Skip to content

Fertility & birth rates in Congo and Iran

Updated on by Georank team

The Congo has an annual birth rate of 30.6 births per 1,000 people, compared to 13 for Iran. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 4.16 in the Congo and 1.7 in Iran — 59.2% difference.

1960 vs 2023, the fertility rate has decreased by 31.7% in the Congo and by 77.5% in Iran — in 1960, it was 6.09 and 7.52, respectively.

  • The Congo is ranked 28/196 by birth rate compared to 108/196 for Iran.
  • The mean age at childbearing (for all the births, not just the first) is 28.6 in the Congo — it's 28.9 in Iran.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 109.9 in the Congo vs 26.2 in Iran.
  • In the Congo, 24% of the population is composed of women of reproductive age (15-49), compared to 26.8% in Iran.

Fertility rate in Congo vs Iran by year

Congo
Iran
1x
Year Fertility rate
Congo Iran
2023 4.16 1.7
2022 4.22 1.7
2021 4.28 1.71
2020 4.33 1.7
2019 4.38 1.77
2018 4.44 1.92
2017 4.5 2.02
2016 4.55 2.05
2015 4.61 2.02
2014 4.67 1.98
2013 4.73 1.91
2012 4.79 1.85
2011 4.83 1.79
2010 4.85 1.75
2009 4.81 1.74
2008 4.73 1.74
2007 4.65 1.75
2006 4.65 1.76
2005 4.67 1.76
2004 4.69 1.78
2003 4.7 1.8
2002 4.7 1.84
2001 4.67 1.92
2000 4.72 2
1999 4.81 2.09
1998 4.91 2.19
1997 5 2.32
1996 5.03 2.54
1995 5.07 2.85
1994 5.1 3.24
1993 5.13 3.67
1992 5.18 4.1
1991 5.22 4.57
1990 5.27 4.93
1989 5.33 5.17
1988 5.39 5.43
1987 5.46 5.72
1986 5.51 6.01
1985 5.59 6.24
1984 5.66 6.43
1983 5.76 6.53
1982 5.85 6.59
1981 5.98 6.62
1980 6.07 6.63
1979 6.14 6.55
1978 6.21 6.34
1977 6.27 6.18
1976 6.32 6.07
1975 6.36 5.95
1974 6.39 5.97
1973 6.42 6.06
1972 6.44 6.26
1971 6.42 6.55
1970 6.38 6.8
1969 6.35 7.01
1968 6.33 7.12
1967 6.29 7.19
1966 6.27 7.21
1965 6.23 7.22
1964 6.18 7.24
1963 6.15 7.32
1962 6.1 7.4
1961 6.09 7.46
1960 6.09 7.52

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

GeoRank.org/birth-rate/congo/iran | CC BY

According to the latest available data on birth rates, the fertility rate in the Congo was 4.16 children per woman in 2023, compared to 1.7 in Iran in 2023. The replacement level is considered to be 2.1 children per woman.

Check the Congo vs Iran population clock for a dynamic visualization of the changing population.

Natural population change by year

Congo
Iran
1x
Year Natural population change
Congo Iran
2023 150,486 750,150
2022 147,076 753,525
2021 144,241 645,725
2020 143,492 663,978
2019 139,513 893,063
2018 142,704 1,035,052
2017 141,973 1,140,549
2016 141,358 1,186,949
2015 141,539 1,178,317
2014 141,674 1,158,552
2013 142,080 1,119,533
2012 142,464 1,073,804
2011 140,371 1,023,925
2010 136,908 980,380
2009 126,904 958,322
2008 120,711 940,983
2007 112,459 919,254
2006 106,876 884,529
2005 101,344 837,305
2004 96,577 801,203
2003 91,326 732,600
2002 88,497 752,205
2001 84,876 743,658
2000 78,491 731,203
1999 76,204 723,237
1998 72,450 717,655
1997 66,149 726,574
1996 75,628 784,508
1995 74,189 879,648
1994 72,857 1,008,076
1993 71,119 1,219,658
1992 69,973 1,365,466
1991 68,534 1,495,594
1990 67,241 1,530,434
1989 65,944 1,609,739
1988 64,629 1,614,512
1987 63,183 1,639,644
1986 61,669 1,659,289
1985 60,359 1,661,750
1984 59,028 1,653,051
1983 58,120 1,573,612
1982 57,036 1,514,240
1981 56,603 1,376,830
1980 55,550 1,361,293
1979 54,723 1,294,306
1978 53,885 1,156,974
1977 53,179 1,091,542
1976 52,148 1,013,347
1975 51,155 929,481
1974 49,563 873,369
1973 48,017 831,880
1972 46,427 804,043
1971 44,431 805,830
1970 42,374 794,612
1969 40,532 780,660
1968 38,786 743,992
1967 36,866 727,276
1966 35,452 695,040
1965 33,865 663,029
1964 32,270 635,589
1963 30,832 620,126
1962 29,342 595,538
1961 28,220 594,674
1960 27,094 584,060

