Fertility & birth rates in Iran and Sierra Leone

Fertility rate in Iran vs Sierra Leone by year

Chart Table

Iran

Sierra Leone

1x

Year	Fertility rate
	Iran	Sierra Leone
2023	1.7	3.79
2022	1.7	3.88
2021	1.71	3.98
2020	1.7	4.08
2019	1.77	4.19
2018	1.92	4.29
2017	2.02	4.39
2016	2.05	4.47
2015	2.02	4.55
2014	1.98	4.7
2013	1.91	4.87
2012	1.85	5.06
2011	1.79	5.21
2010	1.75	5.33
2009	1.74	5.45
2008	1.74	5.56
2007	1.75	5.64
2006	1.76	5.74
2005	1.76	5.81
2004	1.78	5.92
2003	1.8	6.09
2002	1.84	6.23
2001	1.92	6.31
2000	2	6.36
1999	2.09	6.42
1998	2.19	6.5
1997	2.32	6.53
1996	2.54	6.55
1995	2.85	6.56
1994	3.24	6.56
1993	3.67	6.57
1992	4.1	6.56
1991	4.57	6.55
1990	4.93	6.57
1989	5.17	6.57
1988	5.43	6.59
1987	5.72	6.61
1986	6.01	6.6
1985	6.24	6.59
1984	6.43	6.59
1983	6.53	6.57
1982	6.59	6.56
1981	6.62	6.55
1980	6.63	6.56
1979	6.55	6.58
1978	6.34	6.59
1977	6.18	6.57
1976	6.07	6.55
1975	5.95	6.55
1974	5.97	6.53
1973	6.06	6.47
1972	6.26	6.45
1971	6.55	6.43
1970	6.8	6.41
1969	7.01	6.39
1968	7.12	6.39
1967	7.19	6.38
1966	7.21	6.35
1965	7.22	6.31
1964	7.24	6.29
1963	7.32	6.26
1962	7.4	6.22
1961	7.46	6.21
1960	7.52	6.18

According to the latest available data on birth rates, the fertility rate in Iran was 1.7 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 Iran vs Sierra Leone population clock for a dynamic visualization of the changing population.

Natural population change by year

Chart Table

Iran

Sierra Leone

1x

Year	Natural population change
	Iran	Sierra Leone
2023	750,150	188,788
2022	753,525	186,625
2021	645,725	183,326
2020	663,978	181,015
2019	893,063	181,068
2018	1,035,052	178,772
2017	1,140,549	173,259
2016	1,186,949	168,784
2015	1,178,317	162,275
2014	1,158,552	160,137
2013	1,119,533	161,265
2012	1,073,804	160,915
2011	1,023,925	158,858
2010	980,380	155,338
2009	958,322	152,669
2008	940,983	149,855
2007	919,254	145,740
2006	884,529	144,127
2005	837,305	137,234
2004	801,203	132,661
2003	732,600	130,312
2002	752,205	126,429
2001	743,658	116,647
2000	731,203	110,754
1999	723,237	102,295
1998	717,655	103,906
1997	726,574	105,433
1996	784,508	104,140
1995	879,648	100,885
1994	1,008,076	101,486
1993	1,219,658	103,317
1992	1,365,466	103,251
1991	1,495,594	105,477
1990	1,530,434	100,778
1989	1,609,739	98,298
1988	1,614,512	96,344
1987	1,639,644	94,235
1986	1,659,289	90,902
1985	1,661,750	88,869
1984	1,653,051	87,072
1983	1,573,612	84,628
1982	1,514,240	82,457
1981	1,376,830	80,111
1980	1,361,293	77,932
1979	1,294,306	75,992
1978	1,156,974	74,130
1977	1,091,542	71,663
1976	1,013,347	69,506
1975	929,481	67,560
1974	873,369	65,357
1973	831,880	62,443
1972	804,043	60,279
1971	805,830	58,484
1970	794,612	56,513
1969	780,660	54,768
1968	743,992	53,126
1967	727,276	51,734
1966	695,040	49,486
1965	663,029	47,223
1964	635,589	45,487
1963	620,126	43,569
1962	595,538	41,603
1961	594,674	40,022
1960	584,060	38,192

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 +0.83% in Iran and +2.23% in Sierra Leone.

For the past 10 years, the annual natural population change has been +1.1% in Iran and +2.31% in Sierra Leone.

