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Fertility & birth rates in Mauritius and Nauru

Updated on by Georank team

Mauritius has an annual birth rate of 10.2 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 1.39 in Mauritius and 3.33 in Nauru — 139.6% difference.

1960 vs 2023, the fertility rate has decreased by 76.4% in Mauritius and by 37.6% in Nauru — in 1960, it was 5.9 and 5.34, respectively.

  • Mauritius is ranked 144/196 by birth rate compared to 52/196 for Nauru.
  • The mean age at childbearing (for all the births, not just the first) is 29.5 in Mauritius — it's 27.1 in Nauru.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 19.8 in Mauritius vs 76.2 in Nauru.
  • In Mauritius, 25.5% of the population is composed of women of reproductive age (15-49), compared to 24.6% in Nauru.

Fertility rate in Mauritius vs Nauru by year

Mauritius
Nauru
1x
Year Fertility rate
Mauritius Nauru
2023 1.39 3.33
2022 1.32 3.38
2021 1.41 3.43
2020 1.44 3.47
2019 1.4 3.53
2018 1.41 3.68
2017 1.44 3.88
2016 1.4 4.03
2015 1.36 4.08
2014 1.43 4.09
2013 1.44 4.1
2012 1.54 4.12
2011 1.55 4.12
2010 1.57 4.02
2009 1.59 3.85
2008 1.67 3.67
2007 1.74 3.5
2006 1.77 3.4
2005 1.88 3.38
2004 1.92 3.38
2003 1.87 3.39
2002 1.94 3.4
2001 1.91 3.46
2000 1.99 3.54
1999 2.05 3.64
1998 1.97 3.68
1997 2.04 3.74
1996 2.12 3.78
1995 2.14 3.81
1994 2.25 3.84
1993 2.21 3.89
1992 2.37 3.95
1991 2.3 3.99
1990 2.32 4.02
1989 2.23 4.07
1988 2.14 4.11
1987 2.05 4.14
1986 1.99 4.15
1985 2.02 4.14
1984 2.16 4.11
1983 2.4 4.06
1982 2.53 3.99
1981 2.67 3.94
1980 2.8 3.88
1979 2.91 3.85
1978 3.01 3.84
1977 3.07 3.86
1976 3.13 3.9
1975 3.2 3.97
1974 3.45 4.07
1973 3.07 4.19
1972 3.41 4.36
1971 3.51 4.54
1970 3.82 4.74
1969 3.97 4.94
1968 4.6 5.14
1967 4.63 5.29
1966 5.46 5.41
1965 5.51 5.48
1964 5.96 5.47
1963 6.18 5.44
1962 5.88 5.42
1961 5.98 5.38
1960 5.9 5.34

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

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

According to the latest available data on birth rates, the fertility rate in Mauritius was 1.39 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 Mauritius vs Nauru population clock for a dynamic visualization of the changing population.

Natural population change by year

Mauritius
Nauru
1x
Year Natural population change
Mauritius Nauru
2023 999 213
2022 -757 226
2021 -253 236
2020 2,405 246
2019 1,773 255
2018 2,151 265
2017 3,415 279
2016 2,906 289
2015 3,031 291
2014 3,657 290
2013 4,281 291
2012 5,149 292
2011 5,511 291
2010 5,877 281
2009 6,113 261
2008 7,465 240
2007 8,429 222
2006 8,515 209
2005 10,195 204
2004 10,745 202
2003 10,799 201
2002 11,685 200
2001 11,723 203
2000 12,224 207
1999 12,341 212
1998 11,489 214
1997 11,943 218
1996 13,041 221
1995 13,020 225
1994 14,355 229
1993 14,814 235
1992 15,833 237
1991 15,091 225
1990 15,564 214
1989 14,718 204
1988 14,084 195
1987 13,262 186
1986 12,340 178
1985 12,451 171
1984 13,665 166
1983 14,525 163
1982 15,880 162
1981 18,334 157
1980 19,321 145
1979 19,282 130
1978 18,670 111
1977 16,769 89
1976 16,407 79
1975 15,342 70
1974 17,561 63
1973 13,145 57
1972 14,825 53
1971 15,441 50
1970 16,190 49
1969 15,761 71
1968 17,884 116
1967 17,560 117
1966 20,758 123
1965 20,482 113
1964 22,239 100
1963 22,069 88
1962 20,660 75
1961 20,355 70
1960 19,931 72

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

GeoRank.org/birth-rate/mauritius/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 +0.08% in Mauritius and +1.8% in Nauru.

