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Madagascar population pyramid 2100

85,341,148 people in 2100 (UN medium projection). This page shows Madagascar’s age and sex structure in 2100 and how it differs from 2026.

2100 population
85.3MUN medium projection
Median age
34.2 years2026: 19.4
Under age 15
21.4%2026: 38.6%
Age 65+
13.3%2026: 3.5%

Madagascar population pyramid

2100 · Share of total by five-year age group and sex

Medium projection
Madagascar population pyramid for 2100: males on the left and females on the right Male share Female share 100+ males: 556 (0.0%) 100+ females: 2,474 (0.0%) 100+ 95–99 males: 8,084 (0.0%) 95–99 females: 24,459 (0.0%) 95–99 90–94 males: 60,092 (0.1%) 90–94 females: 128,473 (0.2%) 90–94 85–89 males: 228,873 (0.3%) 85–89 females: 378,203 (0.4%) 85–89 80–84 males: 561,017 (0.7%) 80–84 females: 791,398 (0.9%) 80–84 75–79 males: 1,001,346 (1.2%) 75–79 females: 1,268,588 (1.5%) 75–79 70–74 males: 1,435,181 (1.7%) 70–74 females: 1,680,372 (2.0%) 70–74 65–69 males: 1,812,226 (2.1%) 65–69 females: 2,005,495 (2.3%) 65–69 60–64 males: 2,128,497 (2.5%) 60–64 females: 2,261,052 (2.6%) 60–64 55–59 males: 2,386,017 (2.8%) 55–59 females: 2,464,671 (2.9%) 55–59 50–54 males: 2,590,017 (3.0%) 50–54 females: 2,627,995 (3.1%) 50–54 45–49 males: 2,744,163 (3.2%) 45–49 females: 2,752,513 (3.2%) 45–49 40–44 males: 2,862,677 (3.4%) 40–44 females: 2,849,990 (3.3%) 40–44 35–39 males: 2,944,646 (3.5%) 35–39 females: 2,916,172 (3.4%) 35–39 30–34 males: 2,994,516 (3.5%) 30–34 females: 2,951,949 (3.5%) 30–34 25–29 males: 3,027,345 (3.5%) 25–29 females: 2,971,884 (3.5%) 25–29 20–24 males: 3,058,688 (3.6%) 20–24 females: 2,993,704 (3.5%) 20–24 15–19 males: 3,098,465 (3.6%) 15–19 females: 3,027,267 (3.5%) 15–19 10–14 males: 3,107,851 (3.6%) 10–14 females: 3,029,959 (3.6%) 10–14 5–9 males: 3,095,206 (3.6%) 5–9 females: 3,010,256 (3.5%) 5–9 0–4 males: 3,075,584 (3.6%) 0–4 females: 2,983,227 (3.5%) 0–4 10%5% Age 5%10%

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Projection

Values for 2100 come from the UN World Population Prospects 2024 medium scenario. They depend on assumptions about fertility, mortality, and migration and are not forecasts guaranteed to occur.

Madagascar age structure in 2100

In 2100, children under 15 are projected to make up 21.4% of the population, people aged 15–64 65.2%, and people aged 65 or older 13.3%. On these shares the structure is classed as transitional; see the guide to population pyramid types.

The total age dependency ratio is projected to be 53.3 (32.9 children and 20.5 people aged 65+ per 100 aged 15–64). The largest five-year groups are 10–14, 15–19, 5–9, which together account for 21.5% of the population.

Fertility is projected to be 2.06 births per woman and life expectancy at birth 74.7 years. The population is projected to change by +0.44% during the year.

Madagascar in 2100 compared with 2026

Between 2026 and 2100, the medium scenario has Madagascar’s population growing by 155% and the median age rising by 14.8 years. The table sets the two years side by side; percentage-point differences compare shares, not counts.

Indicator20262100Change
Population33,522,05285,341,148+154.6%
Median age (years)19.434.2+14.8
Under 1538.6%21.4%−17.2 pts
Aged 15–6457.8%65.2%+7.4 pts
Aged 65+3.5%13.3%+9.8 pts
Fertility rate3.782.06−1.72
Life expectancy (years)64.374.7+10.4
Males per 100 females100.697.9−2.7

Madagascar population by age and sex in 2100

Counts by five-year age group, with everyone aged 100 or older combined. Download the CSV for every chart year.

Age groupMaleFemaleTotalShare
0–43,075,5842,983,2276,058,8117.1%
5–93,095,2063,010,2566,105,4627.2%
10–143,107,8513,029,9596,137,8107.2%
15–193,098,4653,027,2676,125,7327.2%
20–243,058,6882,993,7046,052,3927.1%
25–293,027,3452,971,8845,999,2297.0%
30–342,994,5162,951,9495,946,4657.0%
35–392,944,6462,916,1725,860,8186.9%
40–442,862,6772,849,9905,712,6676.7%
45–492,744,1632,752,5135,496,6766.4%
50–542,590,0172,627,9955,218,0126.1%
55–592,386,0172,464,6714,850,6885.7%
60–642,128,4972,261,0524,389,5495.1%
65–691,812,2262,005,4953,817,7214.5%
70–741,435,1811,680,3723,115,5533.7%
75–791,001,3461,268,5882,269,9342.7%
80–84561,017791,3981,352,4151.6%
85–89228,873378,203607,0760.7%
90–9460,092128,473188,5650.2%
95–998,08424,45932,5430.0%
100+5562,4743,0300.0%

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APA

World Population Pyramid. (2026, September 28). Madagascar Population Pyramid 2100. https://worldpopulationpyramid.com/countries/madagascar/2100/

MLA

“Madagascar Population Pyramid 2100.” World Population Pyramid, 28 Sept. 2026, worldpopulationpyramid.com/countries/madagascar/2100/.

Chicago

World Population Pyramid. “Madagascar Population Pyramid 2100.” Last modified September 28, 2026. https://worldpopulationpyramid.com/countries/madagascar/2100/.

Underlying data: United Nations, Department of Economic and Social Affairs, Population Division (2024). World Population Prospects 2024.

Frequently asked questions

What is the projected population of Madagascar in 2100?

UN World Population Prospects 2024 projects Madagascar's population in 2100 at 85,341,148 under the medium scenario.

What will be the median age in Madagascar in 2100?

The median age is projected to be 34.2 years, compared with 19.4 years in 2026.

What share of Madagascar is projected to be under 15 or 65+ in 2100?

21.4% are projected to be under 15 and 13.3% aged 65 or older, giving a total age dependency ratio of 53.3.

Sources and notes