Fertility & birth rates in Sierra Leone and Thailand

Fertility rate in Sierra Leone vs Thailand chart

According to the latest available data on birth rates, the fertility rate in Sierra Leone was 3.79 children per woman in 2023, compared to 1.21 in Thailand in 2023. The replacement level is considered to be 2.1 children per woman.

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

The chart below showcases historical changes in the birth rates.

Table

Year	Fertility rate
	Sierra Leone	Thailand
1960	6.18	6.33
1961	6.21	6.32
1962	6.22	6.33
1963	6.26	6.34
1964	6.29	6.31
1965	6.31	6.26
1966	6.35	6.18
1967	6.38	6.08
1968	6.39	5.93
1969	6.39	5.7
1970	6.41	5.45
1971	6.43	5.25
1972	6.45	5.08
1973	6.47	4.85
1974	6.53	4.6
1975	6.55	4.36
1976	6.55	4.12
1977	6.57	3.87
1978	6.59	3.62
1979	6.58	3.45
1980	6.56	3.29
1981	6.55	3.13
1982	6.56	2.94
1983	6.57	2.76
1984	6.59	2.58
1985	6.59	2.45
1986	6.6	2.36
1987	6.61	2.26
1988	6.59	2.17
1989	6.57	2.14
1990	6.57	2.07
1991	6.55	2.04
1992	6.56	2.01
1993	6.57	1.97
1994	6.56	1.93
1995	6.56	1.89
1996	6.55	1.87
1997	6.53	1.85
1998	6.5	1.82
1999	6.42	1.77
2000	6.36	1.73
2001	6.31	1.71
2002	6.23	1.69
2003	6.09	1.67
2004	5.92	1.67
2005	5.81	1.64
2006	5.74	1.63
2007	5.64	1.62
2008	5.56	1.59
2009	5.45	1.57
2010	5.33	1.56
2011	5.21	1.57
2012	5.06	1.56
2013	4.87	1.53
2014	4.7	1.48
2015	4.55	1.45
2016	4.47	1.4
2017	4.39	1.36
2018	4.29	1.32
2019	4.19	1.29
2020	4.08	1.26
2021	3.98	1.23
2022	3.88	1.22
2023	3.79	1.21
2024	3.7	1.2
2025	3.61	1.19
2026	3.53	1.19
2027	3.47	1.19
2028	3.37	1.19
2029	3.3	1.19
2030	3.23	1.2
2031	3.18	1.2
2032	3.12	1.21
2033	3.07	1.21
2034	3.02	1.22
2035	2.97	1.22
2036	2.92	1.23
2037	2.88	1.23
2038	2.84	1.24
2039	2.79	1.24
2040	2.76	1.25
2041	2.72	1.25
2042	2.68	1.26
2043	2.65	1.26
2044	2.62	1.26
2045	2.58	1.27
2046	2.55	1.27
2047	2.53	1.28
2048	2.5	1.28
2049	2.47	1.28
2050	2.45	1.29

Children 0-14 years as share of population

Table

Year	Share of people 0-14 years old
	Sierra Leone	Thailand
1960	38.2%	44.3%
1961	38.3%	44.6%
1962	38.3%	44.8%
1963	38.5%	45.1%
1964	38.8%	45.3%
1965	39.1%	45.4%
1966	39.4%	45.4%
1967	39.6%	45.3%
1968	39.9%	45.2%
1969	40.1%	45%
1970	40.3%	44.8%
1971	40.6%	44.4%
1972	40.7%	44%
1973	40.9%	43.5%
1974	41.1%	43%
1975	41.3%	42.4%
1976	41.4%	41.8%
1977	41.6%	41.1%
1978	41.7%	40.3%
1979	41.8%	39.5%
1980	41.9%	38.7%
1981	42%	37.8%
1982	42.1%	37%
1983	42.2%	36%
1984	42.3%	35.1%
1985	42.5%	34.1%
1986	42.6%	33.2%
1987	42.7%	32.4%
1988	42.8%	31.5%
1989	42.9%	30.7%
1990	42.9%	30%
1991	43%	29.2%
1992	43.1%	28.5%
1993	43.2%	28%
1994	43.3%	27.4%
1995	43.4%	26.9%
1996	43.5%	26.4%
1997	43.5%	25.9%
1998	43.6%	25.4%
1999	43.7%	24.9%
2000	43.8%	24.4%
2001	43.9%	23.9%
2002	43.9%	23.4%
2003	43.9%	23%
2004	43.9%	22.6%
2005	43.8%	22.2%
2006	43.7%	21.7%
2007	43.6%	21.3%
2008	43.5%	20.9%
2009	43.4%	20.6%
2010	43.2%	20.1%
2011	43%	19.7%
2012	42.8%	19.2%
2013	42.5%	18.8%
2014	42.2%	18.5%
2015	41.8%	18.1%
2016	41.4%	17.7%
2017	41%	17.3%
2018	40.6%	16.9%
2019	40.2%	16.6%
2020	39.8%	16.2%
2021	39.4%	15.8%
2022	39%	15.4%
2023	38.5%	15.1%
2024	38.1%	14.7%
2025	37.7%	14.4%
2026	37.2%	14.1%
2027	36.8%	13.7%
2028	36.3%	13.4%
2029	35.9%	13.1%
2030	35.5%	12.9%
2031	35.2%	12.7%
2032	34.8%	12.5%
2033	34.4%	12.3%
2034	34%	12.2%
2035	33.6%	12.1%
2036	33.2%	12%
2037	32.8%	11.9%
2038	32.4%	11.9%
2039	32%	11.8%
2040	31.6%	11.8%
2041	31.2%	11.8%
2042	30.9%	11.8%
2043	30.5%	11.7%
2044	30.2%	11.7%
2045	29.8%	11.7%
2046	29.5%	11.7%
2047	29.2%	11.6%
2048	28.8%	11.6%
2049	28.5%	11.6%
2050	28.2%	11.5%

Children aged 0-14 make up 38.1% of the population in Sierra Leone and 14.7% in Thailand in 2024, compared to 42.9% and 30% respectively in 1990.

