.9% 36.3%
2009 16.9% 35.8%
2008 16.9% 35.6%
2007 16.9% 35.7%
2006 17% 36.1%
2005 17.1% 36.6%
2004 17.2% 37.1%
2003 17.3% 37.7%
2002 17.5% 38.2%
2001 17.5% 38.5%
2000 17.6% 38.9%
1999 17.7% 39.4%
1998 17.7% 39.9%
1997 17.8% 40.5%
1996 17.9% 41.1%
1995 18% 41.7%
1994 18.1% 42.1%
1993 18.1% 42.5%
1992 18.2% 42.5%
1991 18.2% 42.1%
1990 18.1% 41.2%
1989 18.1% 40.2%
1988 18.2% 39.2%
1987 18.3% 38.3%
1986 18.6% 37.5%
1985 18.8% 36.5%
1984 19.1% 35.7%
1983 19.4% 34.6%
1982 19.6% 33.2%
1981 19.9% 31.9%
1980 20.3% 30.9%
1979 20.6% 30.6%
1978 21% 30.9%
1977 21.4% 31.9%
1976 21.8% 33.4%
1975 22.2% 34.9%
1974 22.6% 36.4%
1973 23% 38.1%
1972 23.3% 39.7%
1971 23.5% 41.3%
1970 23.6% 42.9%
1969 23.8% 43.4%
1968 23.9% 41.3%
1967 23.9% 39.5%
1966 24% 39.4%
1965 24% 38.6%
1964 23.9% 37.5%
1963 23.9% 36.5%
1962 23.8% 35.7%
1961 23.8% 35.2%
1960 23.7% 34.8%

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/belgium/nauru | CC BY

Children aged 0-14 make up 16% of the population in Belgium and 37.8% in Nauru in 2024, compared to 18.1% and 41.2% respectively in 1990.

Demographics of Belgium and Nauru compared.

Fertility rates around the globe

1x

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

GeoRank.org/birth-rate/belgium/nauru | CC BY

Maternal mortality chart: Belgium vs Nauru

Belgium
Nauru
1x
Year Maternal mortality per 100K births
Belgium Nauru
2023 4 273
2022 11 317
2021 7 266
2020 4 309
2019 4 267
2018 5 269
2017 5 259
2016 5 248
2015 5 253
2014 5 240
2013 6 247
2012 5 255
2011 6 260
2010 6 297
2009 6 300
2008 6 302
2007 7 303
2006 6 304
2005 7 328
2004 7 324
2003 7 323
2002 7 321
2001 8 299
2000 8 278
1999 8 277
1998 8 257
1997 8 218
1996 9 218
1995 9 219
1994 9 220
1993 9 219
1992 9 217
1991 9 216
1990 9 195
1989 9 198
1988 9 202
1987 9 206
1986 9 209
1985 9 191

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

GeoRank.org/birth-rate/belgium/nauru | CC BY

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 4 deaths per 100,000 live births in Belgium, compared to 273 deaths in Nauru.

Under-five mortality rates

Belgium
Nauru

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Belgium Nauru
2023 0.36% 0.89%
2022 0.37% 0.95%
2021 0.38% 1.02%
2020 0.39% 1.11%
2019 0.39% 1.22%
2018 0.4% 1.34%
2017 0.4% 1.47%
2016 0.41% 1.61%
2015 0.41% 1.76%
2014 0.42% 1.93%
2013 0.42% 2.11%
2012 0.43% 2.29%
2011 0.44% 2.48%
2010 0.45% 2.66%
2009 0.46% 2.84%
2008 0.47% 3%
2007 0.48% 3.15%
2006 0.49% 3.29%
2005 0.5% 3.41%
2004 0.52% 3.53%
2003 0.53% 3.66%
2002 0.55% 3.81%
2001 0.57% 3.96%
2000 0.59% 4.13%
1999 0.61% 4.32%
1998 0.64% 4.52%
1997 0.67% 4.74%
1996 0.72% 4.97%
1995 0.77% 5.22%
1994 0.82% 5.49%
1993 0.87% 5.78%
1992 0.92% 6.09%
1991 0.96% 6.41%
1990 1% 6.74%
1989 1.03% 7.08%
1988 1.07% 7.43%
1987 1.1% 7.81%
1986 1.14% 8.2%
1985 1.18% 8.62%
1984 1.22% -
1983 1.27% -
1982 1.33% -
1981 1.39% -
1980 1.45% -
1979 1.52% -
1978 1.59% -
1977 1.67% -
1976 1.76% -
1975 1.86% -
1974 1.97% -
1973 2.08% -
1972 2.19% -
1971 2.3% -
1970 2.39% -
1969 2.48% -
1968 2.55% -
1967 2.62% -
1966 2.7% -
1965 2.79% -
1964 2.89% -
1963 3% -
1962 3.12% -
1961 3.25% -
1960 3.39% -

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

GeoRank.org/birth-rate/belgium/nauru | CC BY

The chance that a newborn baby will die before reaching age five is 0.36% in Belgium and 0.89% in Nauru. 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. Central Intelligence Agency (CIA) (2017, retrieved 2026-02-20)
  4. United Nations Economic Commission for Europe (UNECE) (2023, retrieved 2026-03-10)

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.