Fertility & birth rates in Comoros and Sierra Leone

Fertility rate in Comoros vs Sierra Leone chart

According to the latest available data on birth rates, the fertility rate in Comoros was 3.88 children per woman in 2023, compared to 3.79 in Sierra Leone in 2023. The replacement level is considered to be 2.1 children per woman.

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

The chart below showcases historical changes in the birth rates.

Table

Year	Fertility rate
	Comoros	Sierra Leone
1960	6.79	6.18
1961	6.85	6.21
1962	6.9	6.22
1963	6.92	6.26
1964	6.94	6.29
1965	6.97	6.31
1966	7	6.35
1967	7.02	6.38
1968	7.05	6.39
1969	7.07	6.39
1970	7.1	6.41
1971	7.12	6.43
1972	7.14	6.45
1973	7.17	6.47
1974	7.16	6.53
1975	7.16	6.55
1976	7.16	6.55
1977	7.15	6.57
1978	7.16	6.59
1979	7.16	6.58
1980	7.15	6.56
1981	7.14	6.55
1982	7.13	6.56
1983	7.11	6.57
1984	7.07	6.59
1985	7.02	6.59
1986	6.95	6.6
1987	6.87	6.61
1988	6.76	6.59
1989	6.65	6.57
1990	6.51	6.57
1991	6.35	6.55
1992	6.19	6.56
1993	6.02	6.57
1994	5.86	6.56
1995	5.73	6.56
1996	5.63	6.55
1997	5.51	6.53
1998	5.39	6.5
1999	5.28	6.42
2000	5.23	6.36
2001	5.2	6.31
2002	5.16	6.23
2003	5.12	6.09
2004	5.07	5.92
2005	5.01	5.81
2006	4.93	5.74
2007	4.86	5.64
2008	4.81	5.56
2009	4.78	5.45
2010	4.76	5.33
2011	4.72	5.21
2012	4.65	5.06
2013	4.57	4.87
2014	4.49	4.7
2015	4.42	4.55
2016	4.35	4.47
2017	4.28	4.39
2018	4.21	4.29
2019	4.14	4.19
2020	4.07	4.08
2021	4	3.98
2022	3.94	3.88
2023	3.88	3.79
2024	3.82	3.7
2025	3.76	3.61
2026	3.71	3.53
2027	3.65	3.47
2028	3.6	3.37
2029	3.55	3.3
2030	3.5	3.23
2031	3.44	3.18
2032	3.4	3.12
2033	3.36	3.07
2034	3.31	3.02
2035	3.27	2.97
2036	3.23	2.92
2037	3.19	2.88
2038	3.15	2.84
2039	3.11	2.79
2040	3.07	2.76
2041	3.04	2.72
2042	3	2.68
2043	2.97	2.65
2044	2.93	2.62
2045	2.9	2.58
2046	2.87	2.55
2047	2.84	2.53
2048	2.81	2.5
2049	2.78	2.47
2050	2.76	2.45

Children 0-14 years as share of population

Table

Year	Share of people 0-14 years old
	Comoros	Sierra Leone
1960	41.6%	38.2%
1961	42%	38.3%
1962	42.5%	38.3%
1963	43.1%	38.5%
1964	43.7%	38.8%
1965	44.1%	39.1%
1966	44.5%	39.4%
1967	44.9%	39.6%
1968	45.3%	39.9%
1969	45.6%	40.1%
1970	45.8%	40.3%
1971	45.9%	40.6%
1972	46%	40.7%
1973	46.2%	40.9%
1974	46.3%	41.1%
1975	46.4%	41.3%
1976	46.6%	41.4%
1977	46.7%	41.6%
1978	46.8%	41.7%
1979	46.9%	41.8%
1980	46.9%	41.9%
1981	46.9%	42%
1982	46.9%	42.1%
1983	46.9%	42.2%
1984	46.8%	42.3%
1985	46.9%	42.5%
1986	46.9%	42.6%
1987	46.9%	42.7%
1988	46.9%	42.8%
1989	47%	42.9%
1990	47%	42.9%
1991	46.9%	43%
1992	47.1%	43.1%
1993	47.5%	43.2%
1994	47.7%	43.3%
1995	47.9%	43.4%
1996	47.9%	43.5%
1997	47.9%	43.5%
1998	47.7%	43.6%
1999	47.4%	43.7%
2000	47%	43.8%
2001	46.7%	43.9%
2002	46.6%	43.9%
2003	46.3%	43.9%
2004	45.7%	43.9%
2005	45%	43.8%
2006	44.3%	43.7%
2007	43.6%	43.6%
2008	42.9%	43.5%
2009	42.2%	43.4%
2010	41.6%	43.2%
2011	41%	43%
2012	40.5%	42.8%
2013	40.2%	42.5%
2014	40%	42.2%
2015	39.8%	41.8%
2016	39.6%	41.4%
2017	39.3%	41%
2018	38.9%	40.6%
2019	38.6%	40.2%
2020	38.3%	39.8%
2021	38%	39.4%
2022	37.7%	39%
2023	37.4%	38.5%
2024	37.1%	38.1%
2025	36.9%	37.7%
2026	36.6%	37.2%
2027	36.3%	36.8%
2028	36%	36.3%
2029	35.7%	35.9%
2030	35.3%	35.5%
2031	35%	35.2%
2032	34.7%	34.8%
2033	34.4%	34.4%
2034	34%	34%
2035	33.7%	33.6%
2036	33.4%	33.2%
2037	33.1%	32.8%
2038	32.8%	32.4%
2039	32.5%	32%
2040	32.2%	31.6%
2041	32%	31.2%
2042	31.7%	30.9%
2043	31.5%	30.5%
2044	31.2%	30.2%
2045	31%	29.8%
2046	30.8%	29.5%
2047	30.6%	29.2%
2048	30.3%	28.8%
2049	30.1%	28.5%
2050	29.9%	28.2%

Children aged 0-14 make up 37.1% of the population in Comoros and 38.1% in Sierra Leone in 2024, compared to 47% and 42.9% respectively in 1990.