For the past 10 years, the annual natural population change has been +0.15% in Mauritius and +2.28% in Nauru.

Birth rate in Mauritius vs Nauru by year

Mauritius
Nauru

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Mauritius Nauru
2023 10.2 25.5
2022 9.6 26.6
2021 10.3 27.8
2020 10.6 28.7
2019 10.2 29.6
2018 10.2 30.7
2017 10.7 32.2
2016 10.4 33.6
2015 10.1 34.2
2014 10.6 34.7
2013 10.9 35.3
2012 11.5 36.1
2011 11.7 36.8
2010 12 36.1
2009 12.3 34.3
2008 13.2 32.3
2007 13.7 30.4
2006 14.3 29.1
2005 15.3 28.5
2004 15.7 28.1
2003 15.9 27.9
2002 16.6 27.8
2001 16.5 27.9
2000 17 28.2
1999 17.3 28.6
1998 16.7 28.7
1997 17.4 29
1996 18.3 29.4
1995 18.3 29.8
1994 19.6 30.3
1993 20.3 31.1
1992 21.1 31.8
1991 20.7 31.7
1990 21.3 31.7
1989 20.8 31.9
1988 20.1 32
1987 19.3 32
1986 18.6 31.9
1985 19 31.9
1984 20.1 31.8
1983 21 31.8
1982 22.6 31.8
1981 25.5 31.2
1980 27.2 29.7
1979 27.5 27.6
1978 27.1 25
1977 26 21.8
1976 25.8 20.1
1975 25.3 18.7
1974 27.3 17.4
1973 23 16.3
1972 25.3 15.6
1971 26.1 15.2
1970 27.5 15.1
1969 27.7 18.8
1968 31.6 27.2
1967 31 28.3
1966 36 29.9
1965 36 29.1
1964 38.9 28.2
1963 40.4 27
1962 38.8 25.6
1961 39.7 25.6
1960 39.4 26.9

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

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

The latest reported birth rate per 1,000 people in 2023 was 10.2 in Mauritius and 25.5 in Nauru, compared with 39.4 and 26.9, respectively, in 1960.

Birth rate data compared

Mauritius Nauru
Fertility rate 1.39 3.33
Fertility rate rank 164/196 47/196
Birth rate 10.2 25.5
Birth rate rank 144/196 52/196
Population change due to births and deaths +999 +213
Natural population change rank 139/196 150/196
Natural population change rate +0.08% +1.8%
Population growth -0.23% +0.61%
Population growth rank 178/197 126/197
Age at first childbirth n/a 22.1 years
Average age at childbearing 29.5 years 27.1 years
Annual births per 1,000 women ages 15-19 17.7 77.7
Annual births per 1,000 women ages 20-29 52.4 176.3
Annual births per 1,000 women ages 30+ 13.9 37.1
Female of reproductive age (15-49), share of population 25.5% 24.6%
Any modern method of contraceptive prevalence among married women ages 15-49 31.1% 25.1%
Share of births attended by skilled health staff 99.7% 97.4%
Maternal mortality per live birth 0.07% 0.27%
Neonatal mortality rate (before reaching 28 days of age) 0.9% 0.48%
Infant mortality rate (before reaching 1 year of age) 1.35% 0.83%
Mortality rate before reaching 5 years of age 1.52% 0.89%
Life expectancy 75.4 years 62.6 years

