Fertility & birth rates in Bulgaria and South Sudan

Fertility rate in Bulgaria vs South Sudan chart

According to the latest available data on birth rates, the fertility rate in Bulgaria was 1.81 children per woman in 2023, compared to 3.86 in South Sudan in 2023. The replacement level is considered to be 2.1 children per woman.

Check Bulgaria vs South Sudan population clock for a dynamic visualization of the changing population.

The chart below showcases historical changes in the birth rates.

Table

Year	Fertility rate
	Bulgaria	South Sudan
1960	2.31	7.16
1961	2.29	7.18
1962	2.24	7.2
1963	2.21	7.2
1964	2.19	7.22
1965	2.09	7.22
1966	2.03	7.25
1967	2.02	7.26
1968	2.27	7.26
1969	2.27	7.28
1970	2.17	7.29
1971	2.1	7.3
1972	2.03	7.31
1973	2.15	7.31
1974	2.29	7.31
1975	2.23	7.33
1976	2.24	7.33
1977	2.21	7.33
1978	2.15	7.33
1979	2.16	7.32
1980	2.05	7.33
1981	2	7.33
1982	2.01	7.34
1983	2.01	7.34
1984	2.01	7.35
1985	1.97	7.36
1986	2.02	7.38
1987	1.96	7.39
1988	1.97	7.38
1989	1.9	7.37
1990	1.82	7.38
1991	1.66	7.38
1992	1.55	7.37
1993	1.46	7.36
1994	1.37	7.35
1995	1.23	7.34
1996	1.23	7.32
1997	1.09	7.2
1998	1.11	7.08
1999	1.23	6.94
2000	1.26	6.8
2001	1.21	6.65
2002	1.23	6.52
2003	1.26	6.35
2004	1.33	6.19
2005	1.37	6.02
2006	1.44	5.85
2007	1.49	5.7
2008	1.56	5.57
2009	1.66	5.45
2010	1.57	5.32
2011	1.51	5.19
2012	1.5	5.06
2013	1.54	4.94
2014	1.62	4.82
2015	1.64	4.7
2016	1.67	4.58
2017	1.71	4.48
2018	1.73	4.37
2019	1.79	4.26
2020	1.77	4.16
2021	1.8	4.05
2022	1.78	3.96
2023	1.81	3.86
2024	1.81	3.79
2025	1.8	3.71
2026	1.8	3.63
2027	1.8	3.56
2028	1.8	3.49
2029	1.79	3.43
2030	1.79	3.37
2031	1.79	3.31
2032	1.79	3.26
2033	1.79	3.2
2034	1.79	3.15
2035	1.78	3.1
2036	1.78	3.06
2037	1.78	3.01
2038	1.77	2.96
2039	1.77	2.92
2040	1.77	2.88
2041	1.77	2.84
2042	1.77	2.8
2043	1.76	2.76
2044	1.76	2.73
2045	1.76	2.69
2046	1.76	2.66
2047	1.76	2.63
2048	1.76	2.6
2049	1.76	2.58
2050	1.76	2.55

