Fertility & birth rates in Bulgaria and Mongolia

Fertility rate in Bulgaria vs Mongolia 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 2.7 in Mongolia in 2023. The replacement level is considered to be 2.1 children per woman.

Check Bulgaria vs Mongolia 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	Mongolia
1960	2.31	6.82
1961	2.29	6.96
1962	2.24	7.1
1963	2.21	7.24
1964	2.19	7.33
1965	2.09	7.38
1966	2.03	7.41
1967	2.02	7.39
1968	2.27	7.37
1969	2.27	7.34
1970	2.17	7.31
1971	2.1	7.3
1972	2.03	7.28
1973	2.15	7.24
1974	2.29	7.17
1975	2.23	7.07
1976	2.24	6.93
1977	2.21	6.79
1978	2.15	6.62
1979	2.16	6.42
1980	2.05	6.21
1981	2	5.98
1982	2.01	5.8
1983	2.01	5.63
1984	2.01	5.45
1985	1.97	5.26
1986	2.02	5.03
1987	1.96	4.83
1988	1.97	4.65
1989	1.9	4.42
1990	1.82	4.5
1991	1.66	4
1992	1.55	3.5
1993	1.46	2.5
1994	1.37	2.7
1995	1.23	2.77
1996	1.23	2.5
1997	1.09	2.4
1998	1.11	2.3
1999	1.23	2.3
2000	1.26	2.2
2001	1.21	2.2
2002	1.23	2.1
2003	1.26	2
2004	1.33	2
2005	1.37	2
2006	1.44	2.1
2007	1.49	2.3
2008	1.56	2.6
2009	1.66	2.8
2010	1.57	2.4
2011	1.51	2.6
2012	1.5	2.7
2013	1.54	3
2014	1.62	3.1
2015	1.64	3
2016	1.67	3
2017	1.71	2.8
2018	1.73	2.9
2019	1.79	3
2020	1.77	2.9
2021	1.8	2.8
2022	1.78	2.7
2023	1.81	2.7
2024	1.81	2.65
2025	1.8	2.6
2026	1.8	2.55
2027	1.8	2.51
2028	1.8	2.47
2029	1.79	2.44
2030	1.79	2.4
2031	1.79	2.37
2032	1.79	2.34
2033	1.79	2.31
2034	1.79	2.29
2035	1.78	2.26
2036	1.78	2.23
2037	1.78	2.21
2038	1.77	2.19
2039	1.77	2.17
2040	1.77	2.15
2041	1.77	2.13
2042	1.77	2.11
2043	1.76	2.09
2044	1.76	2.08
2045	1.76	2.06
2046	1.76	2.05
2047	1.76	2.04
2048	1.76	2.02
2049	1.76	2.01
2050	1.76	2

Children 0-14 years as share of population

Table

Year	Share of people 0-14 years old
	Bulgaria	Mongolia
1960	26.1%	38.1%
1961	25.8%	38.8%
1962	25.4%	39.6%
1963	25.1%	40.4%
1964	24.7%	41.4%
1965	24.2%	42.4%
1966	23.8%	43.3%
1967	23.4%	44.2%
1968	23.2%	44.9%
1969	23%	45.4%
1970	22.8%	45.6%
1971	22.6%	45.8%
1972	22.4%	45.8%
1973	22.3%	45.8%
1974	22.2%	45.6%
1975	22.3%	45.4%
1976	22.3%	45.2%
1977	22.2%	44.8%
1978	22.2%	44.5%
1979	22.1%	44.1%
1980	22.1%	43.7%
1981	22.1%	43.3%
1982	22.1%	43%
1983	22%	42.7%
1984	21.8%	42.5%
1985	21.6%	42.3%
1986	21.4%	42.1%
1987	21.3%	42%
1988	21.1%	41.8%
1989	20.8%	41.7%
1990	20.3%	41.4%
1991	19.8%	41%
1992	19.3%	40.5%
1993	18.8%	40%
1994	18.3%	39.5%
1995	17.9%	39%
1996	17.4%	38.4%
1997	17%	37.8%
1998	16.5%	37%
1999	16.1%	36.2%
2000	15.7%	35.2%
2001	15.2%	34.1%
2002	14.8%	32.9%
2003	14.4%	31.8%
2004	14%	30.8%
2005	13.7%	29.9%
2006	13.5%	29.1%
2007	13.4%	28.5%
2008	13.3%	28.1%
2009	13.4%	27.9%
2010	13.5%	27.9%
2011	13.5%	28%
2012	13.6%	28.1%
2013	13.7%	28.5%
2014	13.8%	28.9%
2015	13.9%	29.5%
2016	14%	30.2%
2017	14.2%	30.9%
2018	14.3%	31.6%
2019	14.4%	32.3%
2020	14.4%	32.8%
2021	14.5%	32.9%
2022	14.5%	32.9%
2023	14.5%	32.6%
2024	14.5%	32.2%
2025	14.4%	31.6%
2026	14.3%	30.9%
2027	14.3%	30.1%
2028	14.2%	29.2%
2029	14.1%	28.2%
2030	14%	27.3%
2031	14%	26.3%
2032	13.9%	25.6%
2033	13.8%	24.9%
2034	13.8%	24.3%
2035	13.7%	23.8%
2036	13.7%	23.4%
2037	13.7%	23.1%
2038	13.6%	23%
2039	13.6%	22.9%
2040	13.6%	22.8%
2041	13.6%	22.9%
2042	13.6%	22.9%
2043	13.6%	23%
2044	13.6%	23.1%
2045	13.6%	23.2%
2046	13.7%	23.3%
2047	13.7%	23.4%
2048	13.7%	23.4%
2049	13.8%	23.4%
2050	13.8%	23.3%

Children aged 0-14 make up 14.5% of the population in Bulgaria and 32.2% in Mongolia in 2024, compared to 20.3% and 41.4% respectively in 1990.