Demographics of Sierra Leone and Thailand compared.

Natural population change in Sierra Leone vs Thailand by year

For the past 10 years, the annual natural population change (excluding migration) has been +2.31% in Sierra Leone and +0.18% in Thailand. 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
	Sierra Leone	Thailand
1960	38,192	774,190
1961	40,022	801,140
1962	41,603	828,741
1963	43,569	860,728
1964	45,487	885,137
1965	47,223	909,000
1966	49,486	929,469
1967	51,734	944,980
1968	53,126	953,806
1969	54,768	948,314
1970	56,513	937,116
1971	58,484	936,215
1972	60,279	940,420
1973	62,443	933,540
1974	65,357	923,151
1975	67,560	911,980
1976	69,506	894,072
1977	71,663	871,232
1978	74,130	847,799
1979	75,992	843,434
1980	77,932	845,575
1981	80,111	839,297
1982	82,457	817,951
1983	84,628	794,239
1984	87,072	779,856
1985	88,869	776,935
1986	90,902	783,430
1987	94,235	774,498
1988	96,344	765,252
1989	98,298	774,563
1990	100,778	760,808
1991	105,477	760,508
1992	103,251	754,999
1993	103,317	737,696
1994	101,486	712,589
1995	100,885	682,703
1996	104,140	661,397
1997	105,433	644,834
1998	103,906	617,318
1999	102,295	578,073
2000	110,754	543,884
2001	116,647	524,230
2002	126,429	504,299
2003	130,312	488,003
2004	132,661	466,542
2005	137,234	456,378
2006	144,127	441,211
2007	145,740	425,362
2008	149,855	401,730
2009	152,669	382,636
2010	155,338	370,466
2011	158,858	365,670
2012	160,915	351,485
2013	161,265	325,059
2014	160,137	294,628
2015	162,275	266,362
2016	168,784	226,255
2017	173,259	194,695
2018	178,772	159,383
2019	181,068	116,867
2020	181,015	84,107
2021	183,326	57,382
2022	186,625	-61,046
2023	188,788	-46,105

Maternal mortality chart: Sierra Leone vs Thailand

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 354 deaths per 100,000 live births in Sierra Leone, compared to 34 deaths in Thailand.

Table

Year	Maternal mortality per 100K births
	Sierra Leone	Thailand
1985	1,506	88
1986	1,530	78
1987	1,533	72
1988	1,549	67
1989	1,575	64
1990	1,572	60
1991	1,699	59
1992	1,681	58
1993	1,696	57
1994	1,755	54
1995	1,777	52
1996	1,726	49
1997	1,721	48
1998	1,753	47
1999	1,731	48
2000	1,603	49
2001	1,518	47
2002	1,492	44
2003	1,433	42
2004	1,366	44
2005	1,294	40
2006	1,168	38
2007	1,132	38
2008	1,093	37
2009	1,054	37
2010	1,018	37
2011	967	37
2012	915	36
2013	842	35
2014	821	34
2015	730	34
2016	633	34
2017	578	34
2018	491	34
2019	464	34
2020	422	36
2021	403	38
2022	370	112
2023	354	34

Under-five mortality rates

The chance that a newborn baby will die before reaching age five is 9.43% in Sierra Leone and 0.92% in Thailand. 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
	Sierra Leone	Thailand
1960	39.1%	14.7%
1961	38.5%	14.2%
1962	38%	13.7%
1963	37.4%	13.2%
1964	36.8%	12.8%
1965	36.2%	12.3%
1966	35.6%	11.8%
1967	35%	11.4%
1968	34.5%	10.9%
1969	33.9%	10.4%
1970	33.4%	9.95%
1971	32.9%	9.47%
1972	32.3%	9.01%
1973	31.9%	8.56%
1974	31.4%	8.14%
1975	30.9%	7.73%
1976	30.5%	7.35%
1977	30%	7%
1978	29.6%	6.67%
1979	29.2%	6.36%
1980	28.9%	6.07%
1981	28.5%	5.79%
1982	28.1%	5.53%
1983	27.8%	5.28%
1984	27.5%	5.03%
1985	27.2%	4.8%
1986	26.9%	4.57%
1987	26.6%	4.34%
1988	26.4%	4.12%
1989	26.2%	3.91%
1990	25.9%	3.69%
1991	25.7%	3.49%
1992	25.5%	3.3%
1993	25.3%	3.12%
1994	25%	2.96%
1995	24.7%	2.81%
1996	24.3%	2.67%
1997	23.9%	2.53%
1998	23.4%	2.41%
1999	22.9%	2.29%
2000	22.4%	2.18%
2001	21.8%	2.08%
2002	21.3%	1.98%
2003	20.7%	1.89%
2004	20.1%	1.81%
2005	19.4%	1.73%
2006	18.8%	1.66%
2007	18.1%	1.59%
2008	17.3%	1.53%
2009	16.6%	1.47%
2010	15.9%	1.42%
2011	15.2%	1.37%
2012	14.5%	1.32%
2013	13.9%	1.27%
2014	13.7%	1.23%
2015	13.8%	1.19%
2016	12.3%	1.15%
2017	11.8%	1.11%
2018	11.3%	1.08%
2019	10.9%	1.04%
2020	10.5%	1.01%
2021	10.1%	0.98%
2022	9.77%	0.95%
2023	9.43%	0.92%