Fertility & birth rates in New Zealand and Sierra Leone

Fertility rate in New Zealand vs Sierra Leone by year

Chart Table

New Zealand

Sierra Leone

1x

Year	Fertility rate
	New Zealand	Sierra Leone
2023	1.56	3.79
2022	1.66	3.88
2021	1.64	3.98
2020	1.61	4.08
2019	1.72	4.19
2018	1.71	4.29
2017	1.81	4.39
2016	1.87	4.47
2015	1.99	4.55
2014	1.92	4.7
2013	2.01	4.87
2012	2.1	5.06
2011	2.09	5.21
2010	2.17	5.33
2009	2.13	5.45
2008	2.19	5.56
2007	2.18	5.64
2006	2.01	5.74
2005	1.97	5.81
2004	1.98	5.92
2003	1.93	6.09
2002	1.89	6.23
2001	1.97	6.31
2000	1.98	6.36
1999	1.97	6.42
1998	1.89	6.5
1997	1.96	6.53
1996	1.96	6.55
1995	1.98	6.56
1994	1.98	6.56
1993	2.04	6.57
1992	2.06	6.56
1991	2.09	6.55
1990	2.18	6.57
1989	2.12	6.57
1988	2.1	6.59
1987	2.03	6.61
1986	1.96	6.6
1985	1.93	6.59
1984	1.93	6.59
1983	1.92	6.57
1982	1.95	6.56
1981	2.01	6.55
1980	2.03	6.56
1979	2.12	6.58
1978	2.07	6.59
1977	2.21	6.57
1976	2.27	6.55
1975	2.37	6.55
1974	2.58	6.53
1973	2.76	6.47
1972	3	6.45
1971	3.18	6.43
1970	3.17	6.41
1969	3.28	6.39
1968	3.34	6.39
1967	3.35	6.38
1966	3.41	6.35
1965	3.54	6.31
1964	3.8	6.29
1963	4.05	6.26
1962	4.19	6.22
1961	4.31	6.21
1960	4.24	6.18

According to the latest available data on birth rates, the fertility rate in New Zealand was 1.56 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 New Zealand vs Sierra Leone population clock for a dynamic visualization of the changing population.

Natural population change by year

Chart Table

New Zealand

Sierra Leone

1x

Year	Natural population change
	New Zealand	Sierra Leone
2023	18,876	188,788
2022	20,123	186,625
2021	23,644	183,326
2020	24,905	181,015
2019	25,299	181,068
2018	24,797	178,772
2017	26,282	173,259
2016	28,237	168,784
2015	29,408	162,275
2014	26,196	160,137
2013	29,096	161,265
2012	31,077	160,915
2011	31,302	158,858
2010	35,458	155,338
2009	33,560	152,669
2008	35,143	149,855
2007	35,480	145,740
2006	30,924	144,127
2005	30,674	137,234
2004	29,634	132,661
2003	28,150	130,312
2002	25,941	126,429
2001	27,939	116,647
2000	29,897	110,754
1999	28,916	102,295
1998	29,146	103,906
1997	30,137	105,433
1996	28,997	104,140
1995	29,828	100,885
1994	30,372	101,486
1993	31,685	103,317
1992	32,067	103,251
1991	33,518	105,477
1990	33,298	100,778
1989	30,749	98,298
1988	29,846	96,344
1987	27,603	94,235
1986	25,549	90,902
1985	24,126	88,869
1984	26,043	87,072
1983	24,315	84,628
1982	24,207	82,457
1981	25,374	80,111
1980	23,658	77,932
1979	26,675	75,992
1978	26,156	74,130
1977	28,020	71,663
1976	29,456	69,506
1975	31,355	67,560
1974	33,896	65,357
1973	35,239	62,443
1972	38,244	60,279
1971	40,000	58,484
1970	37,101	56,513
1969	38,098	54,768
1968	37,594	53,126
1967	37,974	51,734
1966	36,151	49,486
1965	36,982	47,223
1964	39,375	45,487
1963	42,027	43,569
1962	42,865	41,603
1961	43,482	40,022
1960	41,791	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 +0.36% in New Zealand and +2.23% in Sierra Leone.

For the past 10 years, the annual natural population change has been +0.51% in New Zealand and +2.31% in Sierra Leone.

