Burundi vs Sao Tome and Principe Demographics: Median age, Gender, Religion

Median age history and projection chart in
Burundi vs Sao Tome and Principe

Table

Year	Median age
	Burundi	Sao Tome
1960	17.5	24.2
1961	17.4	24.3
1962	17.4	24.1
1963	17.3	23.5
1964	17.3	22.4
1965	17.3	21
1966	17.4	19.5
1967	17.4	18.5
1968	17.4	17.7
1969	17.3	17.2
1970	17.3	16.9
1971	17.3	16.9
1972	17.1	17
1973	16.8	17
1974	16.9	17.1
1975	17	17.1
1976	16.9	17.1
1977	17	17.2
1978	17	17.2
1979	17	17.3
1980	17.2	17.3
1981	17.3	17.4
1982	17.1	17.4
1983	17	17.4
1984	16.8	17.4
1985	16.6	17.4
1986	16.3	17.4
1987	16.1	17.4
1988	16	17.4
1989	15.8	17.4
1990	15.6	17.4
1991	15.5	17.3
1992	15.5	17.3
1993	14.7	17.2
1994	14.6	17.2
1995	15.4	17.3
1996	15.2	17.3
1997	15	17.4
1998	15.2	17.5
1999	15.5	17.7
2000	15.7	17.9
2001	15.9	18
2002	16.1	18.1
2003	16.3	18.3
2004	16.5	18.4
2005	16.7	18.5
2006	16.8	18.6
2007	16.9	18.7
2008	17	18.7
2009	17.2	18.7
2010	17.3	18.8
2011	17.2	18.9
2012	17.1	18.9
2013	17	18.9
2014	16.9	18.9
2015	16.6	19
2016	16.2	19
2017	16.1	19.1
2018	16.2	19.3
2019	16.3	19.4
2020	16.5	19.5
2021	16.7	19.7
2022	16.8	19.9
2023	17.1	20.1
2024	17.3	20.3
2025	17.4	20.5
2026	17.6	20.7
2027	17.9	21
2028	18.2	21.2
2029	18.6	21.5
2030	18.9	21.7
2031	19.2	21.9
2032	19.5	22.1
2033	19.7	22.3
2034	20	22.5
2035	20.3	22.7
2036	20.6	23
2037	20.8	23.2
2038	21.1	23.4
2039	21.3	23.6
2040	21.5	23.8
2041	21.7	24
2042	21.9	24.2
2043	22.1	24.3
2044	22.3	24.5
2045	22.5	24.7
2046	22.7	24.9
2047	22.9	25.1
2048	23.1	25.4
2049	23.3	25.6
2050	23.5	25.8

In 1960, the median age in Burundi was 17.5 years compared to 24.2 years in Sao Tome and Principe. As of 2024, the median age had changed to 17.3 years in Burundi and to 20.3 years in Sao Tome and Principe.

According to United Nations projections, the median age in Burundi is expected to increased to around 23.5 years by 2050 compared to 25.8 years in Sao Tome and Principe. The aging demographics forecast is based on previous years' birth rates and increasing life expectancy.

Demographic pyramid: age and gender distribution

Table

Age range	Share of population
	Burundi		Sao Tome
	Male	Female	Male	Female
0-4	7.85%	7.72%	6.7%	6.54%
5-9	7.5%	7.41%	6.24%	6.17%
10-14	7.14%	7.09%	6.1%	6.08%
15-19	5.76%	5.75%	5.79%	5.84%
20-24	4.22%	4.24%	4.63%	4.84%
25-29	3.3%	3.33%	3.53%	3.65%
30-34	3.1%	3.15%	2.98%	3.03%
35-39	2.9%	2.98%	2.78%	2.85%
40-44	2.46%	2.56%	2.75%	2.76%
45-49	1.71%	1.79%	2.29%	2.23%
50-54	1.18%	1.25%	1.78%	1.68%
55-59	0.84%	0.91%	1.36%	1.32%
60-64	0.63%	0.71%	1.05%	1.13%
65-69	0.49%	0.58%	0.72%	0.79%
70-74	0.34%	0.43%	0.48%	0.55%
75-79	0.16%	0.23%	0.27%	0.36%
80+	0.11%	0.18%	0.26%	0.47%

The chart above is a variation of a population pyramid and represents a comparison of age and gender structure. Burundi has high demographic potential with 77.5% of people in the 0-34 age group compared to 72.1% and average potential in Sao Tome and Principe.