Children 0-14 years as share of population

Table

Year	Share of people 0-14 years old
	Bulgaria	South Sudan
1960	26.1%	42.5%
1961	25.8%	42.6%
1962	25.4%	42.6%
1963	25.1%	42.8%
1964	24.7%	43%
1965	24.2%	43.3%
1966	23.8%	43.5%
1967	23.4%	43.8%
1968	23.2%	44%
1969	23%	44.3%
1970	22.8%	44.5%
1971	22.6%	44.7%
1972	22.4%	44.8%
1973	22.3%	45%
1974	22.2%	45.1%
1975	22.3%	45.2%
1976	22.3%	45.3%
1977	22.2%	45.4%
1978	22.2%	45.5%
1979	22.1%	45.7%
1980	22.1%	45.8%
1981	22.1%	46%
1982	22.1%	46.2%
1983	22%	46.3%
1984	21.8%	46.5%
1985	21.6%	46.6%
1986	21.4%	46.7%
1987	21.3%	46.9%
1988	21.1%	46.2%
1989	20.8%	45.4%
1990	20.3%	45.4%
1991	19.8%	45.5%
1992	19.3%	45.6%
1993	18.8%	45.7%
1994	18.3%	45.8%
1995	17.9%	45.8%
1996	17.4%	46%
1997	17%	46%
1998	16.5%	45.8%
1999	16.1%	45.6%
2000	15.7%	45.5%
2001	15.2%	45.5%
2002	14.8%	45.7%
2003	14.4%	45.9%
2004	14%	45.8%
2005	13.7%	45.3%
2006	13.5%	44.8%
2007	13.4%	44.3%
2008	13.3%	43.8%
2009	13.4%	43.4%
2010	13.5%	42.8%
2011	13.5%	42.2%
2012	13.6%	41.9%
2013	13.7%	41.9%
2014	13.8%	42.5%
2015	13.9%	43.1%
2016	14%	43.7%
2017	14.2%	45%
2018	14.3%	44.9%
2019	14.4%	43.6%
2020	14.4%	42.4%
2021	14.5%	41.6%
2022	14.5%	40.9%
2023	14.5%	39.9%
2024	14.5%	38.9%
2025	14.4%	38%
2026	14.3%	37.1%
2027	14.3%	36.2%
2028	14.2%	35.5%
2029	14.1%	35%
2030	14%	34.7%
2031	14%	34.5%
2032	13.9%	34.4%
2033	13.8%	34.3%
2034	13.8%	34.3%
2035	13.7%	34.2%
2036	13.7%	34.1%
2037	13.7%	34%
2038	13.6%	33.8%
2039	13.6%	33.7%
2040	13.6%	33.4%
2041	13.6%	33.2%
2042	13.6%	32.9%
2043	13.6%	32.5%
2044	13.6%	32.2%
2045	13.6%	31.8%
2046	13.7%	31.4%
2047	13.7%	31%
2048	13.7%	30.5%
2049	13.8%	30.1%
2050	13.8%	29.7%

Children aged 0-14 make up 14.5% of the population in Bulgaria and 38.9% in South Sudan in 2024, compared to 20.3% and 45.4% respectively in 1990.

Demographics of Bulgaria and South Sudan compared.

Natural population change in Bulgaria vs South Sudan by year

For the past 10 years, the annual natural population change (excluding migration) has been -0.79% in Bulgaria and +1.65% in South Sudan. The chart below illustrates the comparison of the absolute yearly changes resulting from births and deaths.

Table

Year	Population change due to births and deaths
	Bulgaria	South Sudan
1960	76,314	42,945
1961	75,460	45,186
1962	64,104	47,406
1963	66,241	46,333
1964	66,783	64,786
1965	58,249	51,682
1966	54,504	38,523
1967	49,861	41,357
1968	69,468	44,213
1969	63,256	42,015
1970	61,125	44,776
1971	52,925	72,308
1972	47,169	74,803
1973	57,760	94,765
1974	64,223	97,181
1975	54,941	99,882
1976	56,055	102,346
1977	47,543	104,886
1978	44,070	107,352
1979	40,599	109,540
1980	30,129	112,307
1981	29,341	115,163
1982	24,077	118,641
1983	21,455	104,107
1984	20,610	90,970
1985	11,649	95,342
1986	16,125	99,502
1987	8,971	5,756
1988	9,879	-125,447
1989	5,326	83,735
1990	-3,487	82,900
1991	-14,675	87,873
1992	-18,789	28,874
1993	-24,569	32,779
1994	-32,086	165,407
1995	-42,030	110,417
1996	-45,159	116,728
1997	-58,185	121,454
1998	-52,844	-12,157
1999	-39,411	180,721
2000	-41,668	196,055
2001	-44,050	204,108
2002	-46,240	212,014
2003	-44,319	225,822
2004	-40,128	231,877
2005	-42,124	239,272
2006	-39,526	246,706
2007	-37,727	256,546
2008	-32,967	268,268
2009	-26,800	278,859
2010	-34,759	287,409
2011	-37,477	303,181
2012	-40,183	312,974
2013	-37,948	315,983
2014	-41,027	227,611
2015	-44,699	148,542
2016	-42,744	110,553
2017	-45,583	72,193
2018	-46,304	168,497
2019	-46,317	209,708
2020	-65,507	212,332
2021	-90,452	213,567
2022	-62,065	211,166
2023	-43,837	217,966