Birth rate in New Zealand vs Sierra Leone by year

Chart Table

New Zealand

Sierra Leone

Annual births per 1,000 people

1x

Year	Annual births per 1,000 people
	New Zealand	Sierra Leone
2023	10.9	30.6
2022	11.5	31.1
2021	11.5	31.6
2020	11.3	32.2
2019	12	32.8
2018	11.8	33.3
2017	12.4	33.8
2016	12.6	34.2
2015	13.2	34.7
2014	12.7	35.6
2013	13.2	36.6
2012	13.9	37.8
2011	14	38.5
2010	14.7	39.1
2009	14.5	39.9
2008	15.1	40.6
2007	15.2	41.1
2006	14.1	41.8
2005	14	42
2004	14.2	42.5
2003	13.9	43.5
2002	13.7	44.3
2001	14.4	44
2000	14.7	45
1999	14.9	46.1
1998	14.5	46.3
1997	15.2	46.3
1996	15.3	46.5
1995	15.7	46.8
1994	15.8	46.8
1993	16.5	46.9
1992	16.8	47
1991	17.1	47.5
1990	17.9	45.5
1989	17.4	46.3
1988	17.4	46.4
1987	16.7	46.6
1986	16.1	46.6
1985	15.8	46.7
1984	15.9	46.8
1983	15.7	46.7
1982	15.7	46.8
1981	16.1	46.8
1980	16.1	46.8
1979	16.7	47
1978	16.2	47.2
1977	17.2	47.1
1976	17.6	47.2
1975	18.3	47.3
1974	19.5	47.4
1973	20.4	47.2
1972	21.7	47.2
1971	22.5	47.3
1970	22	47.4
1969	22.4	47.5
1968	22.6	47.7
1967	22.4	47.9
1966	22.4	48
1965	22.8	48
1964	24.1	48.2
1963	25.4	48.2
1962	26.2	48.1
1961	27	48.1
1960	26.4	48

The latest reported birth rate per 1,000 people in 2023 was 10.9 in New Zealand and 30.6 in Sierra Leone, compared with 26.4 and 48, respectively, in 1960.

Children 0-14 years as share of population

Chart Table

New Zealand

Factual

UN forecast

Sierra Leone

Factual

UN forecast

1x

Year	Young
	New Zealand	Sierra Leone
2100	13.6%	19%
2099	13.6%	19%
2098	13.6%	19.1%
2097	13.6%	19.2%
2096	13.7%	19.3%
2095	13.7%	19.5%
2094	13.7%	19.6%
2093	13.8%	19.7%
2092	13.8%	19.8%
2091	13.8%	19.9%
2090	13.8%	20%
2089	13.8%	20.1%
2088	13.9%	20.3%
2087	13.9%	20.4%
2086	13.9%	20.5%
2085	13.9%	20.7%
2084	13.9%	20.8%
2083	13.9%	20.9%
2082	13.9%	21.1%
2081	13.9%	21.2%
2080	13.9%	21.4%
2079	13.9%	21.6%
2078	13.9%	21.7%
2077	13.9%	21.9%
2076	13.9%	22.1%
2075	13.9%	22.2%
2074	14%	22.4%
2073	14%	22.6%
2072	14%	22.8%
2071	14.1%	23%
2070	14.1%	23.2%
2069	14.1%	23.4%
2068	14.2%	23.6%
2067	14.3%	23.8%
2066	14.3%	24%
2065	14.4%	24.3%
2064	14.4%	24.5%
2063	14.5%	24.7%
2062	14.6%	25%
2061	14.7%	25.2%
2060	14.7%	25.5%
2059	14.8%	25.7%
2058	14.9%	26%
2057	15%	26.3%
2056	15%	26.6%
2055	15.1%	26.9%
2054	15.1%	27.1%
2053	15.2%	27.4%
2052	15.2%	27.7%
2051	15.2%	28.1%
2050	15.2%	28.4%
2049	15.2%	28.7%
2048	15.3%	29%
2047	15.3%	29.3%
2046	15.3%	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	15.5%	31.8%
2039	15.6%	32.2%
2038	15.7%	32.6%
2037	15.9%	33%
2036	16%	33.4%
2035	16.1%	33.8%
2034	16.2%	34.2%
2033	16.4%	34.6%
2032	16.5%	35%
2031	16.7%	35.4%
2030	16.9%	35.7%
2029	17.1%	36.1%
2028	17.3%	36.5%
2027	17.5%	37%
2026	17.8%	37.4%
2025	18%	37.9%
2024	18.1%	38.1%
2023	18.4%	38.5%
2022	18.6%	39%
2021	18.9%	39.4%
2020	19%	39.8%
2019	19.2%	40.2%
2018	19.3%	40.6%
2017	19.5%	41%
2016	19.6%	41.4%
2015	19.9%	41.8%
2014	20.2%	42.2%
2013	20.4%	42.5%
2012	20.6%	42.8%
2011	20.8%	43%
2010	20.9%	43.2%
2009	20.9%	43.4%
2008	21%	43.5%
2007	21.1%	43.6%
2006	21.3%	43.7%
2005	21.5%	43.8%
2004	21.8%	43.9%
2003	22.1%	43.9%
2002	22.4%	43.9%
2001	22.6%	43.9%
2000	22.8%	43.8%
1999	22.9%	43.7%
1998	23%	43.6%
1997	23%	43.5%
1996	23%	43.5%
1995	23.1%	43.4%
1994	23.1%	43.3%
1993	23.1%	43.2%
1992	23.1%	43.1%
1991	23.2%	43%
1990	23.3%	42.9%
1989	23.3%	42.9%
1988	23.5%	42.8%
1987	23.8%	42.7%
1986	24.2%	42.6%
1985	24.6%	42.5%
1984	25.1%	42.3%
1983	25.6%	42.2%
1982	26.2%	42.1%
1981	26.7%	42%
1980	27.2%	41.9%
1979	27.8%	41.8%
1978	28.4%	41.7%
1977	29%	41.6%
1976	29.6%	41.4%
1975	30.1%	41.3%
1974	30.5%	41.1%
1973	31%	40.9%
1972	31.4%	40.7%
1971	31.7%	40.6%
1970	31.9%	40.3%
1969	32.2%	40.1%
1968	32.3%	39.9%
1967	32.5%	39.6%
1966	32.6%	39.4%
1965	32.7%	39.1%
1964	32.9%	38.8%
1963	32.9%	38.5%
1962	33%	38.3%
1961	33%	38.3%
1960	32.8%	38.2%

