Skip to content

Fertility & birth rates in Bulgaria and Saint Kitts and Nevis

Updated on by Georank team

Bulgaria has an annual birth rate of 8.9 births per 1,000 people, compared to 11.7 for Saint Kitts and Nevis. The average number of children a woman is expected to have during her lifetime — the fertility rate, is 1.81 in Bulgaria and 1.51 in Saint Kitts and Nevis — 16.9% difference.

1960 vs 2023, the fertility rate has decreased by 21.6% in Bulgaria and by 77% in Saint Kitts and Nevis — in 1960, it was 2.31 and 6.54, respectively.

  • Bulgaria is ranked 165/196 by birth rate compared to 119/196 for Saint Kitts and Nevis.
  • The mean age at childbearing (for all the births, not just the first) is 28.3 in Bulgaria — it's 27.6 in Saint Kitts and Nevis.
  • Annual births per 1,000 women ages 15-19 (adolescent birth rate or teenage mother rate) is 39.1 in Bulgaria vs 35.2 in Saint Kitts and Nevis.
  • In Bulgaria, 20.7% of the population is composed of women of reproductive age (15-49), compared to 27.1% in Saint Kitts and Nevis.

Fertility rate in Bulgaria vs Saint Kitts and Nevis by year

Bulgaria
Saint Kitts and Nevis
1x
Year Fertility rate
Bulgaria Saint Kitts
2023 1.81 1.51
2022 1.78 1.51
2021 1.8 1.53
2020 1.77 1.55
2019 1.79 1.57
2018 1.73 1.59
2017 1.71 1.61
2016 1.67 1.63
2015 1.64 1.64
2014 1.62 1.67
2013 1.54 1.68
2012 1.5 1.71
2011 1.51 1.74
2010 1.57 1.76
2009 1.66 1.8
2008 1.56 1.83
2007 1.49 1.87
2006 1.44 1.9
2005 1.37 1.93
2004 1.33 1.96
2003 1.26 2
2002 1.23 2.04
2001 1.21 2.08
2000 1.26 2.13
1999 1.23 2.26
1998 1.11 2.31
1997 1.09 2.3
1996 1.23 2.26
1995 1.23 2.3
1994 1.37 2.31
1993 1.46 2.38
1992 1.55 2.43
1991 1.66 2.6
1990 1.82 2.73
1989 1.9 2.69
1988 1.97 2.62
1987 1.96 2.62
1986 2.02 2.68
1985 1.97 2.82
1984 2.01 2.88
1983 2.01 3.1
1982 2.01 3.18
1981 2 3.3
1980 2.05 3.26
1979 2.16 3.23
1978 2.15 3.29
1977 2.21 3.48
1976 2.24 3.59
1975 2.23 3.68
1974 2.29 3.81
1973 2.15 3.97
1972 2.03 4.16
1971 2.1 4.51
1970 2.17 4.73
1969 2.27 4.97
1968 2.27 5.17
1967 2.02 5.46
1966 2.03 5.78
1965 2.09 6.01
1964 2.19 6.08
1963 2.21 6.12
1962 2.24 6.06
1961 2.29 6.27
1960 2.31 6.54

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

GeoRank.org/birth-rate/bulgaria/saint-kitts-and-nevis | CC BY

According to the latest available data on birth rates, the fertility rate in Bulgaria was 1.81 children per woman in 2023, compared to 1.51 in Saint Kitts and Nevis in 2023. The replacement level is considered to be 2.1 children per woman.

Check Bulgaria vs Saint Kitts and Nevis population clock for a dynamic visualization of the changing population.