Demographics of Bulgaria and Mongolia compared.

Natural population change in Bulgaria vs Mongolia by year

For the past 10 years, the annual natural population change (excluding migration) has been -0.79% in Bulgaria and +1.81% in Mongolia. 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	Mongolia
1960	76,314	20,726
1961	75,460	21,873
1962	64,104	22,960
1963	66,241	24,142
1964	66,783	25,317
1965	58,249	26,364
1966	54,504	27,338
1967	49,861	28,178
1968	69,468	29,017
1969	63,256	29,781
1970	61,125	30,558
1971	52,925	31,536
1972	47,169	32,727
1973	57,760	33,993
1974	64,223	35,297
1975	54,941	36,490
1976	56,055	37,670
1977	47,543	38,995
1978	44,070	40,276
1979	40,599	41,568
1980	30,129	42,343
1981	29,341	43,588
1982	24,077	45,179
1983	21,455	46,919
1984	20,610	48,562
1985	11,649	49,944
1986	16,125	50,329
1987	8,971	51,140
1988	9,879	51,588
1989	5,326	51,420
1990	-3,487	49,443
1991	-14,675	47,884
1992	-18,789	42,437
1993	-24,569	36,924
1994	-32,086	34,711
1995	-42,030	34,473
1996	-45,159	33,741
1997	-58,185	32,403
1998	-52,844	31,757
1999	-39,411	32,283
2000	-41,668	32,753
2001	-44,050	32,052
2002	-46,240	30,439
2003	-44,319	28,827
2004	-40,128	28,418
2005	-42,124	29,290
2006	-39,526	33,609
2007	-37,727	39,636
2008	-32,967	45,843
2009	-26,800	48,876
2010	-34,759	44,914
2011	-37,477	50,711
2012	-40,183	55,942
2013	-37,948	62,618
2014	-41,027	66,078
2015	-44,699	64,473
2016	-42,744	62,086
2017	-45,583	57,940
2018	-46,304	60,635
2019	-46,317	61,433
2020	-65,507	60,888
2021	-90,452	52,109
2022	-62,065	47,730
2023	-43,837	46,995

Maternal mortality chart: Bulgaria vs Mongolia

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 41 deaths in Mongolia.

Table

Year	Maternal mortality per 100K births
	Bulgaria	Mongolia
1985	26	352
1986	25	346
1987	25	341
1988	26	335
1989	25	311
1990	27	276
1991	25	227
1992	25	199
1993	23	181
1994	25	178
1995	23	176
1996	22	178
1997	23	180
1998	20	174
1999	20	162
2000	19	144
2001	17	130
2002	15	120
2003	14	114
2004	14	108
2005	13	99
2006	12	90
2007	11	81
2008	10	77
2009	9	75
2010	9	71
2011	8	67
2012	7	63
2013	7	59
2014	7	56
2015	7	52
2016	7	48
2017	7	45
2018	7	45
2019	6	45
2020	9	47
2021	9	63
2022	10	41
2023	6	41

Under-five mortality rates

The chance that a newborn baby will die before reaching age five is 0.61% in Bulgaria and 1.36% in Mongolia. 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	Mongolia
1960	5.47%	-
1961	4.89%	-
1962	4.43%	-
1963	4.08%	-
1964	3.86%	-
1965	3.75%	-
1966	3.7%	-
1967	3.64%	-
1968	3.54%	-
1969	3.4%	-
1970	3.25%	-
1971	3.11%	-
1972	3.01%	-
1973	2.95%	-
1974	2.91%	-
1975	2.86%	-
1976	2.8%	-
1977	2.72%	-
1978	2.6%	17.3%
1979	2.49%	16.7%
1980	2.38%	16.1%
1981	2.3%	15.5%
1982	2.22%	15%
1983	2.15%	14.4%
1984	2.07%	13.9%
1985	1.97%	13.4%
1986	1.87%	12.8%
1987	1.8%	12.2%
1988	1.78%	11.7%
1989	1.79%	11.1%
1990	1.83%	10.7%
1991	1.89%	10.2%
1992	1.92%	9.78%
1993	1.92%	9.39%
1994	1.91%	9%
1995	1.92%	8.6%
1996	1.94%	8.19%
1997	1.93%	7.74%
1998	1.89%	7.27%
1999	1.82%	6.78%
2000	1.75%	6.29%
2001	1.68%	5.8%
2002	1.6%	5.32%
2003	1.51%	4.87%
2004	1.42%	4.45%
2005	1.33%	4.07%
2006	1.24%	3.71%
2007	1.18%	3.39%
2008	1.14%	3.11%
2009	1.12%	2.85%
2010	1.08%	2.63%
2011	1.04%	2.44%
2012	0.99%	2.28%
2013	0.93%	2.15%
2014	0.87%	2.04%
2015	0.82%	1.94%
2016	0.77%	1.84%
2017	0.73%	1.74%
2018	0.7%	1.64%
2019	0.67%	1.56%
2020	0.65%	1.48%
2021	0.63%	1.43%
2022	0.62%	1.39%
2023	0.61%	1.36%