Fertility & birth rates in Comoros and Guinea-Bissau

Fertility rate in Comoros vs Guinea-Bissau by year

Chart Table

Comoros

Guinea-Bissau

1x

Year	Fertility rate
	Comoros	Guinea-Bissau
2023	3.88	3.84
2022	3.94	3.91
2021	4	4
2020	4.07	4.08
2019	4.14	4.15
2018	4.21	4.24
2017	4.28	4.35
2016	4.35	4.52
2015	4.42	4.66
2014	4.49	4.79
2013	4.57	4.93
2012	4.65	5
2011	4.72	5.07
2010	4.76	5.11
2009	4.78	5.18
2008	4.81	5.27
2007	4.86	5.37
2006	4.93	5.41
2005	5.01	5.46
2004	5.07	5.5
2003	5.12	5.58
2002	5.16	5.63
2001	5.2	5.69
2000	5.23	5.79
1999	5.28	5.87
1998	5.39	5.97
1997	5.51	6.06
1996	5.63	6.14
1995	5.73	6.22
1994	5.86	6.3
1993	6.02	6.37
1992	6.19	6.44
1991	6.35	6.47
1990	6.51	6.5
1989	6.65	6.66
1988	6.76	6.69
1987	6.87	6.72
1986	6.95	6.73
1985	7.02	6.74
1984	7.07	6.73
1983	7.11	6.69
1982	7.13	6.64
1981	7.14	6.57
1980	7.15	6.49
1979	7.16	6.4
1978	7.16	6.32
1977	7.15	6.25
1976	7.16	6.19
1975	7.16	6.15
1974	7.16	6.12
1973	7.17	6.1
1972	7.14	6.08
1971	7.12	6.06
1970	7.1	6.04
1969	7.07	6.02
1968	7.05	6.01
1967	7.02	5.99
1966	7	5.98
1965	6.97	5.97
1964	6.94	5.96
1963	6.92	5.95
1962	6.9	5.94
1961	6.85	5.93
1960	6.79	5.92

According to the latest available data on birth rates, the fertility rate in Comoros was 3.88 children per woman in 2023, compared to 3.84 in Guinea-Bissau in 2023. The replacement level is considered to be 2.1 children per woman.

Check Comoros vs Guinea-Bissau population clock for a dynamic visualization of the changing population.

Natural population change by year

Chart Table

Comoros

Guinea-Bissau

1x

Year	Natural population change
	Comoros	Guinea-Bissau
2023	18,247	49,498
2022	18,154	48,920
2021	17,645	47,242
2020	17,906	46,718
2019	17,936	47,196
2018	17,883	46,659
2017	17,798	46,318
2016	17,913	46,814
2015	17,961	46,846
2014	17,876	46,615
2013	17,776	46,472
2012	17,565	45,480
2011	17,313	44,405
2010	16,849	43,067
2009	16,315	41,950
2008	15,804	40,841
2007	15,393	40,288
2006	15,124	38,886
2005	14,810	37,347
2004	14,349	36,495
2003	14,031	35,649
2002	13,760	34,561
2001	13,598	33,461
2000	13,270	32,816
1999	13,161	30,916
1998	13,099	30,390
1997	13,254	29,792
1996	13,390	29,778
1995	13,403	29,142
1994	13,465	27,895
1993	13,667	26,943
1992	13,867	25,747
1991	13,783	24,527
1990	13,610	23,936
1989	13,374	24,286
1988	13,144	23,940
1987	12,869	23,549
1986	12,566	23,301
1985	12,202	23,116
1984	11,830	22,861
1983	11,367	22,542
1982	11,002	22,131
1981	10,569	21,611
1980	10,095	21,024
1979	9,637	19,736
1978	9,189	17,468
1977	8,750	15,484
1976	8,371	13,688
1975	7,752	11,998
1974	7,654	10,321
1973	7,328	8,430
1972	7,019	7,911
1971	6,722	8,183
1970	6,456	7,632
1969	6,189	7,857
1968	5,960	7,289
1967	5,741	6,742
1966	5,601	6,955
1965	5,465	7,789
1964	5,359	8,989
1963	5,249	9,190
1962	5,157	10,662
1961	5,027	10,756
1960	4,886	10,618

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 +2.15% in Comoros and +2.3% in Guinea-Bissau.

For the past 10 years, the annual natural population change has been +2.31% in Comoros and +2.44% in Guinea-Bissau.

