Fertility & birth rates in Solomon Islands and Tonga

Fertility rate in Solomon Islands vs Tonga chart

According to the latest available data on birth rates, the fertility rate in the Solomon Islands was 3.56 children per woman in 2023, compared to 3.13 in Tonga in 2023. The replacement level is considered to be 2.1 children per woman.

Check the Solomon Islands vs Tonga population clock for a dynamic visualization of the changing population.

The chart below showcases historical changes in the birth rates.

Table

Year	Fertility rate
	Solomon Islands	Tonga
1960	7.07	6.65
1961	7.05	6.61
1962	7.04	6.57
1963	7.03	6.52
1964	7.05	6.46
1965	7.02	6.41
1966	7	6.35
1967	6.97	6.29
1968	6.95	6.23
1969	6.97	6.17
1970	6.98	6.07
1971	6.99	5.96
1972	6.99	5.86
1973	7	5.8
1974	7.01	5.77
1975	6.99	5.75
1976	6.95	5.73
1977	6.92	5.7
1978	6.87	5.68
1979	6.82	5.65
1980	6.77	5.6
1981	6.71	5.55
1982	6.64	5.5
1983	6.57	5.45
1984	6.49	5.41
1985	6.38	5.34
1986	6.26	5.27
1987	6.12	5.19
1988	5.99	5.1
1989	5.87	5.01
1990	5.74	4.93
1991	5.62	4.85
1992	5.51	4.79
1993	5.45	4.73
1994	5.4	4.66
1995	5.34	4.56
1996	5.22	4.46
1997	5.09	4.38
1998	4.98	4.31
1999	4.86	4.23
2000	4.76	4.16
2001	4.67	4.13
2002	4.6	4.14
2003	4.54	4.18
2004	4.47	4.19
2005	4.41	4.2
2006	4.39	4.14
2007	4.37	4.09
2008	4.36	4.01
2009	4.35	3.95
2010	4.34	3.88
2011	4.34	3.83
2012	4.33	3.77
2013	4.33	3.7
2014	4.36	3.62
2015	4.29	3.54
2016	4.2	3.46
2017	4.06	3.39
2018	3.93	3.33
2019	3.8	3.27
2020	3.75	3.23
2021	3.69	3.2
2022	3.62	3.17
2023	3.56	3.13
2024	3.51	3.1
2025	3.47	3.07
2026	3.42	3.04
2027	3.37	3
2028	3.32	2.97
2029	3.28	2.95
2030	3.24	2.91
2031	3.2	2.89
2032	3.16	2.85
2033	3.12	2.82
2034	3.08	2.8
2035	3.04	2.77
2036	3	2.75
2037	2.97	2.72
2038	2.94	2.7
2039	2.91	2.68
2040	2.88	2.65
2041	2.84	2.63
2042	2.82	2.61
2043	2.79	2.59
2044	2.76	2.56
2045	2.73	2.54
2046	2.71	2.52
2047	2.68	2.5
2048	2.66	2.49
2049	2.63	2.47
2050	2.61	2.45

Children 0-14 years as share of population

Table

Year	Share of people 0-14 years old
	Solomon Islands	Tonga
1960	46.3%	45.7%
1961	46.1%	45.7%
1962	46%	45.8%
1963	45.9%	45.9%
1964	45.8%	45.9%
1965	45.9%	45.9%
1966	46%	45.9%
1967	46.2%	46%
1968	46.4%	46.2%
1969	46.6%	46.3%
1970	46.7%	46.4%
1971	46.8%	46.4%
1972	46.9%	46.3%
1973	47.1%	46.2%
1974	47.5%	46.2%
1975	47.9%	46.2%
1976	48.2%	46.1%
1977	48.3%	45.8%
1978	48.3%	45.3%
1979	48.3%	44.8%
1980	48.3%	44.3%
1981	48.2%	43.9%
1982	48.1%	43.4%
1983	47.9%	42.9%
1984	47.8%	42.4%
1985	47.5%	42%
1986	47.3%	41.7%
1987	46.9%	41.5%
1988	46.6%	41.2%
1989	46.2%	40.9%
1990	45.8%	40.8%
1991	45.4%	40.6%
1992	45.1%	40.5%
1993	44.8%	40.3%
1994	44.5%	40.1%
1995	44.3%	39.9%
1996	44%	39.7%
1997	43.8%	39.3%
1998	43.5%	38.9%
1999	43.2%	38.6%
2000	42.9%	38.3%
2001	42.5%	38.2%
2002	42.2%	38.1%
2003	41.9%	38.1%
2004	41.7%	38.2%
2005	41.5%	38.3%
2006	41.3%	38.3%
2007	41.2%	38.3%
2008	41.2%	38%
2009	41.1%	37.8%
2010	41%	37.6%
2011	40.8%	37.4%
2012	40.7%	37.2%
2013	40.4%	37.1%
2014	40.2%	36.9%
2015	40%	36.7%
2016	39.7%	36.5%
2017	39.4%	36.4%
2018	39%	36.2%
2019	38.7%	36%
2020	38.4%	35.8%
2021	38.1%	35.7%
2022	37.7%	35.6%
2023	37.4%	35.6%
2024	37%	35.4%
2025	36.6%	34.9%
2026	36.1%	34.4%
2027	35.7%	33.8%
2028	35.2%	33.3%
2029	34.7%	32.6%
2030	34.3%	32%
2031	33.9%	31.6%
2032	33.5%	31.2%
2033	33.2%	31%
2034	32.9%	30.8%
2035	32.7%	30.7%
2036	32.4%	30.5%
2037	32.2%	30.4%
2038	31.9%	30.3%
2039	31.7%	30.2%
2040	31.5%	30.1%
2041	31.2%	30.1%
2042	31%	30%
2043	30.7%	30%
2044	30.4%	29.9%
2045	30.2%	29.8%
2046	29.9%	29.6%
2047	29.6%	29.5%
2048	29.3%	29.2%
2049	29%	29%
2050	28.7%	28.7%

Children aged 0-14 make up 37% of the population in the Solomon Islands and 35.4% in Tonga in 2024, compared to 45.8% and 40.8% respectively in 1990.

