Fertility & birth rates in Bulgaria and Comoros

Fertility rate in Bulgaria vs Comoros by year

Chart Table

Bulgaria

Comoros

1x

Year	Fertility rate
	Bulgaria	Comoros
2023	1.81	3.88
2022	1.78	3.94
2021	1.8	4
2020	1.77	4.07
2019	1.79	4.14
2018	1.73	4.21
2017	1.71	4.28
2016	1.67	4.35
2015	1.64	4.42
2014	1.62	4.49
2013	1.54	4.57
2012	1.5	4.65
2011	1.51	4.72
2010	1.57	4.76
2009	1.66	4.78
2008	1.56	4.81
2007	1.49	4.86
2006	1.44	4.93
2005	1.37	5.01
2004	1.33	5.07
2003	1.26	5.12
2002	1.23	5.16
2001	1.21	5.2
2000	1.26	5.23
1999	1.23	5.28
1998	1.11	5.39
1997	1.09	5.51
1996	1.23	5.63
1995	1.23	5.73
1994	1.37	5.86
1993	1.46	6.02
1992	1.55	6.19
1991	1.66	6.35
1990	1.82	6.51
1989	1.9	6.65
1988	1.97	6.76
1987	1.96	6.87
1986	2.02	6.95
1985	1.97	7.02
1984	2.01	7.07
1983	2.01	7.11
1982	2.01	7.13
1981	2	7.14
1980	2.05	7.15
1979	2.16	7.16
1978	2.15	7.16
1977	2.21	7.15
1976	2.24	7.16
1975	2.23	7.16
1974	2.29	7.16
1973	2.15	7.17
1972	2.03	7.14
1971	2.1	7.12
1970	2.17	7.1
1969	2.27	7.07
1968	2.27	7.05
1967	2.02	7.02
1966	2.03	7
1965	2.09	6.97
1964	2.19	6.94
1963	2.21	6.92
1962	2.24	6.9
1961	2.29	6.85
1960	2.31	6.79

According to the latest available data on birth rates, the fertility rate in Bulgaria was 1.81 children per woman in 2023, compared to 3.88 in Comoros in 2023. The replacement level is considered to be 2.1 children per woman.

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

Natural population change by year

Chart Table

Bulgaria

Comoros

1x

Year	Natural population change
	Bulgaria	Comoros
2023	-43,837	18,247
2022	-62,065	18,154
2021	-90,452	17,645
2020	-65,507	17,906
2019	-46,317	17,936
2018	-46,304	17,883
2017	-45,583	17,798
2016	-42,744	17,913
2015	-44,699	17,961
2014	-41,027	17,876
2013	-37,948	17,776
2012	-40,183	17,565
2011	-37,477	17,313
2010	-34,759	16,849
2009	-26,800	16,315
2008	-32,967	15,804
2007	-37,727	15,393
2006	-39,526	15,124
2005	-42,124	14,810
2004	-40,128	14,349
2003	-44,319	14,031
2002	-46,240	13,760
2001	-44,050	13,598
2000	-41,668	13,270
1999	-39,411	13,161
1998	-52,844	13,099
1997	-58,185	13,254
1996	-45,159	13,390
1995	-42,030	13,403
1994	-32,086	13,465
1993	-24,569	13,667
1992	-18,789	13,867
1991	-14,675	13,783
1990	-3,487	13,610
1989	5,326	13,374
1988	9,879	13,144
1987	8,971	12,869
1986	16,125	12,566
1985	11,649	12,202
1984	20,610	11,830
1983	21,455	11,367
1982	24,077	11,002
1981	29,341	10,569
1980	30,129	10,095
1979	40,599	9,637
1978	44,070	9,189
1977	47,543	8,750
1976	56,055	8,371
1975	54,941	7,752
1974	64,223	7,654
1973	57,760	7,328
1972	47,169	7,019
1971	52,925	6,722
1970	61,125	6,456
1969	63,256	6,189
1968	69,468	5,960
1967	49,861	5,741
1966	54,504	5,601
1965	58,249	5,465
1964	66,783	5,359
1963	66,241	5,249
1962	64,104	5,157
1961	75,460	5,027
1960	76,314	4,886

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 +2.15% in Comoros.

For the past 10 years, the annual natural population change has been -0.79% in Bulgaria and +2.31% in Comoros.