Birth rate in Comoros vs Guinea-Bissau by year

Chart Table

Comoros

Guinea-Bissau

Annual births per 1,000 people

1x

Year	Annual births per 1,000 people
	Comoros	Guinea-Bissau
2023	28.7	30
2022	29.1	30.5
2021	29.5	31
2020	30	31.4
2019	30.4	31.8
2018	30.9	32.4
2017	31.4	33
2016	32.1	34.2
2015	32.8	35.2
2014	33.3	36.1
2013	33.9	37.1
2012	34.2	37.6
2011	34.5	38
2010	34.4	38.3
2009	34.3	38.7
2008	34.1	39.3
2007	34.1	40
2006	34.3	40.3
2005	34.4	40.6
2004	34.3	40.8
2003	34.5	41.3
2002	34.7	41.6
2001	35.1	41.8
2000	35.4	42.3
1999	35.7	42.7
1998	36.4	43.2
1997	37.3	43.6
1996	38.1	43.9
1995	38.9	44.3
1994	39.7	44.5
1993	41	44.6
1992	42.3	44.8
1991	43	44.9
1990	43.7	45.3
1989	44.4	46.5
1988	45	46.8
1987	45.6	47.2
1986	46	47.7
1985	46.4	48.1
1984	46.6	48.4
1983	46.7	48.7
1982	46.9	48.8
1981	46.9	48.8
1980	46.8	48.6
1979	46.7	47.8
1978	46.6	45.3
1977	46.4	44
1976	46.5	42.5
1975	46.5	40.8
1974	46.5	38.8
1973	46.7	39.1
1972	46.8	38.6
1971	47	39.5
1970	47.2	38.6
1969	47.4	39.6
1968	47.6	38.8
1967	47.8	38.6
1966	48.3	40
1965	48.5	41.9
1964	48.7	44
1963	49	44.1
1962	49.3	44.6
1961	49.4	45.2
1960	49.4	45.4

The latest reported birth rate per 1,000 people in 2023 was 28.7 in Comoros and 30 in Guinea-Bissau, compared with 49.4 and 45.4, respectively, in 1960.

Children 0-14 years as share of population

Chart Table

Comoros

Factual

UN forecast

Guinea-Bissau

Factual

UN forecast

1x

Year	Young
	Comoros	Guinea-Bissau
2100	19.8%	19.7%
2099	19.9%	19.8%
2098	20.1%	19.9%
2097	20.2%	20%
2096	20.4%	20.2%
2095	20.5%	20.3%
2094	20.7%	20.4%
2093	20.9%	20.5%
2092	21%	20.6%
2091	21.2%	20.8%
2090	21.4%	20.9%
2089	21.5%	21%
2088	21.7%	21.2%
2087	21.9%	21.3%
2086	22.1%	21.5%
2085	22.2%	21.6%
2084	22.4%	21.8%
2083	22.6%	21.9%
2082	22.8%	22.1%
2081	22.9%	22.2%
2080	23.1%	22.4%
2079	23.3%	22.6%
2078	23.5%	22.7%
2077	23.7%	22.9%
2076	23.9%	23.1%
2075	24.1%	23.3%
2074	24.3%	23.4%
2073	24.5%	23.6%
2072	24.7%	23.8%
2071	24.9%	24%
2070	25.1%	24.2%
2069	25.3%	24.4%
2068	25.6%	24.6%
2067	25.8%	24.8%
2066	26.1%	25.1%
2065	26.3%	25.3%
2064	26.5%	25.5%
2063	26.8%	25.7%
2062	27%	26%
2061	27.3%	26.2%
2060	27.6%	26.5%
2059	27.8%	26.7%
2058	28.1%	27%
2057	28.3%	27.3%
2056	28.6%	27.5%
2055	28.8%	27.8%
2054	29.1%	28.1%
2053	29.3%	28.4%
2052	29.5%	28.7%
2051	29.8%	29%
2050	30%	29.3%
2049	30.2%	29.6%
2048	30.5%	29.9%
2047	30.7%	30.2%
2046	30.9%	30.5%
2045	31.1%	30.9%
2044	31.4%	31.2%
2043	31.6%	31.5%
2042	31.8%	31.9%
2041	32.1%	32.2%
2040	32.4%	32.5%
2039	32.6%	32.9%
2038	32.9%	33.2%
2037	33.2%	33.6%
2036	33.5%	33.9%
2035	33.9%	34.3%
2034	34.2%	34.6%
2033	34.5%	35%
2032	34.9%	35.3%
2031	35.2%	35.7%
2030	35.5%	36.2%
2029	35.8%	36.6%
2028	36.1%	37.1%
2027	36.4%	37.6%
2026	36.7%	38.1%
2025	37%	38.6%
2024	37.1%	38.8%
2023	37.4%	39.2%
2022	37.7%	39.7%
2021	38%	40.1%
2020	38.3%	40.5%
2019	38.6%	40.9%
2018	38.9%	41.3%
2017	39.3%	41.7%
2016	39.6%	42%
2015	39.8%	42.2%
2014	40%	42.5%
2013	40.2%	42.7%
2012	40.5%	42.8%
2011	41%	43%
2010	41.6%	43.2%
2009	42.2%	43.3%
2008	42.9%	43.5%
2007	43.6%	43.6%
2006	44.3%	43.8%
2005	45%	43.9%
2004	45.7%	44%
2003	46.3%	44.2%
2002	46.6%	44.3%
2001	46.7%	44.5%
2000	47%	44.7%
1999	47.4%	44.8%
1998	47.7%	45%
1997	47.9%	45.1%
1996	47.9%	45.2%
1995	47.9%	45.3%
1994	47.7%	45.4%
1993	47.5%	45.4%
1992	47.1%	45.5%
1991	46.9%	45.5%
1990	47%	45.7%
1989	47%	45.8%
1988	46.9%	45.9%
1987	46.9%	45.9%
1986	46.9%	46%
1985	46.9%	45.9%
1984	46.8%	45.9%
1983	46.9%	45.7%
1982	46.9%	45.5%
1981	46.9%	45.3%
1980	46.9%	45%
1979	46.9%	45.1%
1978	46.8%	44.8%
1977	46.7%	43.7%
1976	46.6%	42.6%
1975	46.4%	41.8%
1974	46.3%	41.4%
1973	46.2%	41.6%
1972	46%	41.9%
1971	45.9%	41.9%
1970	45.8%	41.9%
1969	45.6%	41.9%
1968	45.3%	41.8%
1967	44.9%	42.1%
1966	44.5%	41.9%
1965	44.1%	41%
1964	43.7%	39.6%
1963	43.1%	38.4%
1962	42.5%	37.7%
1961	42%	37.1%
1960	41.6%	36.9%