Birth rate in Iran vs Sierra Leone by year

Chart Table

Iran

Sierra Leone

Annual births per 1,000 people

1x

Year	Annual births per 1,000 people
	Iran	Sierra Leone
2023	13	30.6
2022	13.3	31.1
2021	13.7	31.6
2020	14	32.2
2019	14.9	32.8
2018	16.7	33.3
2017	18	33.8
2016	18.8	34.2
2015	18.9	34.7
2014	18.8	35.6
2013	18.5	36.6
2012	18.1	37.8
2011	17.7	38.5
2010	17.3	39.1
2009	17.2	39.9
2008	17.1	40.6
2007	17	41.1
2006	16.7	41.8
2005	16.4	42
2004	16.2	42.5
2003	15.9	43.5
2002	15.9	44.3
2001	15.9	44
2000	16	45
1999	16.1	46.1
1998	16.2	46.3
1997	16.6	46.3
1996	17.7	46.5
1995	19.5	46.8
1994	22	46.8
1993	25.7	46.9
1992	28.3	47
1991	31.2	47.5
1990	33.5	45.5
1989	35.2	46.3
1988	37	46.4
1987	38.8	46.6
1986	40.7	46.6
1985	42.4	46.7
1984	43.9	46.8
1983	44.7	46.7
1982	45.2	46.8
1981	44.2	46.8
1980	45.1	46.8
1979	44.7	47
1978	43.4	47.2
1977	42.2	47.1
1976	41.4	47.2
1975	40.3	47.3
1974	40	47.4
1973	40.1	47.2
1972	40.9	47.2
1971	42.4	47.3
1970	43.6	47.4
1969	44.7	47.5
1968	45.3	47.7
1967	45.8	47.9
1966	46	48
1965	46.3	48
1964	46.7	48.2
1963	47.7	48.2
1962	48.8	48.1
1961	49.8	48.1
1960	51	48

The latest reported birth rate per 1,000 people in 2023 was 13 in Iran and 30.6 in Sierra Leone, compared with 51 and 48, respectively, in 1960.

Children 0-14 years as share of population

Chart Table

Iran

Factual

UN forecast

Sierra Leone

Factual

UN forecast

1x

Year	Young
	Iran	Sierra Leone
2100	12.1%	19%
2099	12.2%	19%
2098	12.2%	19.1%
2097	12.3%	19.2%
2096	12.3%	19.3%
2095	12.4%	19.5%
2094	12.5%	19.6%
2093	12.6%	19.7%
2092	12.6%	19.8%
2091	12.7%	19.9%
2090	12.8%	20%
2089	12.8%	20.1%
2088	12.9%	20.3%
2087	12.9%	20.4%
2086	12.9%	20.5%
2085	13%	20.7%
2084	13%	20.8%
2083	12.9%	20.9%
2082	12.9%	21.1%
2081	12.9%	21.2%
2080	12.9%	21.4%
2079	12.8%	21.6%
2078	12.8%	21.7%
2077	12.8%	21.9%
2076	12.7%	22.1%
2075	12.7%	22.2%
2074	12.7%	22.4%
2073	12.7%	22.6%
2072	12.7%	22.8%
2071	12.7%	23%
2070	12.7%	23.2%
2069	12.8%	23.4%
2068	12.9%	23.6%
2067	13%	23.8%
2066	13.1%	24%
2065	13.2%	24.3%
2064	13.3%	24.5%
2063	13.5%	24.7%
2062	13.6%	25%
2061	13.8%	25.2%
2060	14%	25.5%
2059	14.1%	25.7%
2058	14.3%	26%
2057	14.4%	26.3%
2056	14.6%	26.6%
2055	14.7%	26.9%
2054	14.8%	27.1%
2053	14.9%	27.4%
2052	15%	27.7%
2051	15.1%	28.1%
2050	15.1%	28.4%
2049	15.2%	28.7%
2048	15.2%	29%
2047	15.2%	29.3%
2046	15.2%	29.7%
2045	15.3%	30%
2044	15.3%	30.3%
2043	15.4%	30.7%
2042	15.4%	31.1%
2041	15.5%	31.4%
2040	15.7%	31.8%
2039	15.8%	32.2%
2038	16%	32.6%
2037	16.3%	33%
2036	16.5%	33.4%
2035	16.8%	33.8%
2034	17.2%	34.2%
2033	17.7%	34.6%
2032	18.3%	35%
2031	19%	35.4%
2030	19.6%	35.7%
2029	20.2%	36.1%
2028	20.8%	36.5%
2027	21.3%	37%
2026	21.8%	37.4%
2025	22.2%	37.9%
2024	22.4%	38.1%
2023	22.8%	38.5%
2022	23.2%	39%
2021	23.6%	39.4%
2020	23.8%	39.8%
2019	23.9%	40.2%
2018	24%	40.6%
2017	23.9%	41%
2016	23.8%	41.4%
2015	23.6%	41.8%
2014	23.4%	42.2%
2013	23.3%	42.5%
2012	23.3%	42.8%
2011	23.3%	43%
2010	23.4%	43.2%
2009	23.7%	43.4%
2008	24%	43.5%
2007	24.6%	43.6%
2006	25.3%	43.7%
2005	26.2%	43.8%
2004	27.4%	43.9%
2003	28.7%	43.9%
2002	30.1%	43.9%
2001	31.7%	43.9%
2000	33.6%	43.8%
1999	35.4%	43.7%
1998	37.3%	43.6%
1997	39.1%	43.5%
1996	40.7%	43.5%
1995	42.1%	43.4%
1994	43.2%	43.3%
1993	43.6%	43.2%
1992	43.6%	43.1%
1991	43.9%	43%
1990	44.1%	42.9%
1989	44.2%	42.9%
1988	44%	42.8%
1987	43.9%	42.7%
1986	43.7%	42.6%
1985	43.5%	42.5%
1984	43.3%	42.3%
1983	43%	42.2%
1982	42.7%	42.1%
1981	42.9%	42%
1980	43.3%	41.9%
1979	43.1%	41.8%
1978	43%	41.7%
1977	42.9%	41.6%
1976	43%	41.4%
1975	43.2%	41.3%
1974	43.5%	41.1%
1973	43.8%	40.9%
1972	44.2%	40.7%
1971	44.4%	40.6%
1970	44.6%	40.3%
1969	44.7%	40.1%
1968	44.8%	39.9%
1967	44.8%	39.6%
1966	44.9%	39.4%
1965	45%	39.1%
1964	45%	38.8%
1963	44.9%	38.5%
1962	44.6%	38.3%
1961	44.1%	38.3%
1960	43.5%	38.2%

