Fertility & birth rates in Iran and Sao Tome and Principe

Fertility rate in Iran vs Sao Tome and Principe by year

Chart Table

Iran

Sao Tome and Principe

1x

Year	Fertility rate
	Iran	Sao Tome
2023	1.7	3.64
2022	1.7	3.7
2021	1.71	3.76
2020	1.7	3.83
2019	1.77	3.9
2018	1.92	3.98
2017	2.02	4.07
2016	2.05	4.2
2015	2.02	4.35
2014	1.98	4.49
2013	1.91	4.58
2012	1.85	4.66
2011	1.79	4.72
2010	1.75	4.77
2009	1.74	4.84
2008	1.74	4.91
2007	1.75	4.96
2006	1.76	4.93
2005	1.76	4.94
2004	1.78	4.96
2003	1.8	5.01
2002	1.84	5.06
2001	1.92	5.1
2000	2	5.16
1999	2.09	5.23
1998	2.19	5.3
1997	2.32	5.4
1996	2.54	5.47
1995	2.85	5.55
1994	3.24	5.56
1993	3.67	5.64
1992	4.1	5.7
1991	4.57	5.77
1990	4.93	5.83
1989	5.17	5.88
1988	5.43	5.94
1987	5.72	5.99
1986	6.01	6.05
1985	6.24	6.1
1984	6.43	6.16
1983	6.53	6.22
1982	6.59	6.28
1981	6.62	6.33
1980	6.63	6.39
1979	6.55	6.43
1978	6.34	6.47
1977	6.18	6.5
1976	6.07	6.52
1975	5.95	6.53
1974	5.97	6.53
1973	6.06	6.53
1972	6.26	6.51
1971	6.55	6.49
1970	6.8	6.47
1969	7.01	6.44
1968	7.12	6.42
1967	7.19	6.39
1966	7.21	6.37
1965	7.22	6.35
1964	7.24	6.33
1963	7.32	6.31
1962	7.4	6.28
1961	7.46	6.26
1960	7.52	6.24

According to the latest available data on birth rates, the fertility rate in Iran was 1.7 children per woman in 2023, compared to 3.64 in Sao Tome and Principe in 2023. The replacement level is considered to be 2.1 children per woman.

Check Iran vs Sao Tome and Principe population clock for a dynamic visualization of the changing population.

Natural population change by year

Chart Table

Iran

Sao Tome and Principe

1x

Year	Natural population change
	Iran	Sao Tome
2023	750,150	5,221
2022	753,525	5,102
2021	645,725	4,954
2020	663,978	4,874
2019	893,063	4,932
2018	1,035,052	4,957
2017	1,140,549	5,007
2016	1,186,949	5,125
2015	1,178,317	5,269
2014	1,158,552	5,381
2013	1,119,533	5,449
2012	1,073,804	5,501
2011	1,023,925	5,445
2010	980,380	5,391
2009	958,322	5,349
2008	940,983	5,297
2007	919,254	5,226
2006	884,529	5,057
2005	837,305	4,897
2004	801,203	4,810
2003	732,600	4,702
2002	752,205	4,591
2001	743,658	4,471
2000	731,203	4,334
1999	723,237	4,221
1998	717,655	4,120
1997	726,574	4,041
1996	784,508	3,993
1995	879,648	3,948
1994	1,008,076	3,860
1993	1,219,658	3,841
1992	1,365,466	3,822
1991	1,495,594	3,801
1990	1,530,434	3,719
1989	1,609,739	3,576
1988	1,614,512	3,544
1987	1,639,644	3,440
1986	1,659,289	3,180
1985	1,661,750	3,242
1984	1,653,051	3,163
1983	1,573,612	3,100
1982	1,514,240	3,047
1981	1,376,830	3,015
1980	1,361,293	2,965
1979	1,294,306	2,893
1978	1,156,974	2,800
1977	1,091,542	2,705
1976	1,013,347	2,608
1975	929,481	2,515
1974	873,369	2,422
1973	831,880	2,329
1972	804,043	2,232
1971	805,830	2,127
1970	794,612	1,980
1969	780,660	1,862
1968	743,992	1,767
1967	727,276	1,693
1966	695,040	1,642
1965	663,029	1,611
1964	635,589	1,600
1963	620,126	1,609
1962	595,538	1,625
1961	594,674	1,657
1960	584,060	1,547

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 +2.26% in Sao Tome and Principe.

For the past 10 years, the annual natural population change has been +1.1% in Iran and +2.4% in Sao Tome and Principe.