Children aged 0-14 make up 37.1% of the population in Comoros and 38.8% in Guinea-Bissau in 2024, compared to 47% and 45.7% respectively in 1990.

Demographics of Comoros and Guinea-Bissau compared.

Maternal mortality chart: Comoros vs Guinea-Bissau

Chart Table

Comoros

Guinea-Bissau

1x

Year	Maternal mortality per 100K births
	Comoros	Guinea-Bissau
2023	179	505
2022	186	539
2021	215	617
2020	198	603
2019	202	598
2018	209	585
2017	219	597
2016	225	617
2015	237	631
2014	247	662
2013	260	707
2012	274	704
2011	291	678
2010	305	698
2009	320	753
2008	334	802
2007	352	792
2006	360	831
2005	373	956
2004	385	980
2003	400	1,069
2002	428	1,141
2001	440	1,222
2000	476	1,295
1999	486	1,461
1998	515	1,465
1997	520	1,642
1996	545	1,539
1995	571	1,556
1994	602	1,644
1993	642	1,613
1992	675	1,633
1991	704	1,663
1990	737	1,709
1989	768	1,698
1988	791	1,759
1987	811	1,796
1986	825	1,825
1985	850	1,851

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 179 deaths per 100,000 live births in Comoros, compared to 505 deaths in Guinea-Bissau.

Under-five mortality rates

Chart Table

Comoros

Guinea-Bissau

Probability that a newborn baby will die before reaching age five

1x

Year	Under 5 mortality rate
	Comoros	Guinea-Bissau
2023	3.98%	6.93%
2022	4.11%	7.16%
2021	4.24%	7.41%
2020	4.35%	7.66%
2019	4.46%	7.91%
2018	4.56%	8.21%
2017	4.66%	8.53%
2016	4.76%	8.84%
2015	4.87%	9.18%
2014	4.97%	9.53%
2013	5.08%	9.93%
2012	5.21%	10.4%
2011	5.36%	10.9%
2010	5.51%	11.4%
2009	5.69%	12%
2008	5.88%	12.6%
2007	6.08%	13.2%
2006	6.31%	13.9%
2005	6.55%	14.5%
2004	6.8%	15.1%
2003	7.07%	15.7%
2002	7.36%	16.3%
2001	7.65%	16.8%
2000	7.96%	17.4%
1999	8.28%	17.9%
1998	8.63%	18.4%
1997	9%	18.9%
1996	9.37%	19.4%
1995	9.78%	19.9%
1994	10.2%	20.4%
1993	10.7%	20.9%
1992	11.1%	21.3%
1991	11.6%	21.8%
1990	12.1%	22.2%
1989	12.6%	22.7%
1988	13%	23.1%
1987	13.5%	23.5%
1986	14%	24%
1985	14.6%	24.4%
1984	15.1%	-
1983	15.7%	-
1982	16.2%	-
1981	16.8%	-
1980	17.4%	-
1979	18%	-
1978	18.6%	-
1977	19.1%	-
1976	19.7%	-
1975	20.3%	-
1974	20.8%	-
1973	21.4%	-
1972	22%	-
1971	22.5%	-
1970	23.2%	-

The chance that a newborn baby will die before reaching age five is 3.98% in Comoros and 6.93% in Guinea-Bissau. Above is a chart with historical data on under-five mortality rates.