Children aged 0-14 make up 22.4% of the population in Iran and 38.1% in Sierra Leone in 2024, compared to 44.1% and 42.9% respectively in 1990.

Demographics of Iran and Sierra Leone compared.

Maternal mortality chart: Iran vs Sierra Leone

Chart Table

Iran

Sierra Leone

1x

Year	Maternal mortality per 100K births
	Iran	Sierra Leone
2023	16	354
2022	21	370
2021	51	403
2020	34	422
2019	18	464
2018	19	491
2017	20	578
2016	21	633
2015	22	730
2014	23	821
2013	24	842
2012	25	915
2011	26	967
2010	27	1,018
2009	28	1,054
2008	30	1,093
2007	31	1,132
2006	32	1,168
2005	33	1,294
2004	34	1,366
2003	37	1,433
2002	38	1,492
2001	40	1,518
2000	43	1,603
1999	46	1,731
1998	50	1,753
1997	55	1,721
1996	59	1,726
1995	65	1,777
1994	71	1,755
1993	80	1,696
1992	86	1,681
1991	94	1,699
1990	107	1,572
1989	113	1,575
1988	126	1,549
1987	136	1,533
1986	148	1,530
1985	160	1,506

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 16 deaths per 100,000 live births in Iran, compared to 354 deaths in Sierra Leone.

Under-five mortality rates

Chart Table

Iran

Sierra Leone

Probability that a newborn baby will die before reaching age five

1x

Year	Under 5 mortality rate
	Iran	Sierra Leone
2023	1.18%	9.43%
2022	1.22%	9.77%
2021	1.26%	10.1%
2020	1.3%	10.5%
2019	1.35%	10.9%
2018	1.39%	11.3%
2017	1.45%	11.8%
2016	1.5%	12.3%
2015	1.55%	13.8%
2014	1.61%	13.7%
2013	1.68%	13.9%
2012	1.75%	14.5%
2011	1.84%	15.2%
2010	1.93%	15.9%
2009	2.04%	16.6%
2008	2.17%	17.3%
2007	2.32%	18.1%
2006	2.48%	18.8%
2005	2.65%	19.4%
2004	2.83%	20.1%
2003	3.02%	20.7%
2002	3.22%	21.3%
2001	3.42%	21.8%
2000	3.63%	22.4%
1999	3.83%	22.9%
1998	4.02%	23.4%
1997	4.21%	23.9%
1996	4.4%	24.3%
1995	4.59%	24.7%
1994	4.79%	25%
1993	5%	25.3%
1992	5.22%	25.5%
1991	5.48%	25.7%
1990	5.76%	25.9%
1989	6.07%	26.2%
1988	6.42%	26.4%
1987	6.8%	26.6%
1986	7.2%	26.9%
1985	7.64%	27.2%
1984	8.13%	27.5%
1983	8.67%	27.8%
1982	9.3%	28.1%
1981	10%	28.5%
1980	10.8%	28.9%
1979	11.7%	29.2%
1978	12.6%	29.6%
1977	13.5%	30%
1976	14.4%	30.5%
1975	15.3%	30.9%
1974	16.2%	31.4%
1973	17.1%	31.9%
1972	18%	32.3%
1971	18.9%	32.9%
1970	-	33.4%
1969	-	33.9%
1968	-	34.5%
1967	-	35%
1966	-	35.6%
1965	-	36.2%
1964	-	36.8%
1963	-	37.4%
1962	-	38%
1961	-	38.5%
1960	-	39.1%

The chance that a newborn baby will die before reaching age five is 1.18% in Iran and 9.43% in Sierra Leone. Above is a chart with historical data on under-five mortality rates.