Children aged 0-14 make up 18.1% of the population in New Zealand and 38.1% in Sierra Leone in 2024, compared to 23.3% and 42.9% respectively in 1990.

Demographics of New Zealand and Sierra Leone compared.

Maternal mortality chart: New Zealand vs Sierra Leone

Chart Table

New Zealand

Sierra Leone

1x

Year	Maternal mortality per 100K births
	New Zealand	Sierra Leone
2023	7	354
2022	23	370
2021	8	403
2020	8	422
2019	8	464
2018	7	491
2017	8	578
2016	8	633
2015	8	730
2014	7	821
2013	8	842
2012	9	915
2011	10	967
2010	10	1,018
2009	10	1,054
2008	10	1,093
2007	10	1,132
2006	10	1,168
2005	11	1,294
2004	11	1,366
2003	11	1,433
2002	11	1,492
2001	10	1,518
2000	11	1,603
1999	12	1,731
1998	12	1,753
1997	13	1,721
1996	14	1,726
1995	14	1,777
1994	13	1,755
1993	14	1,696
1992	15	1,681
1991	16	1,699
1990	18	1,572
1989	18	1,575
1988	19	1,549
1987	19	1,533
1986	18	1,530
1985	19	1,506

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 7 deaths per 100,000 live births in New Zealand, compared to 354 deaths in Sierra Leone.

Under-five mortality rates

Chart Table

New Zealand

Sierra Leone

Probability that a newborn baby will die before reaching age five

1x

Year	Under 5 mortality rate
	New Zealand	Sierra Leone
2023	0.47%	9.43%
2022	0.48%	9.77%
2021	0.49%	10.1%
2020	0.5%	10.5%
2019	0.51%	10.9%
2018	0.52%	11.3%
2017	0.53%	11.8%
2016	0.55%	12.3%
2015	0.56%	13.8%
2014	0.57%	13.7%
2013	0.59%	13.9%
2012	0.6%	14.5%
2011	0.61%	15.2%
2010	0.62%	15.9%
2009	0.63%	16.6%
2008	0.64%	17.3%
2007	0.65%	18.1%
2006	0.65%	18.8%
2005	0.66%	19.4%
2004	0.67%	20.1%
2003	0.69%	20.7%
2002	0.7%	21.3%
2001	0.72%	21.8%
2000	0.74%	22.4%
1999	0.76%	22.9%
1998	0.78%	23.4%
1997	0.81%	23.9%
1996	0.84%	24.3%
1995	0.87%	24.7%
1994	0.91%	25%
1993	0.95%	25.3%
1992	1%	25.5%
1991	1.06%	25.7%
1990	1.12%	25.9%
1989	1.18%	26.2%
1988	1.24%	26.4%
1987	1.29%	26.6%
1986	1.34%	26.9%
1985	1.38%	27.2%
1984	1.41%	27.5%
1983	1.45%	27.8%
1982	1.48%	28.1%
1981	1.52%	28.5%
1980	1.56%	28.9%
1979	1.61%	29.2%
1978	1.66%	29.6%
1977	1.71%	30%
1976	1.77%	30.5%
1975	1.83%	30.9%
1974	1.88%	31.4%
1973	1.94%	31.9%
1972	1.98%	32.3%
1971	2.03%	32.9%
1970	2.08%	33.4%
1969	2.12%	33.9%
1968	2.16%	34.5%
1967	2.2%	35%
1966	2.25%	35.6%
1965	2.31%	36.2%
1964	2.39%	36.8%
1963	2.48%	37.4%
1962	2.58%	38%
1961	2.68%	38.5%
1960	2.78%	39.1%

The chance that a newborn baby will die before reaching age five is 0.47% in New Zealand and 9.43% in Sierra Leone. Above is a chart with historical data on under-five mortality rates.