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

GeoRank.org/birth-rate/congo/iran | 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 +2.43% in the Congo and +0.83% in Iran.

For the past 10 years, the annual natural population change has been +2.59% in the Congo and +1.1% in Iran.

Birth rate in Congo vs Iran by year

Congo
Iran

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Congo Iran
2023 30.6 13
2022 30.9 13.3
2021 31.4 13.7
2020 31.7 14
2019 32.2 14.9
2018 32.8 16.7
2017 33.4 18
2016 34.1 18.8
2015 34.9 18.9
2014 35.8 18.8
2013 36.8 18.5
2012 37.8 18.1
2011 38.4 17.7
2010 38.9 17.3
2009 38 17.2
2008 38 17.1
2007 37.2 17
2006 37.1 16.7
2005 37 16.4
2004 37.1 16.2
2003 37 15.9
2002 37.3 15.9
2001 37.1 15.9
2000 36.2 16
1999 37 16.1
1998 37.5 16.2
1997 38.4 16.6
1996 38.4 17.7
1995 38.5 19.5
1994 38.6 22
1993 38.6 25.7
1992 38.7 28.3
1991 38.8 31.2
1990 38.9 33.5
1989 39.1 35.2
1988 39.2 37
1987 39.4 38.8
1986 39.6 40.7
1985 39.8 42.4
1984 40.1 43.9
1983 40.6 44.7
1982 40.8 45.2
1981 41.4 44.2
1980 41.8 45.1
1979 42.2 44.7
1978 42.7 43.4
1977 43.2 42.2
1976 43.6 41.4
1975 44 40.3
1974 44.1 40
1973 44.3 40.1
1972 44.5 40.9
1971 44.4 42.4
1970 44.1 43.6
1969 44 44.7
1968 43.9 45.3
1967 43.7 45.8
1966 43.6 46
1965 43.5 46.3
1964 43.4 46.7
1963 43.3 47.7
1962 43.2 48.8
1961 43.3 49.8
1960 43.5 51

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

GeoRank.org/birth-rate/congo/iran | CC BY

The latest reported birth rate per 1,000 people in 2023 was 30.6 in the Congo and 13 in Iran, compared with 43.5 and 51, respectively, in 1960.

Birth rate data compared

Congo Iran
Fertility rate 4.16 1.7
Fertility rate rank 23/196 121/196
Birth rate 30.6 13
Birth rate rank 28/196 108/196
Population change due to births and deaths +150,486 +750,150
Natural population change rank 69/196 25/196
Natural population change rate +2.43% +0.83%
Population growth +2.43% +1.06%
Population growth rank 31/197 98/197
Age at first childbirth 19.6 years n/a
Average age at childbearing 28.6 years 28.9 years
Annual births per 1,000 women ages 15-19 106.3 25
Annual births per 1,000 women ages 20-29 181.5 84
Annual births per 1,000 women ages 30+ 57.5 19.8
Female of reproductive age (15-49), share of population 24% 26.8%
Any modern method of contraceptive prevalence among married women ages 15-49 18.3% 57%
Share of births attended by skilled health staff 91.2% 99%
Maternal mortality per live birth 0.24% 0.02%
Neonatal mortality rate (before reaching 28 days of age) 1.77% 0.74%
Infant mortality rate (before reaching 1 year of age) 2.76% 1.07%
Mortality rate before reaching 5 years of age 4.05% 1.18%
Life expectancy 66.4 years 78.2 years

