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Fertility & birth rates in Nauru and Zimbabwe

Updated on by Georank team

Nauru has an annual birth rate of 25.5 births per 1,000 people, compared to 30.4 for Zimbabwe. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 3.33 in Nauru and 3.72 in Zimbabwe — 11.8% difference.

1960 vs 2023, the fertility rate has decreased by 37.6% in Nauru and by 48.2% in Zimbabwe — in 1960, it was 5.34 and 7.2, respectively.

  • Nauru is ranked 52/196 by birth rate compared to 31/196 for Zimbabwe.
  • The mean age for first-time mothers is 22.1 years in Nauru, compared to 20.3 years in Zimbabwe.
  • The mean age at childbearing (for all the births, not just the first) is 27.1 in Nauru — it's 28.1 in Zimbabwe.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 76.2 in Nauru vs 98.1 in Zimbabwe.
  • In Nauru, 24.6% of the population is composed of women of reproductive age (15-49), compared to 26.5% in Zimbabwe.

Fertility rate in Nauru vs Zimbabwe by year

Nauru
Zimbabwe
1x
Year Fertility rate
Nauru Zimbabwe
2023 3.33 3.72
2022 3.38 3.77
2021 3.43 3.77
2020 3.47 3.75
2019 3.53 3.75
2018 3.68 3.74
2017 3.88 3.77
2016 4.03 3.83
2015 4.08 3.91
2014 4.09 4.01
2013 4.1 4.11
2012 4.12 4.13
2011 4.12 4.13
2010 4.02 4.04
2009 3.85 3.95
2008 3.67 3.78
2007 3.5 3.68
2006 3.4 3.64
2005 3.38 3.69
2004 3.38 3.78
2003 3.39 3.86
2002 3.4 3.93
2001 3.46 3.98
2000 3.54 4.01
1999 3.64 4.06
1998 3.68 4.07
1997 3.74 4.08
1996 3.78 4.11
1995 3.81 4.15
1994 3.84 4.28
1993 3.89 4.39
1992 3.95 4.57
1991 3.99 4.72
1990 4.02 4.88
1989 4.07 5.07
1988 4.11 5.28
1987 4.14 5.5
1986 4.15 5.69
1985 4.14 5.87
1984 4.11 6.04
1983 4.06 6.2
1982 3.99 6.33
1981 3.94 6.45
1980 3.88 6.52
1979 3.85 6.59
1978 3.84 6.66
1977 3.86 6.71
1976 3.9 6.77
1975 3.97 6.83
1974 4.07 6.88
1973 4.19 6.94
1972 4.36 6.94
1971 4.54 6.94
1970 4.74 6.98
1969 4.94 7.04
1968 5.14 7.11
1967 5.29 7.16
1966 5.41 7.2
1965 5.48 7.23
1964 5.47 7.23
1963 5.44 7.23
1962 5.42 7.23
1961 5.38 7.21
1960 5.34 7.2

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

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

According to the latest available data on birth rates, the fertility rate in Nauru was 3.33 children per woman in 2023, compared to 3.72 in Zimbabwe in 2023. The replacement level is considered to be 2.1 children per woman.

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

Natural population change by year

Nauru
Zimbabwe
1x
Year Natural population change
Nauru Zimbabwe
2023 213 372,505
2022 226 371,243
2021 236 349,908
2020 246 354,790
2019 255 348,798
2018 265 345,883
2017 279 344,035
2016 289 348,772
2015 291 356,203
2014 290 366,350
2013 291 374,757
2012 292 371,135
2011 291 359,572
2010 281 335,570
2009 261 309,316
2008 240 280,527
2007 222 261,805
2006 209 248,963
2005 204 248,545
2004 202 248,307
2003 201 243,057
2002 200 244,170
2001 203 227,909
2000 207 236,343
1999 212 232,393
1998 214 225,614
1997 218 216,288
1996 221 205,269
1995 225 206,695
1994 229 216,343
1993 235 228,045
1992 237 255,291
1991 225 260,943
1990 214 265,444
1989 204 270,838
1988 195 277,498
1987 186 286,766
1986 178 289,894
1985 171 290,756
1984 166 290,052
1983 163 286,545
1982 162 279,934
1981 157 271,361
1980 145 241,179
1979 130 223,657
1978 111 222,979
1977 89 225,139
1976 79 221,419
1975 70 216,947
1974 63 208,806
1973 57 201,885
1972 53 193,725
1971 50 185,427
1970 49 178,979
1969 71 172,626
1968 116 166,865
1967 117 161,205
1966 123 156,014
1965 113 151,164
1964 100 145,848
1963 88 140,984
1962 75 136,317
1961 70 131,531
1960 72 126,959