Children 0-14 years as share of population

Mauritius
Factual

UN forecast
Nauru
Factual

UN forecast
1x
Year Young
Mauritius Nauru
2100 10.1% 20.7%
2099 10.1% 20.8%
2098 10.1% 21%
2097 10.1% 21.1%
2096 10% 21.2%
2095 10% 21.3%
2094 9.99% 21.4%
2093 9.98% 21.6%
2092 9.97% 21.7%
2091 9.97% 21.9%
2090 9.97% 22%
2089 9.98% 22.2%
2088 10% 22.4%
2087 10% 22.5%
2086 10% 22.7%
2085 10.1% 22.9%
2084 10.1% 23.1%
2083 10.1% 23.3%
2082 10.1% 23.4%
2081 10.2% 23.6%
2080 10.2% 23.8%
2079 10.2% 23.9%
2078 10.2% 24.1%
2077 10.2% 24.2%
2076 10.2% 24.3%
2075 10.2% 24.5%
2074 10.2% 24.6%
2073 10.2% 24.7%
2072 10.2% 24.9%
2071 10.2% 25%
2070 10.2% 25.1%
2069 10.2% 25.3%
2068 10.2% 25.4%
2067 10.2% 25.6%
2066 10.3% 25.8%
2065 10.3% 26%
2064 10.3% 26.2%
2063 10.3% 26.4%
2062 10.3% 26.7%
2061 10.4% 26.9%
2060 10.4% 27.2%
2059 10.5% 27.5%
2058 10.5% 27.9%
2057 10.6% 28.2%
2056 10.7% 28.5%
2055 10.8% 28.8%
2054 10.9% 29.1%
2053 11.1% 29.4%
2052 11.2% 29.7%
2051 11.3% 29.9%
2050 11.5% 30.2%
2049 11.6% 30.4%
2048 11.8% 30.6%
2047 11.9% 30.7%
2046 12% 30.8%
2045 12.1% 30.9%
2044 12.3% 30.9%
2043 12.4% 31%
2042 12.5% 31%
2041 12.6% 31%
2040 12.7% 31%
2039 12.7% 31.1%
2038 12.8% 31.2%
2037 12.9% 31.4%
2036 13.1% 31.8%
2035 13.2% 32%
2034 13.3% 32.3%
2033 13.4% 32.5%
2032 13.5% 32.9%
2031 13.6% 33.4%
2030 13.7% 34%
2029 13.9% 34.7%
2028 14% 35.3%
2027 14.2% 36.1%
2026 14.4% 36.8%
2025 14.7% 37.5%
2024 14.8% 37.8%
2023 15.1% 38.2%
2022 15.5% 38.3%
2021 15.9% 38.3%
2020 16.4% 38%
2019 16.9% 37.6%
2018 17.4% 37.6%
2017 17.9% 38%
2016 18.4% 38.2%
2015 18.9% 38.2%
2014 19.3% 38.2%
2013 19.7% 38%
2012 20.1% 37.7%
2011 20.6% 37.1%
2010 21.1% 36.3%
2009 21.7% 35.8%
2008 22.3% 35.6%
2007 22.9% 35.7%
2006 23.4% 36.1%
2005 23.9% 36.6%
2004 24.3% 37.1%
2003 24.7% 37.7%
2002 25% 38.2%
2001 25.3% 38.5%
2000 25.6% 38.9%
1999 25.8% 39.4%
1998 26.2% 39.9%
1997 26.6% 40.5%
1996 27% 41.1%
1995 27.5% 41.7%
1994 28% 42.1%
1993 28.5% 42.5%
1992 29% 42.5%
1991 29.4% 42.1%
1990 29.8% 41.2%
1989 30.1% 40.2%
1988 30.5% 39.2%
1987 30.8% 38.3%
1986 31.1% 37.5%
1985 31.4% 36.5%
1984 31.8% 35.7%
1983 32.2% 34.6%
1982 32.6% 33.2%
1981 33.1% 31.9%
1980 33.6% 30.9%
1979 34.2% 30.6%
1978 34.9% 30.9%
1977 35.7% 31.9%
1976 36.5% 33.4%
1975 37.3% 34.9%
1974 38.2% 36.4%
1973 39.1% 38.1%
1972 40.1% 39.7%
1971 40.9% 41.3%
1970 41.6% 42.9%
1969 42.3% 43.4%
1968 42.9% 41.3%
1967 43.4% 39.5%
1966 44% 39.4%
1965 44.4% 38.6%
1964 44.8% 37.5%
1963 45.1% 36.5%
1962 45.1% 35.7%
1961 45% 35.2%
1960 45% 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/mauritius/nauru | CC BY

