Fertility & birth rates in Slovakia and Tonga

Fertility rate in Slovakia vs Tonga chart

According to the latest available data on birth rates, the fertility rate in Slovakia was 1.49 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 Slovakia 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
	Slovakia	Tonga
1960	3.04	6.65
1961	2.96	6.61
1962	2.83	6.57
1963	2.92	6.52
1964	2.89	6.46
1965	2.78	6.41
1966	2.66	6.35
1967	2.48	6.29
1968	2.39	6.23
1969	2.43	6.17
1970	2.41	6.07
1971	2.43	5.96
1972	2.49	5.86
1973	2.56	5.8
1974	2.61	5.77
1975	2.55	5.75
1976	2.55	5.73
1977	2.49	5.7
1978	2.47	5.68
1979	2.45	5.65
1980	2.32	5.6
1981	2.29	5.55
1982	2.28	5.5
1983	2.28	5.45
1984	2.26	5.41
1985	2.26	5.34
1986	2.2	5.27
1987	2.14	5.19
1988	2.13	5.1
1989	2.07	5.01
1990	2.09	4.93
1991	2.05	4.85
1992	1.93	4.79
1993	1.87	4.73
1994	1.67	4.66
1995	1.52	4.56
1996	1.47	4.46
1997	1.43	4.38
1998	1.37	4.31
1999	1.33	4.23
2000	1.3	4.16
2001	1.2	4.13
2002	1.19	4.14
2003	1.2	4.18
2004	1.25	4.19
2005	1.27	4.2
2006	1.25	4.14
2007	1.27	4.09
2008	1.34	4.01
2009	1.44	3.95
2010	1.43	3.88
2011	1.45	3.83
2012	1.34	3.77
2013	1.34	3.7
2014	1.37	3.62
2015	1.4	3.54
2016	1.48	3.46
2017	1.52	3.39
2018	1.54	3.33
2019	1.57	3.27
2020	1.59	3.23
2021	1.63	3.2
2022	1.57	3.17
2023	1.49	3.13
2024	1.49	3.1
2025	1.5	3.07
2026	1.5	3.04
2027	1.5	3
2028	1.51	2.97
2029	1.51	2.95
2030	1.51	2.91
2031	1.51	2.89
2032	1.51	2.85
2033	1.52	2.82
2034	1.52	2.8
2035	1.52	2.77
2036	1.52	2.75
2037	1.52	2.72
2038	1.52	2.7
2039	1.52	2.68
2040	1.52	2.65
2041	1.52	2.63
2042	1.52	2.61
2043	1.52	2.59
2044	1.53	2.56
2045	1.53	2.54
2046	1.53	2.52
2047	1.53	2.5
2048	1.53	2.49
2049	1.53	2.47
2050	1.53	2.45

Children 0-14 years as share of population

Table

Year	Share of people 0-14 years old
	Slovakia	Tonga
1960	31.5%	45.7%
1961	31.5%	45.7%
1962	31.3%	45.8%
1963	31%	45.9%
1964	30.8%	45.9%
1965	30.4%	45.9%
1966	29.9%	45.9%
1967	29.3%	46%
1968	28.6%	46.2%
1969	28.1%	46.3%
1970	27.5%	46.4%
1971	27%	46.4%
1972	26.6%	46.3%
1973	26.2%	46.2%
1974	26.1%	46.2%
1975	26%	46.2%
1976	26%	46.1%
1977	26%	45.8%
1978	26.1%	45.3%
1979	26.1%	44.8%
1980	26.1%	44.3%
1981	26.1%	43.9%
1982	26.2%	43.4%
1983	26.3%	42.9%
1984	26.4%	42.4%
1985	26.5%	42%
1986	26.4%	41.7%
1987	26.3%	41.5%
1988	26.1%	41.2%
1989	25.7%	40.9%
1990	25.2%	40.8%
1991	24.8%	40.6%
1992	24.4%	40.5%
1993	23.9%	40.3%
1994	23.3%	40.1%
1995	22.7%	39.9%
1996	22.1%	39.7%
1997	21.5%	39.3%
1998	20.9%	38.9%
1999	20.3%	38.6%
2000	19.7%	38.3%
2001	19%	38.2%
2002	18.4%	38.1%
2003	17.9%	38.1%
2004	17.3%	38.2%
2005	16.9%	38.3%
2006	16.4%	38.3%
2007	16%	38.3%
2008	15.7%	38%
2009	15.5%	37.8%
2010	15.5%	37.6%
2011	15.4%	37.4%
2012	15.4%	37.2%
2013	15.3%	37.1%
2014	15.3%	36.9%
2015	15.3%	36.7%
2016	15.4%	36.5%
2017	15.5%	36.4%
2018	15.7%	36.2%
2019	15.8%	36%
2020	15.9%	35.8%
2021	15.9%	35.7%
2022	16%	35.6%
2023	15.9%	35.6%
2024	15.8%	35.4%
2025	15.6%	34.9%
2026	15.4%	34.4%
2027	15.1%	33.8%
2028	15%	33.3%
2029	14.8%	32.6%
2030	14.6%	32%
2031	14.4%	31.6%
2032	14.1%	31.2%
2033	13.8%	31%
2034	13.6%	30.8%
2035	13.4%	30.7%
2036	13.2%	30.5%
2037	13%	30.4%
2038	12.9%	30.3%
2039	12.8%	30.2%
2040	12.7%	30.1%
2041	12.7%	30.1%
2042	12.7%	30%
2043	12.7%	30%
2044	12.7%	29.9%
2045	12.8%	29.8%
2046	12.8%	29.6%
2047	12.9%	29.5%
2048	13%	29.2%
2049	13%	29%
2050	13.1%	28.7%

Children aged 0-14 make up 15.8% of the population in Slovakia and 35.4% in Tonga in 2024, compared to 25.2% and 40.8% respectively in 1990.