Maternal mortality chart: Bulgaria vs South Sudan

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 692 deaths in South Sudan.

Table

Year	Maternal mortality per 100K births
	Bulgaria	South Sudan
1985	26	3,845
1986	25	3,720
1987	25	8,045
1988	26	5,535
1989	25	5,103
1990	27	4,877
1991	25	4,764
1992	25	7,597
1993	23	7,537
1994	25	1,666
1995	23	4,430
1996	22	4,357
1997	23	4,172
1998	20	7,514
1999	20	2,048
2000	19	1,658
2001	17	1,580
2002	15	1,521
2003	14	1,199
2004	14	1,150
2005	13	1,074
2006	12	1,005
2007	11	933
2008	10	858
2009	9	823
2010	9	776
2011	8	770
2012	7	755
2013	7	771
2014	7	1,216
2015	7	1,436
2016	7	1,629
2017	7	1,662
2018	7	913
2019	6	745
2020	9	729
2021	9	749
2022	10	704
2023	6	692

Under-five mortality rates

The chance that a newborn baby will die before reaching age five is 0.61% in Bulgaria and 9.87% in South Sudan. Below is the historical data on under-five mortality rates.

Table

Year	Mortality rate before reaching 5 years of age, per 1,000 live births
	Bulgaria	South Sudan
1960	5.47%	35.5%
1961	4.89%	35.2%
1962	4.43%	34.9%
1963	4.08%	34.6%
1964	3.86%	34.3%
1965	3.75%	34%
1966	3.7%	33.6%
1967	3.64%	33.3%
1968	3.54%	32.9%
1969	3.4%	32.6%
1970	3.25%	32.3%
1971	3.11%	31.9%
1972	3.01%	31.6%
1973	2.95%	31.3%
1974	2.91%	30.9%
1975	2.86%	30.6%
1976	2.8%	30.2%
1977	2.72%	29.9%
1978	2.6%	29.5%
1979	2.49%	29.2%
1980	2.38%	28.9%
1981	2.3%	28.5%
1982	2.22%	28.2%
1983	2.15%	27.8%
1984	2.07%	27.5%
1985	1.97%	27.1%
1986	1.87%	26.7%
1987	1.8%	36%
1988	1.78%	76.7%
1989	1.79%	30.7%
1990	1.83%	30.3%
1991	1.89%	29.7%
1992	1.92%	33.8%
1993	1.92%	33.1%
1994	1.91%	23%
1995	1.92%	27%
1996	1.94%	26.1%
1997	1.93%	25.2%
1998	1.89%	42.6%
1999	1.82%	19.2%
2000	1.75%	18.3%
2001	1.68%	17.4%
2002	1.6%	16.5%
2003	1.51%	15.7%
2004	1.42%	14.8%
2005	1.33%	14.1%
2006	1.24%	13.4%
2007	1.18%	12.7%
2008	1.14%	12.1%
2009	1.12%	11.5%
2010	1.08%	10.9%
2011	1.04%	10.5%
2012	0.99%	10.1%
2013	0.93%	9.92%
2014	0.87%	18.2%
2015	0.82%	23.7%
2016	0.77%	26.4%
2017	0.73%	27.8%
2018	0.7%	13.2%
2019	0.67%	9.87%
2020	0.65%	9.87%
2021	0.63%	9.87%
2022	0.62%	9.87%
2023	0.61%	9.87%