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

GeoRank.org/birth-rate/nauru/zimbabwe | 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 +1.8% in Nauru and +2.28% in Zimbabwe.

For the past 10 years, the annual natural population change has been +2.28% in Nauru and +2.34% in Zimbabwe.

Birth rate in Nauru vs Zimbabwe by year

Nauru
Zimbabwe

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Nauru Zimbabwe
2023 25.5 30.4
2022 26.6 30.9
2021 27.8 30.9
2020 28.7 31
2019 29.6 31.1
2018 30.7 31.3
2017 32.2 31.8
2016 33.6 32.7
2015 34.2 33.9
2014 34.7 35.4
2013 35.3 37
2012 36.1 37.8
2011 36.8 38.1
2010 36.1 37.9
2009 34.3 37.5
2008 32.3 36.4
2007 30.4 35.7
2006 29.1 35.2
2005 28.5 35.8
2004 28.1 36.3
2003 27.9 36.6
2002 27.8 36.5
2001 27.9 36.5
2000 28.2 36.1
1999 28.6 35.6
1998 28.7 34.5
1997 29 33.4
1996 29.4 32.4
1995 29.8 31.7
1994 30.3 32
1993 31.1 32.4
1992 31.8 34.3
1991 31.7 34.9
1990 31.7 35.5
1989 31.9 36.4
1988 32 37.7
1987 32 39.5
1986 31.9 40.9
1985 31.9 42.3
1984 31.8 43.7
1983 31.8 45
1982 31.8 45.7
1981 31.2 46.3
1980 29.7 44.8
1979 27.6 46.3
1978 25 46.8
1977 21.8 46.5
1976 20.1 46.5
1975 18.7 46.6
1974 17.4 46.4
1973 16.3 46.4
1972 15.6 46
1971 15.2 45.6
1970 15.1 45.5
1969 18.8 45.5
1968 27.2 45.7
1967 28.3 45.8
1966 29.9 46.1
1965 29.1 46.4
1964 28.2 46.6
1963 27 46.8
1962 25.6 47.1
1961 25.6 47.3
1960 26.9 47.5

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

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

The latest reported birth rate per 1,000 people in 2023 was 25.5 in Nauru and 30.4 in Zimbabwe, compared with 26.9 and 47.5, respectively, in 1960.

Birth rate data compared

Nauru Zimbabwe
Fertility rate 3.33 3.72
Fertility rate rank 47/196 36/196
Birth rate 25.5 30.4
Birth rate rank 52/196 31/196
Population change due to births and deaths +213 +372,505
Natural population change rank 150/196 45/196
Natural population change rate +1.8% +2.28%
Population growth +0.61% +1.8%
Population growth rank 126/197 60/197
Age at first childbirth 22.1 years 20.3 years
Average age at childbearing 27.1 years 28.1 years
Annual births per 1,000 women ages 15-19 77.7 93.2
Annual births per 1,000 women ages 20-29 176.3 176.7
Annual births per 1,000 women ages 30+ 37.1 47.2
Female of reproductive age (15-49), share of population 24.6% 26.5%
Any modern method of contraceptive prevalence among married women ages 15-49 25.1% 65.8%
Share of births attended by skilled health staff 97.4% 86%
Maternal mortality per live birth 0.27% 0.36%
Neonatal mortality rate (before reaching 28 days of age) 0.48% 2.24%
Infant mortality rate (before reaching 1 year of age) 0.83% 4.06%
Mortality rate before reaching 5 years of age 0.89% 4.42%
Life expectancy 62.6 years 63.6 years