Natural population change by year

Bulgaria
Saint Kitts and Nevis
1x
Year Natural population change
Bulgaria Saint Kitts
2023 -43,837 84
2022 -62,065 14
2021 -90,452 -20
2020 -65,507 98
2019 -46,317 135
2018 -46,304 150
2017 -45,583 169
2016 -42,744 185
2015 -44,699 197
2014 -41,027 213
2013 -37,948 227
2012 -40,183 246
2011 -37,477 250
2010 -34,759 274
2009 -26,800 300
2008 -32,967 322
2007 -37,727 341
2006 -39,526 355
2005 -42,124 361
2004 -40,128 365
2003 -44,319 369
2002 -46,240 365
2001 -44,050 369
2000 -41,668 376
1999 -39,411 413
1998 -52,844 415
1997 -58,185 405
1996 -45,159 379
1995 -42,030 382
1994 -32,086 370
1993 -24,569 373
1992 -18,789 369
1991 -14,675 411
1990 -3,487 471
1989 5,326 476
1988 9,879 471
1987 8,971 486
1986 16,125 520
1985 11,649 574
1984 20,610 598
1983 21,455 664
1982 24,077 672
1981 29,341 684
1980 30,129 652
1979 40,599 643
1978 44,070 654
1977 47,543 697
1976 56,055 703
1975 54,941 688
1974 64,223 670
1973 57,760 646
1972 47,169 619
1971 52,925 615
1970 61,125 611
1969 63,256 708
1968 69,468 812
1967 49,861 951
1966 54,504 1,103
1965 58,249 1,228
1964 66,783 1,305
1963 66,241 1,360
1962 64,104 1,373
1961 75,460 1,466
1960 76,314 1,562

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

GeoRank.org/birth-rate/bulgaria/saint-kitts-and-nevis | 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 -0.68% in Bulgaria and +0.18% in Saint Kitts and Nevis.

For the past 10 years, the annual natural population change has been -0.79% in Bulgaria and +0.26% in Saint Kitts and Nevis.

Birth rate in Bulgaria vs Saint Kitts and Nevis by year

Bulgaria
Saint Kitts and Nevis

Annual births per 1,000 people

1x
Year Annual births per 1,000 people
Bulgaria Saint Kitts
2023 8.9 11.7
2022 8.8 12
2021 9 12.3
2020 9 12.6
2019 9.3 12.9
2018 9.3 13.1
2017 9.4 13.4
2016 9.4 13.6
2015 9.4 13.7
2014 9.6 14
2013 9.3 14.1
2012 9.5 14.4
2011 9.6 14.7
2010 10.2 14.9
2009 10.9 15.3
2008 10.4 15.6
2007 10 15.9
2006 9.7 16.1
2005 9.3 16.3
2004 9.1 16.5
2003 8.7 16.8
2002 8.5 16.9
2001 8.5 17.3
2000 9 17.7
1999 8.8 18.9
1998 7.9 19.5
1997 7.7 19.5
1996 8.6 19.3
1995 8.6 19.7
1994 9.4 19.7
1993 10 20.2
1992 10.4 20.6
1991 11.1 22.1
1990 12.1 23.7
1989 12.6 23.7
1988 13.1 23.4
1987 13 23.6
1986 13.4 24.3
1985 13.3 25.5
1984 13.6 26.1
1983 13.8 27.7
1982 13.9 28
1981 14 28.4
1980 14.5 27.6
1979 15.3 27.1
1978 15.5 27.2
1977 16.1 28
1976 16.5 28
1975 16.6 27.6
1974 17.2 27.1
1973 16.2 26.5
1972 15.3 25.9
1971 15.9 25.9
1970 16.3 25.8
1969 17 27.7
1968 16.9 29.4
1967 15 31.9
1966 14.9 34.5
1965 15.3 36.7
1964 16.1 37.9
1963 16.4 38.8
1962 16.7 38.9
1961 17.4 40.7
1960 17.8 42.6

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

GeoRank.org/birth-rate/bulgaria/saint-kitts-and-nevis | CC BY

The latest reported birth rate per 1,000 people in 2023 was 8.9 in Bulgaria and 11.7 in Saint Kitts and Nevis, compared with 17.8 and 42.6, respectively, in 1960.

Birth rate data compared

Bulgaria Saint Kitts
Fertility rate 1.81 1.51
Fertility rate rank 110/196 141/196
Birth rate 8.9 11.7
Birth rate rank 165/196 119/196
Population change due to births and deaths -43,837 +84
Natural population change rank 182/196 154/196
Natural population change rate -0.68% +0.18%
Population growth -0.08% +0.18%
Population growth rank 171/197 156/197
Age at first childbirth 26.9 years n/a
Average age at childbearing 28.3 years 27.6 years
Annual births per 1,000 women ages 15-19 36 39.2
Annual births per 1,000 women ages 20-29 86.2 76.3
Annual births per 1,000 women ages 30+ 10.7 13.6
Female of reproductive age (15-49), share of population 20.7% 27.1%
Any modern method of contraceptive prevalence among married women ages 15-49 39.6% n/a
Share of births attended by skilled health staff 94.5% 100%
Maternal mortality per live birth 0.006% 0.07%
Neonatal mortality rate (before reaching 28 days of age) 0.26% 1.03%
Infant mortality rate (before reaching 1 year of age) 0.5% 1.43%
Mortality rate before reaching 5 years of age 0.61% 1.63%
Life expectancy 76.1 years 72.6 years