Age dependency chart

Table

Year	Age dependency ratio
	Burundi			Sao Tome
	Total	Young	Old	Total	Young	Old
1960	93.4%	87.3%	6.11%	57.5%	51.8%	5.71%
1961	93.6%	87.5%	6.13%	61.3%	55.3%	5.99%
1962	93.9%	87.8%	6.16%	67.8%	61.4%	6.45%
1963	94.9%	88.6%	6.23%	73.9%	67%	6.9%
1964	94.9%	88.7%	6.25%	79.5%	72.1%	7.33%
1965	94.4%	88.2%	6.25%	84.6%	76.9%	7.76%
1966	93.7%	87.5%	6.23%	89.4%	81.2%	8.15%
1967	93%	86.8%	6.22%	93.7%	85.2%	8.51%
1968	92.7%	86.5%	6.22%	97.7%	88.8%	8.87%
1969	92.8%	86.6%	6.24%	101.4%	92.2%	9.2%
1970	93%	86.7%	6.26%	103.1%	93.7%	9.32%
1971	92.9%	86.6%	6.26%	102.6%	93.3%	9.28%
1972	95.2%	88.8%	6.35%	101.9%	92.6%	9.28%
1973	97.2%	90.8%	6.42%	101.4%	92.1%	9.28%
1974	96.3%	89.9%	6.39%	100.9%	91.7%	9.26%
1975	96.1%	89.7%	6.39%	100.5%	91.3%	9.21%
1976	96.3%	89.9%	6.39%	100%	90.9%	9.13%
1977	96.2%	89.8%	6.38%	99.4%	90.4%	9.01%
1978	95.7%	89.4%	6.34%	98.8%	89.9%	8.88%
1979	96.3%	89.9%	6.33%	98.1%	89.3%	8.78%
1980	94.6%	88.4%	6.22%	97.4%	88.7%	8.76%
1981	93.6%	87.5%	6.13%	96.8%	87.9%	8.85%
1982	95%	88.9%	6.12%	96.3%	87.5%	8.88%
1983	96.2%	90%	6.11%	96.1%	87.2%	8.82%
1984	97.6%	91.5%	6.1%	95.5%	86.8%	8.76%
1985	99.3%	93.2%	6.1%	95.7%	87%	8.7%
1986	101.3%	95.2%	6.1%	96.4%	87.8%	8.64%
1987	102.5%	96.4%	6.05%	96.9%	88.3%	8.56%
1988	103.7%	97.7%	5.99%	97.1%	88.6%	8.47%
1989	105.2%	99.3%	5.91%	97.2%	88.8%	8.37%
1990	106.3%	100.5%	5.82%	97.1%	88.9%	8.28%
1991	107.1%	101.3%	5.71%	97.3%	89.1%	8.26%
1992	106.5%	100.9%	5.56%	97.6%	89.3%	8.3%
1993	115.5%	109.8%	5.71%	97.6%	89.3%	8.34%
1994	116%	110.4%	5.64%	97.3%	88.9%	8.36%
1995	106.9%	101.6%	5.29%	96.7%	88.3%	8.35%
1996	108.9%	103.7%	5.22%	95.7%	87.4%	8.32%
1997	110.1%	105%	5.18%	94.4%	86.2%	8.28%
1998	107.7%	102.6%	5.06%	92.8%	84.6%	8.2%
1999	104.7%	99.7%	4.95%	90.8%	82.7%	8.1%
2000	102.7%	97.8%	4.86%	88.8%	80.8%	8%
2001	100.5%	95.7%	4.78%	87.5%	79.6%	7.88%
2002	98.4%	93.7%	4.71%	86.8%	79.1%	7.74%
2003	96.4%	91.8%	4.64%	86.2%	78.6%	7.63%
2004	94.2%	89.7%	4.57%	85.8%	78.2%	7.54%
2005	92.7%	88.2%	4.52%	85.4%	77.9%	7.45%
2006	91.9%	87.4%	4.47%	85.1%	77.7%	7.34%
2007	91.4%	87%	4.43%	84.9%	77.7%	7.22%
2008	90.6%	86.3%	4.39%	84.8%	77.7%	7.09%
2009	89.9%	85.5%	4.35%	84.7%	77.7%	6.95%
2010	90%	85.7%	4.32%	84.3%	77.5%	6.81%
2011	91%	86.7%	4.31%	83.8%	77.2%	6.67%
2012	92.2%	87.9%	4.31%	83.7%	77.1%	6.57%
2013	93.4%	89.1%	4.31%	83.8%	77.3%	6.54%
2014	94.6%	90.3%	4.31%	83.8%	77.2%	6.53%
2015	97.1%	92.7%	4.38%	83.5%	76.9%	6.55%
2016	99.9%	95.4%	4.54%	82.8%	76.2%	6.6%
2017	101.1%	96.4%	4.66%	81.9%	75.2%	6.68%
2018	100.5%	95.8%	4.73%	80.8%	74%	6.77%
2019	99%	94.2%	4.78%	79.5%	72.7%	6.86%
2020	97.6%	92.8%	4.81%	77.9%	71%	6.83%
2021	96%	91.2%	4.83%	76%	69.3%	6.74%
2022	94.1%	89.3%	4.82%	74.3%	67.6%	6.71%
2023	91.8%	87%	4.82%	72.9%	66.2%	6.68%
2024	89.5%	84.7%	4.8%	71.6%	64.9%	6.69%