Children 0-14 years as share of population

Nauru
Factual

UN forecast
Zimbabwe
Factual

UN forecast
1x
Year Young
Nauru Zimbabwe
2100 20.7% 20.3%
2099 20.8% 20.5%
2098 21% 20.6%
2097 21.1% 20.8%
2096 21.2% 20.9%
2095 21.3% 21.1%
2094 21.4% 21.3%
2093 21.6% 21.4%
2092 21.7% 21.6%
2091 21.9% 21.8%
2090 22% 22%
2089 22.2% 22.2%
2088 22.4% 22.4%
2087 22.5% 22.6%
2086 22.7% 22.8%
2085 22.9% 23%
2084 23.1% 23.2%
2083 23.3% 23.4%
2082 23.4% 23.6%
2081 23.6% 23.8%
2080 23.8% 24%
2079 23.9% 24.2%
2078 24.1% 24.4%
2077 24.2% 24.6%
2076 24.3% 24.9%
2075 24.5% 25.1%
2074 24.6% 25.3%
2073 24.7% 25.5%
2072 24.9% 25.7%
2071 25% 25.9%
2070 25.1% 26.2%
2069 25.3% 26.4%
2068 25.4% 26.6%
2067 25.6% 26.8%
2066 25.8% 27.1%
2065 26% 27.3%
2064 26.2% 27.6%
2063 26.4% 27.8%
2062 26.7% 28.1%
2061 26.9% 28.4%
2060 27.2% 28.7%
2059 27.5% 29%
2058 27.9% 29.3%
2057 28.2% 29.6%
2056 28.5% 30%
2055 28.8% 30.3%
2054 29.1% 30.6%
2053 29.4% 31%
2052 29.7% 31.3%
2051 29.9% 31.7%
2050 30.2% 32%
2049 30.4% 32.4%
2048 30.6% 32.7%
2047 30.7% 33.1%
2046 30.8% 33.4%
2045 30.9% 33.7%
2044 30.9% 34%
2043 31% 34.2%
2042 31% 34.5%
2041 31% 34.7%
2040 31% 34.9%
2039 31.1% 35.2%
2038 31.2% 35.4%
2037 31.4% 35.7%
2036 31.8% 35.9%
2035 32% 36.2%
2034 32.3% 36.4%
2033 32.5% 36.6%
2032 32.9% 36.9%
2031 33.4% 37.2%
2030 34% 37.6%
2029 34.7% 38.1%
2028 35.3% 38.7%
2027 36.1% 39.3%
2026 36.8% 40%
2025 37.5% 40.6%
2024 37.8% 40.9%
2023 38.2% 41.3%
2022 38.3% 41.6%
2021 38.3% 41.9%
2020 38% 42.2%
2019 37.6% 42.5%
2018 37.6% 42.9%
2017 38% 43.3%
2016 38.2% 43.6%
2015 38.2% 43.8%
2014 38.2% 43.9%
2013 38% 43.9%
2012 37.7% 43.7%
2011 37.1% 43.4%
2010 36.3% 43%
2009 35.8% 42.7%
2008 35.6% 42.4%
2007 35.7% 42.1%
2006 36.1% 42%
2005 36.6% 41.9%
2004 37.1% 41.7%
2003 37.7% 41.5%
2002 38.2% 41.4%
2001 38.5% 41.5%
2000 38.9% 41.9%
1999 39.4% 42.4%
1998 39.9% 43.1%
1997 40.5% 44%
1996 41.1% 45%
1995 41.7% 45.9%
1994 42.1% 46.6%
1993 42.5% 47.1%
1992 42.5% 46.8%
1991 42.1% 46.6%
1990 41.2% 47.1%
1989 40.2% 47.6%
1988 39.2% 47.9%
1987 38.3% 47.9%
1986 37.5% 47.9%
1985 36.5% 48%
1984 35.7% 48.1%
1983 34.6% 48.2%
1982 33.2% 48.3%
1981 31.9% 48.4%
1980 30.9% 48.7%
1979 30.6% 48.8%
1978 30.9% 48.5%
1977 31.9% 48.3%
1976 33.4% 48.2%
1975 34.9% 48.1%
1974 36.4% 48.1%
1973 38.1% 48.1%
1972 39.7% 48.2%
1971 41.3% 48.2%
1970 42.9% 48.3%
1969 43.4% 48.4%
1968 41.3% 48.5%
1967 39.5% 48.5%
1966 39.4% 48.6%
1965 38.6% 48.7%
1964 37.5% 48.8%
1963 36.5% 48.5%
1962 35.7% 48.1%
1961 35.2% 47.7%
1960 34.8% 47.3%