Children aged 0-14 make up 14.8% of the population in Mauritius and 37.8% in Nauru in 2024, compared to 29.8% and 41.2% respectively in 1990.

Demographics of Mauritius and Nauru compared.

Fertility rates around the globe

1x

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

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

Maternal mortality chart: Mauritius vs Nauru

Mauritius
Nauru
1x
Year Maternal mortality per 100K births
Mauritius Nauru
2023 66 273
2022 61 317
2021 80 266
2020 58 309
2019 67 267
2018 67 269
2017 66 259
2016 62 248
2015 61 253
2014 60 240
2013 58 247
2012 55 255
2011 55 260
2010 53 297
2009 51 300
2008 48 302
2007 46 303
2006 45 304
2005 43 328
2004 43 324
2003 42 323
2002 42 321
2001 42 299
2000 43 278
1999 46 277
1998 48 257
1997 49 218
1996 52 218
1995 55 219
1994 63 220
1993 70 219
1992 73 217
1991 75 216
1990 77 195
1989 85 198
1988 93 202
1987 103 206
1986 106 209
1985 111 191

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

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

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 66 deaths per 100,000 live births in Mauritius, compared to 273 deaths in Nauru.

Under-five mortality rates

Mauritius
Nauru

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Mauritius Nauru
2023 1.52% 0.89%
2022 1.55% 0.95%
2021 1.57% 1.02%
2020 1.58% 1.11%
2019 1.57% 1.22%
2018 1.53% 1.34%
2017 1.5% 1.47%
2016 1.47% 1.61%
2015 1.47% 1.76%
2014 1.47% 1.93%
2013 1.49% 2.11%
2012 1.5% 2.29%
2011 1.49% 2.48%
2010 1.48% 2.66%
2009 1.48% 2.84%
2008 1.5% 3%
2007 1.52% 3.15%
2006 1.54% 3.29%
2005 1.55% 3.41%
2004 1.57% 3.53%
2003 1.6% 3.66%
2002 1.66% 3.81%
2001 1.76% 3.96%
2000 1.89% 4.13%
1999 2.03% 4.32%
1998 2.16% 4.52%
1997 2.25% 4.74%
1996 2.26% 4.97%
1995 2.22% 5.22%
1994 2.16% 5.49%
1993 2.12% 5.78%
1992 2.13% 6.09%
1991 2.19% 6.41%
1990 2.32% 6.74%
1989 2.5% 7.08%
1988 2.7% 7.43%
1987 2.85% 7.81%
1986 2.88% 8.2%
1985 2.85% 8.62%
1984 2.92% -
1983 3.15% -
1982 3.47% -
1981 3.77% -
1980 4.02% -
1979 4.28% -
1978 4.62% -
1977 5.08% -
1976 5.74% -
1975 6.53% -
1974 7.24% -
1973 7.71% -
1972 7.98% -
1971 8.15% -
1970 8.35% -
1969 8.72% -
1968 9.25% -
1967 9.55% -
1966 9.25% -
1965 8.66% -
1964 8.4% -
1963 8.72% -
1962 9.31% -
1961 9.82% -
1960 10.2% -

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

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

The chance that a newborn baby will die before reaching age five is 1.52% in Mauritius and 0.89% in Nauru. 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) (2017, retrieved 2026-02-20)

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