Fertility & birth rates in Kiribati and Tanzania

Fertility rate in Kiribati vs Tanzania by year

Chart Table

Kiribati

Tanzania

1x

Year	Fertility rate
	Kiribati	Tanzania
2023	3.15	4.61
2022	3.18	4.67
2021	3.22	4.73
2020	3.25	4.8
2019	3.29	4.87
2018	3.32	4.93
2017	3.34	4.99
2016	3.38	5.01
2015	3.44	5.03
2014	3.52	5.12
2013	3.64	5.16
2012	3.77	5.14
2011	3.88	5.14
2010	3.9	5.23
2009	3.91	5.26
2008	3.9	5.32
2007	3.87	5.4
2006	3.82	5.51
2005	3.76	5.58
2004	3.73	5.6
2003	3.7	5.58
2002	3.81	5.57
2001	3.96	5.62
2000	4.07	5.67
1999	4.18	5.75
1998	4.29	5.81
1997	4.37	5.84
1996	4.43	5.83
1995	4.42	5.82
1994	4.44	5.89
1993	4.49	6
1992	4.57	6.08
1991	4.64	6.14
1990	4.67	6.2
1989	4.69	6.3
1988	4.73	6.38
1987	4.81	6.41
1986	4.87	6.49
1985	4.91	6.6
1984	4.91	6.72
1983	4.91	6.81
1982	4.95	6.87
1981	4.96	6.93
1980	4.96	6.99
1979	4.97	7.04
1978	4.97	7.06
1977	4.96	7.07
1976	4.96	7.09
1975	5.02	7.1
1974	5.09	7.12
1973	5.2	7.06
1972	5.37	7.05
1971	5.55	7.04
1970	5.71	7
1969	5.85	6.95
1968	5.98	6.9
1967	6.11	6.86
1966	6.23	6.8
1965	6.26	6.73
1964	6.29	6.68
1963	6.35	6.65
1962	6.42	6.61
1961	6.48	6.56
1960	6.44	6.54

According to the latest available data on birth rates, the fertility rate in Kiribati was 3.15 children per woman in 2023, compared to 4.61 in Tanzania in 2023. The replacement level is considered to be 2.1 children per woman.

Check Kiribati vs Tanzania population clock for a dynamic visualization of the changing population.

Natural population change by year

Chart Table

Kiribati

Tanzania

1x

Year	Natural population change
	Kiribati	Tanzania
2023	2,487	1,960,623
2022	2,522	1,927,960
2021	2,408	1,880,137
2020	2,497	1,861,377
2019	2,560	1,816,669
2018	2,561	1,777,852
2017	2,549	1,726,909
2016	2,546	1,659,502
2015	2,555	1,592,882
2014	2,577	1,565,630
2013	2,629	1,509,008
2012	2,678	1,439,325
2011	2,709	1,384,886
2010	2,644	1,363,477
2009	2,573	1,332,015
2008	2,493	1,303,728
2007	2,393	1,278,285
2006	2,285	1,257,927
2005	2,188	1,224,165
2004	2,118	1,175,379
2003	2,045	1,118,435
2002	2,074	1,063,195
2001	2,121	1,026,242
2000	2,153	985,185
1999	2,186	948,659
1998	2,210	920,806
1997	2,220	882,544
1996	2,217	868,524
1995	2,183	838,980
1994	2,168	803,953
1993	2,161	778,044
1992	2,173	767,961
1991	2,176	762,011
1990	2,127	750,825
1989	2,073	743,854
1988	2,022	736,551
1987	1,982	718,580
1986	1,933	705,677
1985	1,881	697,867
1984	1,813	687,435
1983	1,748	679,720
1982	1,697	662,627
1981	1,635	645,496
1980	1,571	629,444
1979	1,509	613,388
1978	1,480	595,024
1977	1,426	574,938
1976	1,425	553,617
1975	1,423	533,906
1974	1,430	515,152
1973	1,409	488,429
1972	1,406	467,305
1971	1,406	449,014
1970	1,388	427,988
1969	1,367	408,322
1968	1,393	389,467
1967	1,417	374,763
1966	1,437	360,229
1965	1,376	343,456
1964	1,318	328,527
1963	1,273	314,644
1962	1,233	300,663
1961	1,199	286,839
1960	1,141	275,814

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 +1.88% in Kiribati and +2.94% in Tanzania.

For the past 10 years, the annual natural population change has been +2.05% in Kiribati and +3.05% in Tanzania.