Demographics of Slovakia and Tonga compared.

Natural population change in Slovakia vs Tonga by year

For the past 10 years, the annual natural population change (excluding migration) has been -0.02% in Slovakia 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
	Slovakia	Tonga
1960	56,546	2,230
1961	55,749	2,284
1962	49,587	2,343
1963	54,382	2,394
1964	54,092	2,445
1965	48,517	2,498
1966	45,440	2,550
1967	41,824	2,603
1968	38,113	2,614
1969	39,312	2,632
1970	38,575	2,628
1971	40,105	2,611
1972	46,426	2,605
1973	49,199	2,617
1974	52,524	2,650
1975	52,604	2,709
1976	54,121	2,769
1977	52,762	2,822
1978	52,324	2,862
1979	52,353	2,884
1980	44,320	2,885
1981	43,640	2,882
1982	41,958	2,853
1983	39,717	2,840
1984	38,966	2,814
1985	37,680	2,762
1986	34,279	2,704
1987	31,859	2,646
1988	30,979	2,649
1989	26,380	2,644
1990	25,436	2,641
1991	23,865	2,637
1992	21,220	2,622
1993	20,769	2,594
1994	14,970	2,547
1995	9,115	2,476
1996	9,135	2,393
1997	6,999	2,332
1998	4,312	2,344
1999	3,777	2,352
2000	2,155	2,346
2001	-1,076	2,358
2002	-538	2,396
2003	-537	2,448
2004	1,611	2,478
2005	537	2,495
2006	537	2,459
2007	537	2,423
2008	4,303	2,397
2009	8,619	2,358
2010	7,008	2,332
2011	9,177	2,298
2012	3,245	2,255
2013	2,707	2,199
2014	3,793	2,135
2015	2,170	2,064
2016	5,431	1,989
2017	4,351	1,912
2018	3,268	1,873
2019	3,818	1,841
2020	-2,184	1,816
2021	-16,886	1,773
2022	-7,062	1,772
2023	-5,427	1,744

Maternal mortality chart: Slovakia vs Tonga

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 4 deaths per 100,000 live births in Slovakia, compared to 67 deaths in Tonga.

Table

Year	Maternal mortality per 100K births
	Slovakia	Tonga
1985	19	148
1986	19	149
1987	19	147
1988	18	145
1989	17	139
1990	18	138
1991	17	134
1992	15	129
1993	14	127
1994	12	123
1995	11	117
1996	10	113
1997	10	111
1998	10	104
1999	9	99
2000	8	100
2001	8	98
2002	7	98
2003	7	95
2004	7	92
2005	7	92
2006	6	89
2007	6	88
2008	5	88
2009	6	91
2010	5	85
2011	5	84
2012	5	83
2013	5	80
2014	5	80
2015	5	79
2016	5	78
2017	5	77
2018	5	74
2019	5	73
2020	4	74
2021	12	76
2022	5	72
2023	4	67

Under-five mortality rates

The chance that a newborn baby will die before reaching age five is 0.61% in Slovakia 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
	Slovakia	Tonga
1960	3.67%	-
1961	3.47%	-
1962	3.32%	-
1963	3.21%	7.83%
1964	3.14%	7.35%
1965	3.08%	6.89%
1966	3.05%	6.45%
1967	3.02%	6.03%
1968	3%	5.63%
1969	2.97%	5.25%
1970	2.95%	4.91%
1971	2.92%	4.61%
1972	2.89%	4.35%
1973	2.84%	4.11%
1974	2.78%	3.9%
1975	2.72%	3.71%
1976	2.64%	3.53%
1977	2.55%	3.37%
1978	2.46%	3.22%
1979	2.36%	3.09%
1980	2.27%	2.97%
1981	2.17%	2.87%
1982	2.08%	2.78%
1983	1.99%	2.7%
1984	1.91%	2.63%
1985	1.82%	2.57%
1986	1.73%	2.51%
1987	1.65%	2.44%
1988	1.59%	2.37%
1989	1.53%	2.29%
1990	1.47%	2.21%
1991	1.42%	2.14%
1992	1.37%	2.06%
1993	1.31%	2%
1994	1.25%	1.94%
1995	1.2%	1.89%
1996	1.14%	1.85%
1997	1.09%	1.81%
1998	1.05%	1.78%
1999	1%	1.74%
2000	0.96%	1.7%
2001	0.93%	1.65%
2002	0.91%	1.61%
2003	0.88%	1.56%
2004	0.86%	1.52%
2005	0.83%	1.48%
2006	0.8%	1.44%
2007	0.77%	1.41%
2008	0.74%	1.37%
2009	0.71%	1.34%
2010	0.69%	1.31%
2011	0.67%	1.29%
2012	0.66%	1.26%
2013	0.64%	1.24%
2014	0.63%	1.22%
2015	0.62%	1.19%
2016	0.61%	1.17%
2017	0.6%	1.15%
2018	0.6%	1.12%
2019	0.59%	1.1%
2020	0.59%	1.08%
2021	0.6%	1.05%
2022	0.6%	1.02%
2023	0.61%	0.99%