Children 0-14 years as share of population

Bulgaria
Factual

UN forecast
Saint Kitts and Nevis
Factual

UN forecast
1x
Year Young
Bulgaria Saint Kitts
2100 13% 12.8%
2099 13.1% 12.8%
2098 13.1% 12.8%
2097 13.1% 12.8%
2096 13.2% 12.8%
2095 13.2% 12.9%
2094 13.3% 12.9%
2093 13.4% 12.9%
2092 13.4% 12.9%
2091 13.4% 12.9%
2090 13.5% 12.9%
2089 13.5% 12.9%
2088 13.6% 12.9%
2087 13.6% 13%
2086 13.6% 13%
2085 13.6% 13%
2084 13.6% 13%
2083 13.6% 13%
2082 13.6% 13%
2081 13.6% 13%
2080 13.6% 13%
2079 13.6% 13%
2078 13.6% 13%
2077 13.6% 13%
2076 13.6% 13%
2075 13.5% 13.1%
2074 13.5% 13.1%
2073 13.5% 13.1%
2072 13.5% 13.1%
2071 13.5% 13.2%
2070 13.5% 13.2%
2069 13.6% 13.2%
2068 13.6% 13.3%
2067 13.6% 13.3%
2066 13.6% 13.4%
2065 13.6% 13.4%
2064 13.7% 13.5%
2063 13.7% 13.5%
2062 13.7% 13.6%
2061 13.8% 13.6%
2060 13.8% 13.7%
2059 13.8% 13.7%
2058 13.9% 13.8%
2057 13.9% 13.9%
2056 13.9% 13.9%
2055 13.9% 14%
2054 13.9% 14.1%
2053 13.9% 14.1%
2052 13.9% 14.2%
2051 13.8% 14.3%
2050 13.8% 14.4%
2049 13.8% 14.4%
2048 13.7% 14.5%
2047 13.7% 14.6%
2046 13.6% 14.7%
2045 13.6% 14.8%
2044 13.6% 14.9%
2043 13.6% 15%
2042 13.6% 15.1%
2041 13.6% 15.3%
2040 13.6% 15.5%
2039 13.6% 15.6%
2038 13.7% 15.8%
2037 13.7% 16%
2036 13.7% 16.2%
2035 13.7% 16.4%
2034 13.8% 16.6%
2033 13.8% 16.9%
2032 13.9% 17.1%
2031 14% 17.4%
2030 14.1% 17.6%
2029 14.2% 17.8%
2028 14.2% 18.1%
2027 14.3% 18.3%
2026 14.4% 18.5%
2025 14.4% 18.2%
2024 14.5% 18.2%
2023 14.5% 18.3%
2022 14.5% 18.6%
2021 14.5% 18.8%
2020 14.4% 19.1%
2019 14.4% 19.3%
2018 14.3% 19.6%
2017 14.2% 19.9%
2016 14% 20.2%
2015 13.9% 20.6%
2014 13.8% 21.1%
2013 13.7% 21.7%
2012 13.6% 22.2%
2011 13.5% 22.7%
2010 13.5% 23.3%
2009 13.4% 24%
2008 13.3% 24.4%
2007 13.4% 24.8%
2006 13.5% 25.3%
2005 13.7% 26%
2004 14% 26.6%
2003 14.4% 27.4%
2002 14.8% 28.1%
2001 15.2% 28.8%
2000 15.7% 29.3%
1999 16.1% 29.7%
1998 16.5% 30.1%
1997 17% 30.6%
1996 17.4% 31.1%
1995 17.9% 31.7%
1994 18.3% 32.3%
1993 18.8% 32.9%
1992 19.3% 33.6%
1991 19.8% 34.1%
1990 20.3% 34.2%
1989 20.8% 34.1%
1988 21.1% 34.1%
1987 21.3% 34.2%
1986 21.4% 34.3%
1985 21.6% 34.5%
1984 21.8% 34.7%
1983 22% 35.1%
1982 22.1% 35.6%
1981 22.1% 36.2%
1980 22.1% 36.9%
1979 22.1% 37.6%
1978 22.2% 38.2%
1977 22.2% 38.8%
1976 22.3% 39.6%
1975 22.3% 40.5%
1974 22.2% 41.6%
1973 22.3% 42.9%
1972 22.4% 44.3%
1971 22.6% 45.8%
1970 22.8% 47.2%
1969 23% 47.7%
1968 23.2% 47.4%
1967 23.4% 47%
1966 23.8% 46.6%
1965 24.2% 46.3%
1964 24.7% 46.1%
1963 25.1% 46%
1962 25.4% 45.8%
1961 25.8% 45.7%
1960 26.1% 45.6%