Children 0-14 years as share of population

Congo
Factual

UN forecast
Iran
Factual

UN forecast
1x
Year Young
Congo Iran
2100 22.6% 12.1%
2099 22.7% 12.2%
2098 22.8% 12.2%
2097 23% 12.3%
2096 23.1% 12.3%
2095 23.3% 12.4%
2094 23.4% 12.5%
2093 23.6% 12.6%
2092 23.8% 12.6%
2091 23.9% 12.7%
2090 24.1% 12.8%
2089 24.3% 12.8%
2088 24.4% 12.9%
2087 24.6% 12.9%
2086 24.8% 12.9%
2085 25% 13%
2084 25.2% 13%
2083 25.4% 12.9%
2082 25.6% 12.9%
2081 25.9% 12.9%
2080 26.1% 12.9%
2079 26.3% 12.8%
2078 26.5% 12.8%
2077 26.7% 12.8%
2076 26.9% 12.7%
2075 27.1% 12.7%
2074 27.3% 12.7%
2073 27.5% 12.7%
2072 27.7% 12.7%
2071 27.9% 12.7%
2070 28.1% 12.7%
2069 28.3% 12.8%
2068 28.5% 12.9%
2067 28.7% 13%
2066 29% 13.1%
2065 29.2% 13.2%
2064 29.4% 13.3%
2063 29.6% 13.5%
2062 29.9% 13.6%
2061 30.1% 13.8%
2060 30.4% 14%
2059 30.7% 14.1%
2058 30.9% 14.3%
2057 31.2% 14.4%
2056 31.5% 14.6%
2055 31.8% 14.7%
2054 32.1% 14.8%
2053 32.4% 14.9%
2052 32.7% 15%
2051 32.9% 15.1%
2050 33.2% 15.1%
2049 33.5% 15.2%
2048 33.8% 15.2%
2047 34.1% 15.2%
2046 34.3% 15.2%
2045 34.6% 15.3%
2044 34.8% 15.3%
2043 35% 15.4%
2042 35.2% 15.4%
2041 35.4% 15.5%
2040 35.6% 15.7%
2039 35.7% 15.8%
2038 35.9% 16%
2037 36.1% 16.3%
2036 36.3% 16.5%
2035 36.5% 16.8%
2034 36.7% 17.2%
2033 36.9% 17.7%
2032 37.2% 18.3%
2031 37.5% 19%
2030 37.8% 19.6%
2029 38.2% 20.2%
2028 38.6% 20.8%
2027 39.1% 21.3%
2026 39.7% 21.8%
2025 40.2% 22.2%
2024 40.4% 22.4%
2023 40.9% 22.8%
2022 41.3% 23.2%
2021 41.5% 23.6%
2020 41.8% 23.8%
2019 41.9% 23.9%
2018 42.1% 24%
2017 42.1% 23.9%
2016 42.1% 23.8%
2015 41.9% 23.6%
2014 41.7% 23.4%
2013 41.3% 23.3%
2012 41% 23.3%
2011 40.6% 23.3%
2010 40.4% 23.4%
2009 40.5% 23.7%
2008 40.7% 24%
2007 40.7% 24.6%
2006 40.9% 25.3%
2005 41.1% 26.2%
2004 41.4% 27.4%
2003 41.7% 28.7%
2002 41.9% 30.1%
2001 41.9% 31.7%
2000 42.5% 33.6%
1999 43.1% 35.4%
1998 43.3% 37.3%
1997 43.3% 39.1%
1996 43.2% 40.7%
1995 43.3% 42.1%
1994 43.4% 43.2%
1993 43.6% 43.6%
1992 43.8% 43.6%
1991 44% 43.9%
1990 44.2% 44.1%
1989 44.3% 44.2%
1988 44.5% 44%
1987 44.6% 43.9%
1986 44.7% 43.7%
1985 44.9% 43.5%
1984 45% 43.3%
1983 45.2% 43%
1982 45.4% 42.7%
1981 45.6% 42.9%
1980 45.7% 43.3%
1979 45.8% 43.1%
1978 45.8% 43%
1977 45.8% 42.9%
1976 45.7% 43%
1975 45.5% 43.2%
1974 45.4% 43.5%
1973 45.2% 43.8%
1972 45% 44.2%
1971 44.8% 44.4%
1970 44.7% 44.6%
1969 44.5% 44.7%
1968 44.3% 44.8%
1967 44.2% 44.8%
1966 44% 44.9%
1965 43.9% 45%
1964 43.7% 45%
1963 43.5% 44.9%
1962 43.3% 44.6%
1961 43% 44.1%
1960 42.7% 43.5%