Demographics of Comoros and Sierra Leone compared.

Natural population change in Comoros vs Sierra Leone by year

For the past 10 years, the annual natural population change (excluding migration) has been +2.31% in Comoros and +2.31% in Sierra Leone. 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
	Comoros	Sierra Leone
1960	4,886	38,192
1961	5,027	40,022
1962	5,157	41,603
1963	5,249	43,569
1964	5,359	45,487
1965	5,465	47,223
1966	5,601	49,486
1967	5,741	51,734
1968	5,960	53,126
1969	6,189	54,768
1970	6,456	56,513
1971	6,722	58,484
1972	7,019	60,279
1973	7,328	62,443
1974	7,654	65,357
1975	7,752	67,560
1976	8,371	69,506
1977	8,750	71,663
1978	9,189	74,130
1979	9,637	75,992
1980	10,095	77,932
1981	10,569	80,111
1982	11,002	82,457
1983	11,367	84,628
1984	11,830	87,072
1985	12,202	88,869
1986	12,566	90,902
1987	12,869	94,235
1988	13,144	96,344
1989	13,374	98,298
1990	13,610	100,778
1991	13,783	105,477
1992	13,867	103,251
1993	13,667	103,317
1994	13,465	101,486
1995	13,403	100,885
1996	13,390	104,140
1997	13,254	105,433
1998	13,099	103,906
1999	13,161	102,295
2000	13,270	110,754
2001	13,598	116,647
2002	13,760	126,429
2003	14,031	130,312
2004	14,349	132,661
2005	14,810	137,234
2006	15,124	144,127
2007	15,393	145,740
2008	15,804	149,855
2009	16,315	152,669
2010	16,849	155,338
2011	17,313	158,858
2012	17,565	160,915
2013	17,776	161,265
2014	17,876	160,137
2015	17,961	162,275
2016	17,913	168,784
2017	17,798	173,259
2018	17,883	178,772
2019	17,936	181,068
2020	17,906	181,015
2021	17,645	183,326
2022	18,154	186,625
2023	18,247	188,788

Maternal mortality chart: Comoros vs Sierra Leone

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 354 deaths in Sierra Leone.

Table

Year	Maternal mortality per 100K births
	Comoros	Sierra Leone
1985	850	1,506
1986	825	1,530
1987	811	1,533
1988	791	1,549
1989	768	1,575
1990	737	1,572
1991	704	1,699
1992	675	1,681
1993	642	1,696
1994	602	1,755
1995	571	1,777
1996	545	1,726
1997	520	1,721
1998	515	1,753
1999	486	1,731
2000	476	1,603
2001	440	1,518
2002	428	1,492
2003	400	1,433
2004	385	1,366
2005	373	1,294
2006	360	1,168
2007	352	1,132
2008	334	1,093
2009	320	1,054
2010	305	1,018
2011	291	967
2012	274	915
2013	260	842
2014	247	821
2015	237	730
2016	225	633
2017	219	578
2018	209	491
2019	202	464
2020	198	422
2021	215	403
2022	186	370
2023	179	354

Under-five mortality rates

The chance that a newborn baby will die before reaching age five is 3.98% in Comoros and 9.43% in Sierra Leone. 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
	Comoros	Sierra Leone
1960	-	39.1%
1961	-	38.5%
1962	-	38%
1963	-	37.4%
1964	-	36.8%
1965	-	36.2%
1966	-	35.6%
1967	-	35%
1968	-	34.5%
1969	-	33.9%
1970	23.2%	33.4%
1971	22.5%	32.9%
1972	22%	32.3%
1973	21.4%	31.9%
1974	20.8%	31.4%
1975	20.3%	30.9%
1976	19.7%	30.5%
1977	19.1%	30%
1978	18.6%	29.6%
1979	18%	29.2%
1980	17.4%	28.9%
1981	16.8%	28.5%
1982	16.2%	28.1%
1983	15.7%	27.8%
1984	15.1%	27.5%
1985	14.6%	27.2%
1986	14%	26.9%
1987	13.5%	26.6%
1988	13%	26.4%
1989	12.6%	26.2%
1990	12.1%	25.9%
1991	11.6%	25.7%
1992	11.1%	25.5%
1993	10.7%	25.3%
1994	10.2%	25%
1995	9.78%	24.7%
1996	9.37%	24.3%
1997	9%	23.9%
1998	8.63%	23.4%
1999	8.28%	22.9%
2000	7.96%	22.4%
2001	7.65%	21.8%
2002	7.36%	21.3%
2003	7.07%	20.7%
2004	6.8%	20.1%
2005	6.55%	19.4%
2006	6.31%	18.8%
2007	6.08%	18.1%
2008	5.88%	17.3%
2009	5.69%	16.6%
2010	5.51%	15.9%
2011	5.36%	15.2%
2012	5.21%	14.5%
2013	5.08%	13.9%
2014	4.97%	13.7%
2015	4.87%	13.8%
2016	4.76%	12.3%
2017	4.66%	11.8%
2018	4.56%	11.3%
2019	4.46%	10.9%
2020	4.35%	10.5%
2021	4.24%	10.1%
2022	4.11%	9.77%
2023	3.98%	9.43%