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/bulgaria/saint-kitts-and-nevis | CC BY

Children aged 0-14 make up 14.5% of the population in Bulgaria and 18.2% in Saint Kitts and Nevis in 2024, compared to 20.3% and 34.2% respectively in 1990.

Demographics of Bulgaria and Saint Kitts and Nevis compared.

Fertility rates around the globe

1x

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

GeoRank.org/birth-rate/bulgaria/saint-kitts-and-nevis | CC BY

Maternal mortality chart: Bulgaria vs Saint Kitts and Nevis

Bulgaria
Saint Kitts and Nevis
1x
Year Maternal mortality per 100K births
Bulgaria Saint Kitts
2023 6 74
2022 10 99
2021 9 111
2020 9 80
2019 6 74
2018 7 78
2017 7 74
2016 7 75
2015 7 76
2014 7 82
2013 7 82
2012 7 88
2011 8 90
2010 9 92
2009 9 93
2008 10 95
2007 11 96
2006 12 99
2005 13 102
2004 14 104
2003 14 111
2002 15 115
2001 17 131
2000 19 143
1999 20 164
1998 20 193
1997 23 194
1996 22 194
1995 23 204
1994 25 205
1993 23 225
1992 25 255
1991 25 280
1990 27 302
1989 25 316
1988 26 308
1987 25 302
1986 25 285
1985 26 290

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

GeoRank.org/birth-rate/bulgaria/saint-kitts-and-nevis | CC BY

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 6 deaths per 100,000 live births in Bulgaria, compared to 74 deaths in Saint Kitts and Nevis.

Under-five mortality rates

Bulgaria
Saint Kitts and Nevis

Probability that a newborn baby will die before reaching age five

1x
Year Under 5 mortality rate
Bulgaria Saint Kitts
2023 0.61% 1.63%
2022 0.62% 1.68%
2021 0.63% 1.72%
2020 0.65% 1.77%
2019 0.67% 1.82%
2018 0.7% 1.86%
2017 0.73% 1.9%
2016 0.77% 1.93%
2015 0.82% 1.94%
2014 0.87% 1.95%
2013 0.93% 1.93%
2012 0.99% 1.91%
2011 1.04% 1.89%
2010 1.08% 1.88%
2009 1.12% 1.87%
2008 1.14% 1.88%
2007 1.18% 1.89%
2006 1.24% 1.92%
2005 1.33% 1.97%
2004 1.42% 2.03%
2003 1.51% 2.11%
2002 1.6% 2.2%
2001 1.68% 2.29%
2000 1.75% 2.39%
1999 1.82% 2.48%
1998 1.89% 2.56%
1997 1.93% 2.64%
1996 1.94% 2.7%
1995 1.92% 2.76%
1994 1.91% 2.8%
1993 1.92% 2.85%
1992 1.92% 2.9%
1991 1.89% 2.96%
1990 1.83% 3.03%
1989 1.79% 3.12%
1988 1.78% 3.24%
1987 1.8% 3.39%
1986 1.87% 3.56%
1985 1.97% 3.76%
1984 2.07% 4%
1983 2.15% 4.26%
1982 2.22% 4.53%
1981 2.3% 4.81%
1980 2.38% 5.06%
1979 2.49% 5.29%
1978 2.6% 5.48%
1977 2.72% 5.64%
1976 2.8% 5.78%
1975 2.86% 5.91%
1974 2.91% 6.03%
1973 2.95% 6.16%
1972 3.01% -
1971 3.11% -
1970 3.25% -
1969 3.4% -
1968 3.54% -
1967 3.64% -
1966 3.7% -
1965 3.75% -
1964 3.86% -
1963 4.08% -
1962 4.43% -
1961 4.89% -
1960 5.47% -

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

GeoRank.org/birth-rate/bulgaria/saint-kitts-and-nevis | CC BY

The chance that a newborn baby will die before reaching age five is 0.61% in Bulgaria and 1.63% in Saint Kitts and Nevis. 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. 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.