Demographics of the Solomon Islands and Tonga compared.

Natural population change in Solomon Islands vs Tonga by year

For the past 10 years, the annual natural population change (excluding migration) has been +2.38% in the Solomon Islands and +1.79% in Tonga. 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
	Solomon Islands	Tonga
1960	4,119	2,230
1961	4,257	2,284
1962	4,408	2,343
1963	4,571	2,394
1964	4,747	2,445
1965	4,885	2,498
1966	5,028	2,550
1967	5,151	2,603
1968	5,285	2,614
1969	5,444	2,632
1970	5,575	2,628
1971	5,814	2,611
1972	6,074	2,605
1973	6,343	2,617
1974	6,612	2,650
1975	6,635	2,709
1976	7,058	2,769
1977	7,290	2,822
1978	7,598	2,862
1979	7,874	2,884
1980	8,156	2,885
1981	8,436	2,882
1982	8,720	2,853
1983	9,011	2,840
1984	9,299	2,814
1985	9,534	2,762
1986	9,656	2,704
1987	9,943	2,646
1988	10,142	2,649
1989	10,354	2,644
1990	10,561	2,641
1991	10,789	2,637
1992	11,029	2,622
1993	11,396	2,594
1994	11,771	2,547
1995	12,124	2,476
1996	12,328	2,393
1997	12,478	2,332
1998	12,658	2,344
1999	12,809	2,352
2000	12,938	2,346
2001	13,061	2,358
2002	13,195	2,396
2003	13,344	2,448
2004	13,444	2,478
2005	13,568	2,495
2006	13,799	2,459
2007	13,963	2,423
2008	14,225	2,397
2009	14,381	2,358
2010	14,604	2,332
2011	15,095	2,298
2012	15,585	2,255
2013	16,038	2,199
2014	16,652	2,135
2015	16,909	2,064
2016	17,027	1,989
2017	16,897	1,912
2018	16,790	1,873
2019	16,649	1,841
2020	16,488	1,816
2021	16,626	1,773
2022	17,253	1,772
2023	17,436	1,744

Maternal mortality chart: Solomon Islands vs Tonga

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 123 deaths per 100,000 live births in the Solomon Islands, compared to 67 deaths in Tonga.

Table

Year	Maternal mortality per 100K births
	Solomon Islands	Tonga
1985	209	148
1986	226	149
1987	200	147
1988	193	145
1989	188	139
1990	184	138
1991	178	134
1992	174	129
1993	173	127
1994	170	123
1995	168	117
1996	166	113
1997	164	111
1998	165	104
1999	164	99
2000	166	100
2001	167	98
2002	168	98
2003	167	95
2004	164	92
2005	161	92
2006	159	89
2007	163	88
2008	153	88
2009	152	91
2010	148	85
2011	147	84
2012	146	83
2013	147	80
2014	147	80
2015	146	79
2016	143	78
2017	140	77
2018	136	74
2019	135	73
2020	131	74
2021	153	76
2022	126	72
2023	123	67

Under-five mortality rates

The chance that a newborn baby will die before reaching age five is 2.06% in the Solomon Islands and 0.99% in Tonga. 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
	Solomon Islands	Tonga
1960	16.7%	-
1961	16%	-
1962	15.4%	-
1963	14.7%	7.83%
1964	14%	7.35%
1965	13.3%	6.89%
1966	12.7%	6.45%
1967	12%	6.03%
1968	11.3%	5.63%
1969	10.6%	5.25%
1970	9.94%	4.91%
1971	9.29%	4.61%
1972	8.69%	4.35%
1973	8.12%	4.11%
1974	7.6%	3.9%
1975	7.9%	3.71%
1976	6.68%	3.53%
1977	6.29%	3.37%
1978	5.95%	3.22%
1979	5.64%	3.09%
1980	5.38%	2.97%
1981	5.14%	2.87%
1982	4.93%	2.78%
1983	4.74%	2.7%
1984	4.58%	2.63%
1985	4.42%	2.57%
1986	4.28%	2.51%
1987	4.16%	2.44%
1988	4.04%	2.37%
1989	3.93%	2.29%
1990	3.82%	2.21%
1991	3.72%	2.14%
1992	3.62%	2.06%
1993	3.52%	2%
1994	3.43%	1.94%
1995	3.35%	1.89%
1996	3.27%	1.85%
1997	3.21%	1.81%
1998	3.16%	1.78%
1999	3.11%	1.74%
2000	3.07%	1.7%
2001	3.03%	1.65%
2002	2.99%	1.61%
2003	2.97%	1.56%
2004	2.94%	1.52%
2005	2.91%	1.48%
2006	2.88%	1.44%
2007	2.85%	1.41%
2008	2.81%	1.37%
2009	2.76%	1.34%
2010	2.72%	1.31%
2011	2.67%	1.29%
2012	2.62%	1.26%
2013	2.58%	1.24%
2014	2.53%	1.22%
2015	2.49%	1.19%
2016	2.45%	1.17%
2017	2.41%	1.15%
2018	2.36%	1.12%
2019	2.3%	1.1%
2020	2.24%	1.08%
2021	2.18%	1.05%
2022	2.12%	1.02%
2023	2.06%	0.99%