Birth rate in Kiribati vs Tanzania by year

Chart Table

Kiribati

Tanzania

Annual births per 1,000 people

1x

Year	Annual births per 1,000 people
	Kiribati	Tanzania
2023	25.8	35.2
2022	26.4	35.6
2021	26.9	36
2020	27.4	36.4
2019	27.8	36.9
2018	28.1	37.3
2017	28.3	37.6
2016	28.5	37.6
2015	28.9	37.6
2014	29.3	38.4
2013	30	38.4
2012	30.8	38.1
2011	31.4	38.1
2010	31.2	38.8
2009	31.1	39.2
2008	30.8	39.6
2007	30.3	40.2
2006	29.7	41
2005	29.2	41.5
2004	28.9	41.5
2003	28.6	41.3
2002	29.4	41.2
2001	30.5	41.4
2000	31.5	41.5
1999	32.5	41.8
1998	33.4	42.1
1997	34.1	42.1
1996	34.8	42.3
1995	35	41.9
1994	35.4	41.5
1993	35.9	41.7
1992	36.8	42.3
1991	37.6	42.7
1990	37.7	43
1989	37.9	43.5
1988	38.2	44
1987	38.6	44.3
1986	38.8	44.9
1985	38.9	45.7
1984	38.6	46.4
1983	38.1	47.1
1982	37.9	47.5
1981	37.4	47.9
1980	36.8	48.3
1979	36.2	48.8
1978	36.2	49.2
1977	35.7	49.5
1976	35.4	49.8
1975	35.4	50.2
1974	35.7	50.6
1973	35.7	50.3
1972	36.5	50.4
1971	37.4	50.6
1970	38.1	50.4
1969	38.7	50.3
1968	40.1	50.2
1967	41.2	50.3
1966	42.2	50.2
1965	42	49.9
1964	42.2	49.8
1963	42.6	49.7
1962	43.1	49.4
1961	43.6	49.1
1960	43.5	49

The latest reported birth rate per 1,000 people in 2023 was 25.8 in Kiribati and 35.2 in Tanzania, compared with 43.5 and 49, respectively, in 1960.

Children 0-14 years as share of population

Chart Table

Kiribati

Factual

UN forecast

Tanzania

Factual

UN forecast

1x

Year	Young
	Kiribati	Tanzania
2100	19.5%	23.4%
2099	19.6%	23.6%
2098	19.7%	23.8%
2097	19.8%	23.9%
2096	20%	24.1%
2095	20.1%	24.3%
2094	20.2%	24.5%
2093	20.3%	24.7%
2092	20.5%	24.8%
2091	20.6%	25%
2090	20.7%	25.2%
2089	20.9%	25.4%
2088	21%	25.6%
2087	21.2%	25.8%
2086	21.3%	26%
2085	21.4%	26.2%
2084	21.6%	26.4%
2083	21.7%	26.6%
2082	21.8%	26.8%
2081	22%	27.1%
2080	22.1%	27.3%
2079	22.2%	27.5%
2078	22.3%	27.7%
2077	22.5%	28%
2076	22.6%	28.2%
2075	22.7%	28.4%
2074	22.9%	28.7%
2073	23%	28.9%
2072	23.1%	29.1%
2071	23.3%	29.4%
2070	23.4%	29.6%
2069	23.6%	29.8%
2068	23.8%	30.1%
2067	23.9%	30.3%
2066	24.1%	30.6%
2065	24.3%	30.8%
2064	24.5%	31.1%
2063	24.7%	31.3%
2062	25%	31.6%
2061	25.2%	31.9%
2060	25.4%	32.1%
2059	25.6%	32.4%
2058	25.8%	32.7%
2057	26.1%	32.9%
2056	26.3%	33.2%
2055	26.5%	33.5%
2054	26.7%	33.8%
2053	26.9%	34.1%
2052	27.1%	34.3%
2051	27.3%	34.6%
2050	27.5%	34.9%
2049	27.7%	35.2%
2048	27.9%	35.5%
2047	28%	35.8%
2046	28.2%	36.1%
2045	28.4%	36.4%
2044	28.5%	36.7%
2043	28.7%	37%
2042	28.9%	37.3%
2041	29.1%	37.6%
2040	29.3%	37.9%
2039	29.5%	38.3%
2038	29.8%	38.6%
2037	30.1%	39%
2036	30.4%	39.3%
2035	30.8%	39.6%
2034	31.1%	40%
2033	31.5%	40.3%
2032	31.8%	40.7%
2031	32.2%	41%
2030	32.6%	41.3%
2029	32.9%	41.6%
2028	33.3%	41.8%
2027	33.7%	42.1%
2026	34.2%	42.2%
2025	34.6%	42.4%
2024	34.7%	42.5%
2023	34.9%	42.7%
2022	35.1%	42.9%
2021	35.2%	43.1%
2020	35.2%	43.4%
2019	35.1%	43.6%
2018	35.1%	43.8%
2017	35%	44%
2016	35%	44.2%
2015	35.2%	44.5%
2014	35.4%	44.8%
2013	35.7%	44.9%
2012	36.1%	45.1%
2011	36.4%	45.2%
2010	36.6%	45.3%
2009	36.8%	45.3%
2008	37%	45.1%
2007	37.3%	45%
2006	37.6%	44.9%
2005	38%	44.8%
2004	38.4%	44.7%
2003	38.9%	44.6%
2002	39.3%	44.6%
2001	39.8%	44.5%
2000	40.1%	44.6%
1999	40.5%	44.7%
1998	40.8%	44.7%
1997	41%	44.8%
1996	41.1%	44.7%
1995	41.2%	44.5%
1994	41.2%	44.9%
1993	41%	45.5%
1992	40.8%	46%
1991	40.5%	46.2%
1990	40.2%	46.3%
1989	39.9%	46.5%
1988	39.7%	46.7%
1987	39.4%	46.9%
1986	39.2%	47.2%
1985	39.2%	47.4%
1984	39.2%	47.5%
1983	39.5%	47.6%
1982	39.9%	47.5%
1981	40.5%	47.4%
1980	41.1%	47.2%
1979	41.8%	46.9%
1978	42.3%	46.7%
1977	42.8%	46.6%
1976	43.2%	46.5%
1975	43.7%	46.4%
1974	44.2%	46.3%
1973	44.6%	46.2%
1972	44.8%	46.1%
1971	44.8%	46.1%
1970	44.9%	46%
1969	45%	45.9%
1968	44.9%	45.8%
1967	44.5%	45.6%
1966	44.1%	45.4%
1965	43.9%	45.2%
1964	44%	45%
1963	44%	44.8%
1962	43.8%	44.8%
1961	43.5%	44.8%
1960	43.2%	44.9%