Birth rate in Iran vs Sao Tome and Principe by year

Chart Table

Iran

Sao Tome and Principe

Annual births per 1,000 people

1x

Year	Annual births per 1,000 people
	Iran	Sao Tome
2023	13	28.2
2022	13.3	28.3
2021	13.7	28.5
2020	14	28.6
2019	14.9	29.2
2018	16.7	29.8
2017	18	30.6
2016	18.8	31.7
2015	18.9	33
2014	18.8	34.3
2013	18.5	35.4
2012	18.1	36.4
2011	17.7	36.8
2010	17.3	37.3
2009	17.2	37.9
2008	17.1	38.5
2007	17	38.9
2006	16.7	38.9
2005	16.4	39
2004	16.2	39.2
2003	15.9	39.6
2002	15.9	39.8
2001	15.9	40
2000	16	39.7
1999	16.1	39.4
1998	16.2	39.2
1997	16.6	39.2
1996	17.7	39.3
1995	19.5	39.5
1994	22	39.4
1993	25.7	39.8
1992	28.3	40.2
1991	31.2	40.7
1990	33.5	40.7
1989	35.2	40.9
1988	37	40.9
1987	38.8	41
1986	40.7	41
1985	42.4	41
1984	43.9	41.1
1983	44.7	41.2
1982	45.2	41.3
1981	44.2	41.5
1980	45.1	41.6
1979	44.7	41.6
1978	43.4	41.4
1977	42.2	41.3
1976	41.4	41.1
1975	40.3	40.9
1974	40	40.6
1973	40.1	40.3
1972	40.9	39.9
1971	42.4	39.5
1970	43.6	38.8
1969	44.7	38.2
1968	45.3	37.8
1967	45.8	37.7
1966	46	38
1965	46.3	38.6
1964	46.7	39.7
1963	47.7	41.1
1962	48.8	42.7
1961	49.8	44.6
1960	51	44.6

The latest reported birth rate per 1,000 people in 2023 was 13 in Iran and 28.2 in Sao Tome and Principe, compared with 51 and 44.6, respectively, in 1960.

Children 0-14 years as share of population

Chart Table

Iran

Factual

UN forecast

Sao Tome and Principe

Factual

UN forecast

1x

Year	Young
	Iran	Sao Tome
2100	12.1%	19.5%
2099	12.2%	19.6%
2098	12.2%	19.8%
2097	12.3%	19.9%
2096	12.3%	20%
2095	12.4%	20.2%
2094	12.5%	20.3%
2093	12.6%	20.4%
2092	12.6%	20.6%
2091	12.7%	20.7%
2090	12.8%	20.9%
2089	12.8%	21.1%
2088	12.9%	21.2%
2087	12.9%	21.4%
2086	12.9%	21.6%
2085	13%	21.8%
2084	13%	22%
2083	12.9%	22.2%
2082	12.9%	22.4%
2081	12.9%	22.6%
2080	12.9%	22.9%
2079	12.8%	23.1%
2078	12.8%	23.3%
2077	12.8%	23.5%
2076	12.7%	23.7%
2075	12.7%	24%
2074	12.7%	24.2%
2073	12.7%	24.4%
2072	12.7%	24.6%
2071	12.7%	24.8%
2070	12.7%	25%
2069	12.8%	25.2%
2068	12.9%	25.4%
2067	13%	25.6%
2066	13.1%	25.9%
2065	13.2%	26.1%
2064	13.3%	26.3%
2063	13.5%	26.5%
2062	13.6%	26.8%
2061	13.8%	27%
2060	14%	27.3%
2059	14.1%	27.5%
2058	14.3%	27.8%
2057	14.4%	28.1%
2056	14.6%	28.4%
2055	14.7%	28.7%
2054	14.8%	29%
2053	14.9%	29.4%
2052	15%	29.7%
2051	15.1%	30.1%
2050	15.1%	30.4%
2049	15.2%	30.8%
2048	15.2%	31.1%
2047	15.2%	31.5%
2046	15.2%	31.8%
2045	15.3%	32.1%
2044	15.3%	32.5%
2043	15.4%	32.8%
2042	15.4%	33.1%
2041	15.5%	33.4%
2040	15.7%	33.6%
2039	15.8%	33.9%
2038	16%	34.1%
2037	16.3%	34.4%
2036	16.5%	34.6%
2035	16.8%	34.7%
2034	17.2%	34.9%
2033	17.7%	35.1%
2032	18.3%	35.3%
2031	19%	35.5%
2030	19.6%	35.8%
2029	20.2%	36.1%
2028	20.8%	36.6%
2027	21.3%	37%
2026	21.8%	37.3%
2025	22.2%	37.6%
2024	22.4%	37.8%
2023	22.8%	38.3%
2022	23.2%	38.8%
2021	23.6%	39.4%
2020	23.8%	39.9%
2019	23.9%	40.5%
2018	24%	40.9%
2017	23.9%	41.4%
2016	23.8%	41.7%
2015	23.6%	41.9%
2014	23.4%	42%
2013	23.3%	42%
2012	23.3%	42%
2011	23.3%	42%
2010	23.4%	42.1%
2009	23.7%	42.1%
2008	24%	42.1%
2007	24.6%	42%
2006	25.3%	42%
2005	26.2%	42%
2004	27.4%	42.1%
2003	28.7%	42.2%
2002	30.1%	42.3%
2001	31.7%	42.5%
2000	33.6%	42.8%
1999	35.4%	43.4%
1998	37.3%	43.9%
1997	39.1%	44.3%
1996	40.7%	44.7%
1995	42.1%	44.9%
1994	43.2%	45.1%
1993	43.6%	45.2%
1992	43.6%	45.2%
1991	43.9%	45.1%
1990	44.1%	45.1%
1989	44.2%	45%
1988	44%	45%
1987	43.9%	44.9%
1986	43.7%	44.7%
1985	43.5%	44.5%
1984	43.3%	44.4%
1983	43%	44.5%
1982	42.7%	44.5%
1981	42.9%	44.7%
1980	43.3%	44.9%
1979	43.1%	45.1%
1978	43%	45.2%
1977	42.9%	45.3%
1976	43%	45.4%
1975	43.2%	45.5%
1974	43.5%	45.6%
1973	43.8%	45.7%
1972	44.2%	45.9%
1971	44.4%	46.1%
1970	44.6%	46.2%
1969	44.7%	45.8%
1968	44.8%	44.9%
1967	44.8%	44%
1966	44.9%	42.9%
1965	45%	41.6%
1964	45%	40.2%
1963	44.9%	38.5%
1962	44.6%	36.6%
1961	44.1%	34.3%
1960	43.5%	32.9%