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/congo/iran | CC BY

Children aged 0-14 make up 40.4% of the population in the Congo and 22.4% in Iran in 2024, compared to 44.2% and 44.1% respectively in 1990.

Demographics of the Congo and Iran compared.

Fertility rates around the globe

1x

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

GeoRank.org/birth-rate/congo/iran | CC BY

Maternal mortality chart: Congo vs Iran

Congo
Iran
1x
Year Maternal mortality per 100K births
Congo Iran
2023 241 16
2022 241 21
2021 301 51
2020 247 34
2019 245 18
2018 259 19
2017 262 20
2016 263 21
2015 284 22
2014 302 23
2013 320 24
2012 374 25
2011 378 26
2010 382 27
2009 414 28
2008 395 30
2007 370 31
2006 394 32
2005 385 33
2004 400 34
2003 436 37
2002 464 38
2001 489 40
2000 509 43
1999 554 46
1998 597 50
1997 650 55
1996 545 59
1995 551 65
1994 551 71
1993 541 80
1992 531 86
1991 514 94
1990 505 107
1989 506 113
1988 510 126
1987 519 136
1986 535 148
1985 546 160

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

GeoRank.org/birth-rate/congo/iran | CC BY

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 241 deaths per 100,000 live births in the Congo, compared to 16 deaths in Iran.

Under-five mortality rates

Congo
Iran

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Congo Iran
2023 4.05% 1.18%
2022 4.19% 1.22%
2021 4.33% 1.26%
2020 4.47% 1.3%
2019 5.24% 1.35%
2018 4.77% 1.39%
2017 4.93% 1.45%
2016 5.09% 1.5%
2015 5.27% 1.55%
2014 5.45% 1.61%
2013 5.64% 1.68%
2012 5.82% 1.75%
2011 6.02% 1.84%
2010 6.25% 1.93%
2009 6.55% 2.04%
2008 6.95% 2.17%
2007 7.43% 2.32%
2006 8.02% 2.48%
2005 8.66% 2.65%
2004 9.35% 2.83%
2003 10% 3.02%
2002 10.6% 3.22%
2001 11.1% 3.42%
2000 11.4% 3.63%
1999 11.5% 3.83%
1998 11.4% 4.02%
1997 11.2% 4.21%
1996 10.9% 4.4%
1995 10.5% 4.59%
1994 10.2% 4.79%
1993 9.84% 5%
1992 9.54% 5.22%
1991 9.31% 5.48%
1990 9.15% 5.76%
1989 9.05% 6.07%
1988 9.04% 6.42%
1987 9.11% 6.8%
1986 9.25% 7.2%
1985 9.44% 7.64%
1984 9.68% 8.13%
1983 9.95% 8.67%
1982 10.2% 9.3%
1981 10.5% 10%
1980 10.7% 10.8%
1979 11% 11.7%
1978 11.2% 12.6%
1977 11.5% 13.5%
1976 11.8% 14.4%
1975 12.1% 15.3%
1974 12.4% 16.2%
1973 12.6% 17.1%
1972 13% 18%
1971 13.4% 18.9%
1970 13.7% -
1969 14.2% -
1968 14.6% -
1967 15.1% -
1966 15.6% -
1965 16.1% -
1964 16.7% -
1963 17.3% -
1962 18% -
1961 18.6% -
1960 19.4% -

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

GeoRank.org/birth-rate/congo/iran | CC BY

The chance that a newborn baby will die before reaching age five is 4.05% in the Congo and 1.18% in Iran. 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) (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.