Mayotte population pyramid 2026
347,536 people in 2026 (projected). Mayotte’s pyramid has a broad base of children but a pinched waist of young adults, with only about 69 men per 100 women at ages 25–34.
- 2026 population
- 347.5Krank 181 of 237
- Median age
- 17.3 yearsoldest rank 227
- Fertility rate
- 4.43births per woman · above replacement
- Structure
- Youthful2.9% age 65+
Mayotte population pyramid
2026 · Share of total by five-year age group and sex
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The UN series provides historical estimates through 2023. Figures from 2024 onward—including 2026—are medium-scenario projections, not counts or predictions guaranteed to occur.
Mayotte age distribution in 2026
Children under 15 account for 42.1% of the population, while 2.9% are aged 65 or older. The remaining 55.0% are in the conventional working-age range of 15–64. On these shares, the site classifies Mayotte’s age structure as youthful; the guide to expansive population pyramids explains what that shape implies.
The total age dependency ratio is 81.8: about 82 people under 15 or 65+ for every 100 people aged 15–64 (76.6 children and 5.2 older people). This is an age-balance indicator, not a literal count of economic dependants per worker.
What shapes Mayotte’s population pyramid
Pinched in the middle
Mayotte, part of the Comoros archipelago and a French department since 2011, has a pyramid with two very different halves. Below 20 the bands are wide and the sexes balanced. Above 20 the pyramid narrows abruptly, especially on the male side: there are about 69 men per 100 women at 25–34 and 83 at 40–44, and the 25–29 band, born about 1997–2001, is some 16% smaller than its neighbours.
Migration runs strongly in both directions. Many young Mahorais leave for mainland France or Réunion to study and work, while the island receives substantial, often irregular, immigration from the neighbouring Comoros. The UN records only a small net outflow, about 10,000 in 2000–23, but that figure hides large movements that are hard to measure, and the chart alone cannot show which flows shape which bands.
Births far outnumber deaths
Fertility, about 4.4 children per woman, is the highest of any French department, and there are about 11,500 births a year against fewer than 1,000 deaths. The population, already over 900 people per square kilometre, grows by about 3% a year and under the medium scenario nearly doubles to about 645,000 by 2050. Its age structure is closest to those of Ivory Coast and the Republic of the Congo, not to any other part of France.
What to notice across the years
Distinctive cohorts and turning points
Comparing each five-year band with its neighbours picks out the cohorts that break a smooth slope. These irregularities usually record past surges or deficits in births, or migration concentrated at particular ages; the pattern alone does not identify which. The guide to baby booms and echo cohorts explains how to date and interpret them.
| Age band in 2026 | Born about | Feature | Versus neighbouring bands |
|---|---|---|---|
| 25–29 | 1997–2001 | Notch (smaller cohort) | −16% |
In the UN medium scenario births outnumber deaths in every year through 2100. Children under 15 outnumber people aged 65 and older in every pyramid year through 2100.
Births, deaths, and migration
A pyramid changes in only three ways: births add to the base, deaths remove people at every age, and migration adds or removes people mainly in young adulthood. In 2026, Mayotte is projected to record 11,466 births (about 31 births a day) and 919 deaths, a natural increase of 10,547. Net migration adds −2 people, ranking #97 in the net migration rate ranking.
Between 2000 and 2023 the UN estimates 191,787 births, 13,647 deaths, and cumulative net migration of −10,242. Over that period the balance of births and deaths moved the total more than migration did. See how migration shapes a pyramid and birth rate versus fertility rate. The medium scenario assumes net migration of +632 between 2026 and 2050.
Annual values 1950–2100; dashed lines after 2023 are the UN medium projection. The trend table below lists the values by decade.
Life expectancy and mortality
- Life expectancy, women
- 78.9 years42.5 in 1950
- Life expectancy, men
- 74.6 years42.2 in 1950
- Further years at 65
- 16.5 yearsboth sexes
- Infant mortality
- 7.9per 1,000 births · 144 in 1950
- Under-five mortality
- 10.1per 1,000 births
- Mother’s mean age at birth
- 29.9 yearssex ratio at birth 102.7
Women in Mayotte are projected to live 4.3 years longer than men, which is why the female side of the pyramid widens relative to the other at older ages (see the life expectancy gap ranking). Infant mortality has fallen from 144 to 7.9 deaths per 1,000 live births since 1950, ranking #140 of 237 in the infant mortality ranking (highest first). A mean age at childbearing of 29.9 years sets the spacing between generations, and so how far apart echo cohorts sit in the pyramid.
Median age, fertility rate, and global ranks for Mayotte
The median age of 17.3 years splits the population into two equal halves. A total fertility rate of 4.43 births per woman is above the replacement level of roughly 2.1, and life expectancy at birth is 76.6 years.