Children aged 0-14 make up 22.4% of the population in Iran and 37.8% in Sao Tome and Principe in 2024, compared to 44.1% and 45.1% respectively in 1990.

Demographics of Iran and Sao Tome and Principe compared.

Maternal mortality chart: Iran vs Sao Tome and Principe

Chart Table

Iran

Sao Tome and Principe

1x

Year	Maternal mortality per 100K births
	Iran	Sao Tome
2023	16	75
2022	21	82
2021	51	98
2020	34	92
2019	18	95
2018	19	100
2017	20	110
2016	21	119
2015	22	128
2014	23	138
2013	24	150
2012	25	158
2011	26	164
2010	27	170
2009	28	172
2008	30	174
2007	31	174
2006	32	177
2005	33	181
2004	34	177
2003	37	178
2002	38	179
2001	40	178
2000	43	180
1999	46	179
1998	50	175
1997	55	173
1996	59	171
1995	65	172
1994	71	168
1993	80	166
1992	86	164
1991	94	166
1990	107	164
1989	113	167
1988	126	157
1987	136	161
1986	148	175
1985	160	159

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 75 deaths in Sao Tome and Principe.

Under-five mortality rates

Chart Table

Iran

Sao Tome and Principe

Probability that a newborn baby will die before reaching age five

1x

Year	Under 5 mortality rate
	Iran	Sao Tome
2023	1.18%	1.39%
2022	1.22%	1.46%
2021	1.26%	1.53%
2020	1.3%	1.6%
2019	1.35%	1.7%
2018	1.39%	1.81%
2017	1.45%	1.95%
2016	1.5%	2.11%
2015	1.55%	2.31%
2014	1.61%	2.54%
2013	1.68%	2.77%
2012	1.75%	3.04%
2011	1.84%	3.33%
2010	1.93%	3.63%
2009	2.04%	3.95%
2008	2.17%	4.3%
2007	2.32%	4.68%
2006	2.48%	5.11%
2005	2.65%	5.56%
2004	2.83%	6.05%
2003	3.02%	6.57%
2002	3.22%	7.1%
2001	3.42%	7.66%
2000	3.63%	8.21%
1999	3.83%	8.76%
1998	4.02%	9.26%
1997	4.21%	9.73%
1996	4.4%	10.1%
1995	4.59%	10.4%
1994	4.79%	10.7%
1993	5%	10.8%
1992	5.22%	10.9%
1991	5.48%	10.9%
1990	5.76%	10.8%
1989	6.07%	10.7%
1988	6.42%	10.6%
1987	6.8%	10.4%
1986	7.2%	11.4%
1985	7.64%	9.99%
1984	8.13%	9.77%
1983	8.67%	9.56%
1982	9.3%	9.37%
1981	10%	9.21%
1980	10.8%	9.1%
1979	11.7%	9.02%
1978	12.6%	8.96%
1977	13.5%	8.93%
1976	14.4%	8.89%
1975	15.3%	8.85%
1974	16.2%	8.79%
1973	17.1%	8.73%
1972	18%	8.67%
1971	18.9%	8.63%
1970	-	8.64%
1969	-	8.71%
1968	-	8.85%
1967	-	9.04%
1966	-	9.29%
1965	-	9.56%

The chance that a newborn baby will die before reaching age five is 1.18% in Iran and 1.39% in Sao Tome and Principe. Above is a chart with historical data on under-five mortality rates.