Children aged 0-14 make up 34.7% of the population in Kiribati and 42.5% in Tanzania in 2024, compared to 40.2% and 46.3% respectively in 1990.

Demographics of Kiribati and Tanzania compared.

Maternal mortality chart: Kiribati vs Tanzania

Chart Table

Kiribati

Tanzania

1x

Year	Maternal mortality per 100K births
	Kiribati	Tanzania
2023	80	276
2022	86	152
2021	122	162
2020	89	160
2019	89	292
2018	87	319
2017	90	345
2016	88	396
2015	90	433
2014	91	454
2013	93	479
2012	98	448
2011	98	475
2010	102	486
2009	99	502
2008	100	511
2007	101	453
2006	102	366
2005	104	350
2004	106	365
2003	105	397
2002	109	454
2001	113	493
2000	119	568
1999	121	635
1998	126	739
1997	132	777
1996	141	775
1995	148	797
1994	150	816
1993	162	851
1992	175	864
1991	188	873
1990	199	900
1989	212	927
1988	220	949
1987	231	964
1986	232	971
1985	246	980

The maternal mortality rate, which is the probability of dying during childbirth or within 42 days of pregnancy termination, is 80 deaths per 100,000 live births in Kiribati, compared to 276 deaths in Tanzania.

Under-five mortality rates

Chart Table

Kiribati

Tanzania

Probability that a newborn baby will die before reaching age five

1x

Year	Under 5 mortality rate
	Kiribati	Tanzania
2023	5.51%	3.89%
2022	5.65%	4.05%
2021	5.76%	4.22%
2020	5.86%	4.42%
2019	5.93%	4.6%
2018	5.98%	4.8%
2017	5.99%	5.02%
2016	5.95%	5.25%
2015	5.89%	5.48%
2014	5.84%	5.67%
2013	5.8%	5.95%
2012	5.78%	6.21%
2011	5.79%	6.5%
2010	5.82%	6.86%
2009	5.87%	7.24%
2008	5.93%	7.7%
2007	5.99%	8.16%
2006	6.03%	8.69%
2005	6.07%	9.24%
2004	6.13%	9.86%
2003	6.2%	10.5%
2002	6.31%	11.3%
2001	6.46%	12.1%
2000	6.64%	12.8%
1999	6.83%	13.6%
1998	7.02%	14.2%
1997	7.22%	14.8%
1996	7.42%	15.2%
1995	7.64%	15.6%
1994	7.87%	15.9%
1993	8.13%	16.1%
1992	8.44%	16.3%
1991	8.77%	16.5%
1990	9.13%	16.7%
1989	9.5%	16.9%
1988	9.87%	17.2%
1987	10.2%	17.4%
1986	10.6%	17.6%
1985	10.9%	17.7%
1984	11.1%	17.8%
1983	11.4%	17.8%
1982	11.6%	17.8%
1981	11.7%	17.8%
1980	11.9%	17.9%
1979	12%	18.1%
1978	12.2%	18.4%
1977	12.3%	18.8%
1976	12.4%	19.2%
1975	12.5%	19.6%
1974	12.7%	20.1%
1973	13%	20.5%
1972	13.3%	20.9%
1971	13.7%	21.2%
1970	14.1%	21.6%
1969	14.6%	21.9%
1968	15.2%	22.2%
1967	15.8%	22.5%
1966	16.4%	22.8%
1965	17.1%	23.1%
1964	17.7%	23.4%
1963	18.3%	23.6%
1962	18.9%	23.8%
1961	19.5%	24%
1960	19.9%	24.2%

The chance that a newborn baby will die before reaching age five is 5.51% in Kiribati and 3.89% in Tanzania. Above is a chart with historical data on under-five mortality rates.