Birth rate in Bulgaria vs Comoros by year

Chart Table

Bulgaria

Comoros

Annual births per 1,000 people

1x

Year	Annual births per 1,000 people
	Bulgaria	Comoros
2023	8.9	28.7
2022	8.8	29.1
2021	9	29.5
2020	9	30
2019	9.3	30.4
2018	9.3	30.9
2017	9.4	31.4
2016	9.4	32.1
2015	9.4	32.8
2014	9.6	33.3
2013	9.3	33.9
2012	9.5	34.2
2011	9.6	34.5
2010	10.2	34.4
2009	10.9	34.3
2008	10.4	34.1
2007	10	34.1
2006	9.7	34.3
2005	9.3	34.4
2004	9.1	34.3
2003	8.7	34.5
2002	8.5	34.7
2001	8.5	35.1
2000	9	35.4
1999	8.8	35.7
1998	7.9	36.4
1997	7.7	37.3
1996	8.6	38.1
1995	8.6	38.9
1994	9.4	39.7
1993	10	41
1992	10.4	42.3
1991	11.1	43
1990	12.1	43.7
1989	12.6	44.4
1988	13.1	45
1987	13	45.6
1986	13.4	46
1985	13.3	46.4
1984	13.6	46.6
1983	13.8	46.7
1982	13.9	46.9
1981	14	46.9
1980	14.5	46.8
1979	15.3	46.7
1978	15.5	46.6
1977	16.1	46.4
1976	16.5	46.5
1975	16.6	46.5
1974	17.2	46.5
1973	16.2	46.7
1972	15.3	46.8
1971	15.9	47
1970	16.3	47.2
1969	17	47.4
1968	16.9	47.6
1967	15	47.8
1966	14.9	48.3
1965	15.3	48.5
1964	16.1	48.7
1963	16.4	49
1962	16.7	49.3
1961	17.4	49.4
1960	17.8	49.4

The latest reported birth rate per 1,000 people in 2023 was 8.9 in Bulgaria and 28.7 in Comoros, compared with 17.8 and 49.4, respectively, in 1960.

Children 0-14 years as share of population

Chart Table

Bulgaria

Factual

UN forecast

Comoros

Factual

UN forecast

1x

Year	Young
	Bulgaria	Comoros
2100	13%	19.8%
2099	13.1%	19.9%
2098	13.1%	20.1%
2097	13.1%	20.2%
2096	13.2%	20.4%
2095	13.2%	20.5%
2094	13.3%	20.7%
2093	13.4%	20.9%
2092	13.4%	21%
2091	13.4%	21.2%
2090	13.5%	21.4%
2089	13.5%	21.5%
2088	13.6%	21.7%
2087	13.6%	21.9%
2086	13.6%	22.1%
2085	13.6%	22.2%
2084	13.6%	22.4%
2083	13.6%	22.6%
2082	13.6%	22.8%
2081	13.6%	22.9%
2080	13.6%	23.1%
2079	13.6%	23.3%
2078	13.6%	23.5%
2077	13.6%	23.7%
2076	13.6%	23.9%
2075	13.5%	24.1%
2074	13.5%	24.3%
2073	13.5%	24.5%
2072	13.5%	24.7%
2071	13.5%	24.9%
2070	13.5%	25.1%
2069	13.6%	25.3%
2068	13.6%	25.6%
2067	13.6%	25.8%
2066	13.6%	26.1%
2065	13.6%	26.3%
2064	13.7%	26.5%
2063	13.7%	26.8%
2062	13.7%	27%
2061	13.8%	27.3%
2060	13.8%	27.6%
2059	13.8%	27.8%
2058	13.9%	28.1%
2057	13.9%	28.3%
2056	13.9%	28.6%
2055	13.9%	28.8%
2054	13.9%	29.1%
2053	13.9%	29.3%
2052	13.9%	29.5%
2051	13.8%	29.8%
2050	13.8%	30%
2049	13.8%	30.2%
2048	13.7%	30.5%
2047	13.7%	30.7%
2046	13.6%	30.9%
2045	13.6%	31.1%
2044	13.6%	31.4%
2043	13.6%	31.6%
2042	13.6%	31.8%
2041	13.6%	32.1%
2040	13.6%	32.4%
2039	13.6%	32.6%
2038	13.7%	32.9%
2037	13.7%	33.2%
2036	13.7%	33.5%
2035	13.7%	33.9%
2034	13.8%	34.2%
2033	13.8%	34.5%
2032	13.9%	34.9%
2031	14%	35.2%
2030	14.1%	35.5%
2029	14.2%	35.8%
2028	14.2%	36.1%
2027	14.3%	36.4%
2026	14.4%	36.7%
2025	14.4%	37%
2024	14.5%	37.1%
2023	14.5%	37.4%
2022	14.5%	37.7%
2021	14.5%	38%
2020	14.4%	38.3%
2019	14.4%	38.6%
2018	14.3%	38.9%
2017	14.2%	39.3%
2016	14%	39.6%
2015	13.9%	39.8%
2014	13.8%	40%
2013	13.7%	40.2%
2012	13.6%	40.5%
2011	13.5%	41%
2010	13.5%	41.6%
2009	13.4%	42.2%
2008	13.3%	42.9%
2007	13.4%	43.6%
2006	13.5%	44.3%
2005	13.7%	45%
2004	14%	45.7%
2003	14.4%	46.3%
2002	14.8%	46.6%
2001	15.2%	46.7%
2000	15.7%	47%
1999	16.1%	47.4%
1998	16.5%	47.7%
1997	17%	47.9%
1996	17.4%	47.9%
1995	17.9%	47.9%
1994	18.3%	47.7%
1993	18.8%	47.5%
1992	19.3%	47.1%
1991	19.8%	46.9%
1990	20.3%	47%
1989	20.8%	47%
1988	21.1%	46.9%
1987	21.3%	46.9%
1986	21.4%	46.9%
1985	21.6%	46.9%
1984	21.8%	46.8%
1983	22%	46.9%
1982	22.1%	46.9%
1981	22.1%	46.9%
1980	22.1%	46.9%
1979	22.1%	46.9%
1978	22.2%	46.8%
1977	22.2%	46.7%
1976	22.3%	46.6%
1975	22.3%	46.4%
1974	22.2%	46.3%
1973	22.3%	46.2%
1972	22.4%	46%
1971	22.6%	45.9%
1970	22.8%	45.8%
1969	23%	45.6%
1968	23.2%	45.3%
1967	23.4%	44.9%
1966	23.8%	44.5%
1965	24.2%	44.1%
1964	24.7%	43.7%
1963	25.1%	43.1%
1962	25.4%	42.5%
1961	25.8%	42%
1960	26.1%	41.6%