Age dependency is the ratio of people not in the labor force (children under 15 and adults 64+) to people aged 15 to 64.

Age dependency in Burundi decreased from 94.2% to 89.5% between 2004 and 2024.

In Sao Tome and Principe, the ratio of dependent people decreased from 85.8% to 71.6% between 2004 and 2024 with a decreased share of young people and a decreased proportion of people aged 65+.

Working age demographic

Table

Year	Working age population share
	Burundi	Sao Tome
1960	51.7%	63.5%
1961	51.6%	62%
1962	51.6%	59.6%
1963	51.3%	57.5%
1964	51.3%	55.7%
1965	51.4%	54.2%
1966	51.6%	52.8%
1967	51.8%	51.6%
1968	51.9%	50.6%
1969	51.9%	49.6%
1970	51.8%	49.2%
1971	51.8%	49.4%
1972	51.2%	49.5%
1973	50.7%	49.6%
1974	50.9%	49.8%
1975	51%	49.9%
1976	50.9%	50%
1977	51%	50.1%
1978	51.1%	50.3%
1979	51%	50.5%
1980	51.4%	50.6%
1981	51.7%	50.8%
1982	51.3%	50.9%
1983	51%	51%
1984	50.6%	51.1%
1985	50.2%	51.1%
1986	49.7%	50.9%
1987	49.4%	50.8%
1988	49.1%	50.7%
1989	48.7%	50.7%
1990	48.5%	50.7%
1991	48.3%	50.7%
1992	48.4%	50.6%
1993	46.4%	50.6%
1994	46.3%	50.7%
1995	48.3%	50.8%
1996	47.9%	51.1%
1997	47.6%	51.4%
1998	48.2%	51.9%
1999	48.9%	52.4%
2000	49.3%	53%
2001	49.9%	53.3%
2002	50.4%	53.5%
2003	50.9%	53.7%
2004	51.5%	53.8%
2005	51.9%	53.9%
2006	52.1%	54%
2007	52.2%	54.1%
2008	52.5%	54.1%
2009	52.7%	54.2%
2010	52.6%	54.3%
2011	52.4%	54.4%
2012	52%	54.4%
2013	51.7%	54.4%
2014	51.4%	54.4%
2015	50.7%	54.5%
2016	50%	54.7%
2017	49.7%	55%
2018	49.9%	55.3%
2019	50.3%	55.7%
2020	50.6%	56.2%
2021	51%	56.8%
2022	51.5%	57.4%
2023	52.1%	57.9%
2024	52.8%	58.3%
2025	53.5%	58.6%
2026	54.2%	58.8%
2027	55%	59.1%
2028	55.7%	59.5%
2029	56.4%	59.9%
2030	57.1%	60.1%
2031	57.6%	60.3%
2032	58.1%	60.5%
2033	58.5%	60.6%
2034	58.8%	60.7%
2035	59.1%	60.8%
2036	59.4%	60.9%
2037	59.7%	61%
2038	59.9%	61.1%
2039	60.1%	61.3%
2040	60.3%	61.4%
2041	60.5%	61.6%
2042	60.6%	61.7%
2043	60.7%	61.9%
2044	60.8%	62%
2045	61%	62.2%
2046	61.1%	62.3%
2047	61.2%	62.5%
2048	61.3%	62.7%
2049	61.5%	62.9%
2050	61.7%	63.1%