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/nauru/zimbabwe | CC BY

Children aged 0-14 make up 37.8% of the population in Nauru and 40.9% in Zimbabwe in 2024, compared to 41.2% and 47.1% respectively in 1990.

Demographics of Nauru and Zimbabwe compared.

Fertility rates around the globe

1x

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

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

Maternal mortality chart: Nauru vs Zimbabwe

Nauru
Zimbabwe
1x
Year Maternal mortality per 100K births
Nauru Zimbabwe
2023 273 358
2022 317 368
2021 266 446
2020 309 380
2019 267 388
2018 269 386
2017 259 389
2016 248 411
2015 253 428
2014 240 468
2013 247 525
2012 255 558
2011 260 564
2010 297 567
2009 300 540
2008 302 526
2007 303 519
2006 304 480
2005 328 454
2004 324 451
2003 323 455
2002 321 418
2001 299 467
2000 278 405
1999 277 399
1998 257 368
1997 218 357
1996 218 352
1995 219 332
1994 220 332
1993 219 331
1992 217 333
1991 216 332
1990 195 353
1989 198 382
1988 202 431
1987 206 480
1986 209 525
1985 191 573

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

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

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 273 deaths per 100,000 live births in Nauru, compared to 358 deaths in Zimbabwe.

Under-five mortality rates

Nauru
Zimbabwe

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Nauru Zimbabwe
2023 0.89% 4.42%
2022 0.95% 4.6%
2021 1.02% 4.76%
2020 1.11% 5.01%
2019 1.22% 5.11%
2018 1.34% 5.23%
2017 1.47% 5.5%
2016 1.61% 5.69%
2015 1.76% 5.98%
2014 1.93% 6.18%
2013 2.11% 6.55%
2012 2.29% 7.14%
2011 2.48% 7.88%
2010 2.66% 8.5%
2009 2.84% 9.03%
2008 3% 9.34%
2007 3.15% 9.47%
2006 3.29% 9.4%
2005 3.41% 9.23%
2004 3.53% 9.17%
2003 3.66% 8.85%
2002 3.81% 8.48%
2001 3.96% 9.79%
2000 4.13% 9.83%
1999 4.32% 9.92%
1998 4.52% 10%
1997 4.74% 10.1%
1996 4.97% 10%
1995 5.22% 9.83%
1994 5.49% 9.52%
1993 5.78% 9.16%
1992 6.09% 8.73%
1991 6.41% 8.33%
1990 6.74% 7.97%
1989 7.08% 7.69%
1988 7.43% 7.55%
1987 7.81% 7.61%
1986 8.2% 7.86%
1985 8.62% 8.31%
1984 - 8.87%
1983 - 9.5%
1982 - 10.1%
1981 - 10.7%
1980 - 11.1%
1979 - 11.3%
1978 - 11.5%
1977 - 11.5%
1976 - 11.5%
1975 - 11.4%
1974 - 11.4%
1973 - 11.4%
1972 - 11.5%
1971 - 11.5%
1970 - 11.7%
1969 - 11.8%
1968 - 12.1%
1967 - 12.4%
1966 - 12.7%
1965 - 13.1%
1964 - 13.5%
1963 - 14%
1962 - 14.4%
1961 - 14.8%
1960 - 15.2%

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

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

The chance that a newborn baby will die before reaching age five is 0.89% in Nauru and 4.42% in Zimbabwe. 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) (2017–2025, retrieved 2026-02-20)

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