Children aged 0-14 make up 14.5% of the population in Bulgaria and 37.1% in Comoros in 2024, compared to 20.3% and 47% respectively in 1990.

Demographics of Bulgaria and Comoros compared.

Maternal mortality chart: Bulgaria vs Comoros

Chart Table

Bulgaria

Comoros

1x

Year	Maternal mortality per 100K births
	Bulgaria	Comoros
2023	6	179
2022	10	186
2021	9	215
2020	9	198
2019	6	202
2018	7	209
2017	7	219
2016	7	225
2015	7	237
2014	7	247
2013	7	260
2012	7	274
2011	8	291
2010	9	305
2009	9	320
2008	10	334
2007	11	352
2006	12	360
2005	13	373
2004	14	385
2003	14	400
2002	15	428
2001	17	440
2000	19	476
1999	20	486
1998	20	515
1997	23	520
1996	22	545
1995	23	571
1994	25	602
1993	23	642
1992	25	675
1991	25	704
1990	27	737
1989	25	768
1988	26	791
1987	25	811
1986	25	825
1985	26	850

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 179 deaths in Comoros.

Under-five mortality rates

Chart Table

Bulgaria

Comoros

Probability that a newborn baby will die before reaching age five

1x

Year	Under 5 mortality rate
	Bulgaria	Comoros
2023	0.61%	3.98%
2022	0.62%	4.11%
2021	0.63%	4.24%
2020	0.65%	4.35%
2019	0.67%	4.46%
2018	0.7%	4.56%
2017	0.73%	4.66%
2016	0.77%	4.76%
2015	0.82%	4.87%
2014	0.87%	4.97%
2013	0.93%	5.08%
2012	0.99%	5.21%
2011	1.04%	5.36%
2010	1.08%	5.51%
2009	1.12%	5.69%
2008	1.14%	5.88%
2007	1.18%	6.08%
2006	1.24%	6.31%
2005	1.33%	6.55%
2004	1.42%	6.8%
2003	1.51%	7.07%
2002	1.6%	7.36%
2001	1.68%	7.65%
2000	1.75%	7.96%
1999	1.82%	8.28%
1998	1.89%	8.63%
1997	1.93%	9%
1996	1.94%	9.37%
1995	1.92%	9.78%
1994	1.91%	10.2%
1993	1.92%	10.7%
1992	1.92%	11.1%
1991	1.89%	11.6%
1990	1.83%	12.1%
1989	1.79%	12.6%
1988	1.78%	13%
1987	1.8%	13.5%
1986	1.87%	14%
1985	1.97%	14.6%
1984	2.07%	15.1%
1983	2.15%	15.7%
1982	2.22%	16.2%
1981	2.3%	16.8%
1980	2.38%	17.4%
1979	2.49%	18%
1978	2.6%	18.6%
1977	2.72%	19.1%
1976	2.8%	19.7%
1975	2.86%	20.3%
1974	2.91%	20.8%
1973	2.95%	21.4%
1972	3.01%	22%
1971	3.11%	22.5%
1970	3.25%	23.2%
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%	-

The chance that a newborn baby will die before reaching age five is 0.61% in Bulgaria and 3.98% in Comoros. Above is a chart with historical data on under-five mortality rates.