Between 2004 and 2024, the share of working-age demographics aged 15-64 changed from 51.5% to 52.8% in Burundi and from 53.8% to 58.3% in Sao Tome and Principe.

Share of young demographic (0-14 years old)

Table

Year	Share of people 0-14 years old
	Burundi	Sao Tome
1960	45.1%	32.9%
1961	45.2%	34.3%
1962	45.3%	36.6%
1963	45.5%	38.5%
1964	45.5%	40.2%
1965	45.4%	41.6%
1966	45.2%	42.9%
1967	45%	44%
1968	44.9%	44.9%
1969	44.9%	45.8%
1970	44.9%	46.2%
1971	44.9%	46.1%
1972	45.5%	45.9%
1973	46%	45.7%
1974	45.8%	45.6%
1975	45.7%	45.5%
1976	45.8%	45.4%
1977	45.8%	45.3%
1978	45.7%	45.2%
1979	45.8%	45.1%
1980	45.4%	44.9%
1981	45.2%	44.7%
1982	45.6%	44.5%
1983	45.9%	44.5%
1984	46.3%	44.4%
1985	46.8%	44.5%
1986	47.3%	44.7%
1987	47.6%	44.9%
1988	48%	45%
1989	48.4%	45%
1990	48.7%	45.1%
1991	48.9%	45.1%
1992	48.9%	45.2%
1993	51%	45.2%
1994	51.1%	45.1%
1995	49.1%	44.9%
1996	49.6%	44.7%
1997	49.9%	44.3%
1998	49.4%	43.9%
1999	48.7%	43.4%
2000	48.3%	42.8%
2001	47.7%	42.5%
2002	47.2%	42.3%
2003	46.7%	42.2%
2004	46.2%	42.1%
2005	45.8%	42%
2006	45.6%	42%
2007	45.4%	42%
2008	45.2%	42.1%
2009	45%	42.1%
2010	45.1%	42.1%
2011	45.4%	42%
2012	45.7%	42%
2013	46.1%	42%
2014	46.4%	42%
2015	47%	41.9%
2016	47.7%	41.7%
2017	47.9%	41.4%
2018	47.8%	40.9%
2019	47.3%	40.5%
2020	47%	39.9%
2021	46.5%	39.4%
2022	46%	38.8%
2023	45.4%	38.3%
2024	44.7%	37.8%
2025	44%	37.5%
2026	43.2%	37.2%
2027	42.5%	36.8%
2028	41.7%	36.4%
2029	41%	36%
2030	40.3%	35.6%
2031	39.7%	35.4%
2032	39.2%	35.2%
2033	38.8%	35%
2034	38.5%	34.8%
2035	38.1%	34.7%
2036	37.8%	34.5%
2037	37.5%	34.2%
2038	37.2%	34%
2039	36.9%	33.8%
2040	36.6%	33.5%
2041	36.4%	33.2%
2042	36.1%	32.9%
2043	35.9%	32.6%
2044	35.6%	32.3%
2045	35.4%	32%
2046	35.1%	31.6%
2047	34.8%	31.3%
2048	34.4%	31%
2049	34.1%	30.6%
2050	33.7%	30.2%

The share of young people aged below 15 is 44.7% in Burundi and 37.8% in Sao Tome and Principe. Birth rates in Burundi compared to Sao Tome and Principe .

Share of old population (65+)

Table

Year	Share of population 65+ years old
	Burundi	Sao Tome
1960	3.16%	3.62%
1961	3.16%	3.71%
1962	3.18%	3.84%
1963	3.19%	3.97%
1964	3.21%	4.09%
1965	3.21%	4.2%
1966	3.22%	4.31%
1967	3.22%	4.4%
1968	3.23%	4.48%
1969	3.24%	4.57%
1970	3.24%	4.59%
1971	3.25%	4.58%
1972	3.25%	4.6%
1973	3.26%	4.61%
1974	3.26%	4.61%
1975	3.26%	4.59%
1976	3.26%	4.57%
1977	3.25%	4.52%
1978	3.24%	4.47%
1979	3.23%	4.43%
1980	3.2%	4.44%
1981	3.17%	4.5%
1982	3.14%	4.52%
1983	3.11%	4.5%
1984	3.09%	4.48%
1985	3.06%	4.45%
1986	3.03%	4.4%
1987	2.99%	4.35%
1988	2.94%	4.3%
1989	2.88%	4.25%
1990	2.82%	4.2%
1991	2.76%	4.19%
1992	2.69%	4.2%
1993	2.65%	4.22%
1994	2.61%	4.24%
1995	2.56%	4.25%
1996	2.5%	4.25%
1997	2.46%	4.26%
1998	2.44%	4.25%
1999	2.42%	4.24%
2000	2.4%	4.24%
2001	2.38%	4.2%
2002	2.37%	4.14%
2003	2.36%	4.1%
2004	2.35%	4.06%
2005	2.34%	4.02%
2006	2.33%	3.97%
2007	2.32%	3.91%
2008	2.3%	3.84%
2009	2.29%	3.76%
2010	2.27%	3.69%
2011	2.26%	3.63%
2012	2.24%	3.58%
2013	2.23%	3.56%
2014	2.21%	3.56%
2015	2.22%	3.57%
2016	2.27%	3.61%
2017	2.32%	3.67%
2018	2.36%	3.74%
2019	2.4%	3.82%
2020	2.44%	3.84%
2021	2.46%	3.83%
2022	2.49%	3.85%
2023	2.51%	3.87%
2024	2.53%	3.9%
2025	2.55%	3.95%
2026	2.56%	4%
2027	2.57%	4.06%
2028	2.58%	4.12%
2029	2.59%	4.18%
2030	2.61%	4.23%
2031	2.62%	4.29%
2032	2.64%	4.34%
2033	2.67%	4.4%
2034	2.71%	4.48%
2035	2.75%	4.56%
2036	2.8%	4.66%
2037	2.85%	4.75%
2038	2.91%	4.84%
2039	2.98%	4.95%
2040	3.06%	5.07%
2041	3.15%	5.21%
2042	3.26%	5.36%
2043	3.38%	5.52%
2044	3.52%	5.68%
2045	3.67%	5.85%
2046	3.84%	6.02%
2047	4.03%	6.2%
2048	4.21%	6.38%
2049	4.39%	6.55%
2050	4.56%	6.7%

The share of older people aged 65 and over is 2.53% in Burundi and 3.9% in Sao Tome and Principe. Life expectancy in Burundi compared to Sao Tome and Principe .