These ranks compare all 237 countries and areas in this dataset using the same 2026 UN medium projection. Ranks use the stored source precision, so displayed rounding can make adjacent values look identical; small differences should not be overinterpreted.
| Indicator | 2026 value | Global rank | Ranking direction |
|---|---|---|---|
| Population | 347,536 | #181 | Largest first |
| Median age | 17.3 years | #227 | Oldest first |
| Fertility rate | 4.43 | #12 | Highest first |
| Annual growth | +3.0% | #5 | Fastest first |
| Life expectancy | 76.6 years | #109 | Highest first |
| Population aged 65+ | 2.9% | #218 | Highest share first |
Largest age groups in Mayotte
The five largest cohorts identify where the 2026 population is concentrated. They can reflect past birth patterns, survival, and migration; the chart alone does not establish which cause dominates.
| Rank | Age group | Population | Share of total | Male / female |
|---|---|---|---|---|
| 1 | 0–4 | 54,400 | 15.7% | 27.5K / 26.9K |
| 2 | 5–9 | 47,227 | 13.6% | 23.7K / 23.5K |
| 3 | 10–14 | 44,732 | 12.9% | 22.1K / 22.7K |
| 4 | 15–19 | 39,725 | 11.4% | 19.5K / 20.3K |
| 5 | 20–24 | 26,265 | 7.6% | 12.4K / 13.9K |
Sex ratio and the balance by age
In the 2026 projection, Mayotte has 166,541 males and 180,995 females. That is 92.0 males per 100 females, ranking #204 when the dataset is ordered from the highest male-to-female ratio to the lowest.
Males account for 47.9% of the population and females for 52.1%. There are 14,454 more females than males overall. Among people aged 65 and older, the ratio is 101.1 males per 100 females.
The overall balance can conceal large differences by age; how sex ratios change with age explains the usual pattern. The ratio reflects the male/female categories in the UN source and is not a measure of gender identity. Compare all profiles in the sex-ratio ranking.
At birth, 102.7 boys are projected to be born for every 100 girls in 2026, slightly below the typical value of about 105 (compare the sex ratio at birth ranking). The ratio at birth sets the balance at the base of the pyramid; how it changes with age then depends on survival and migration.
How Mayotte has changed since 1950
The population has increased from 20,526 in 1950 to 347,536 in 2026, a change of 1593%. Over the same span, median age moved from 19.8 to 17.3 years.
The under-15 share changed from 39.6% to 42.1%, while the share aged 65 and older changed from 6.6% to 2.9%. These shifts show why total population growth and age-structure change need to be read separately.
How the population could change by 2050
Under the UN medium scenario, Mayotte’s population is projected to grow by about 86%, reaching 645,426 in 2050. The median age changes from 17.3 to 22.5 years.
The 65+ share is projected to rise by 3.9 percentage points to 6.8%. At the same time, the under-15 share is projected at 34.0%. How UN projections work explains the assumptions behind these figures.
The population is still rising at the end of the UN medium projection in 2100, when it reaches 1,375,551. The page therefore does not assign a peak year beyond the available horizon.
Population trend: 1950–2100
Mid-year population for every year. Estimates through 2023; dashed line shows the UN medium projection.
| Year | Population | Median age | Fertility | Life exp. | Births | Deaths | Net migration | Growth |
|---|---|---|---|---|---|---|---|---|
| 1950 | 20,526 | 19.8 | 6.86 | 42.2 | 1,044 | 548 | −120 | +1.9% |
| 1960 | 25,992 | 14.8 | 6.98 | 54.4 | 1,205 | 386 | −98 | +2.8% |
| 1970 | 35,096 | 14.2 | 7.37 | 63.6 | 1,642 | 295 | −367 | +2.8% |
| 1980 | 50,145 | 13.8 | 7.32 | 69.8 | 2,370 | 253 | +563 | +5.3% |
| 1990 | 89,592 | 15.7 | 6.05 | 73.6 | 4,041 | 290 | +1,633 | +6.0% |
| 2000 | 156,492 | 16.9 | 4.96 | 76.4 | 5,812 | 381 | +847 | +4.0% |
| 2010 | 207,422 | 16.4 | 4.43 | 78.3 | 7,585 | 434 | −1,606 | +2.7% |
| 2020 | 284,370 | 16.7 | 4.17 | 74.2 | 9,101 | 894 | +1,226 | +3.3% |
| 2023 | 316,015 | 16.8 | 4.62 | 76.1 | 11,186 | 854 | +137 | +3.3% |
| 2024* | 326,506 | 16.9 | 4.56 | 76.2 | 11,270 | 875 | +108 | +3.2% |
| 2026* | 347,536 | 17.3 | 4.43 | 76.6 | 11,466 | 919 | −2 | +3.0% |
| 2030* | 390,534 | 18.3 | 4.19 | 77.4 | 12,057 | 1,025 | −78 | +2.8% |
| 2040* | 508,067 | 20.5 | 3.67 | 79.1 | 14,156 | 1,419 | −36 | +2.5% |
| 2050* | 645,426 | 22.5 | 3.27 | 80.9 | 16,171 | 1,995 | −173 | +2.2% |
| 2060* | 789,689 | 24.7 | 2.95 | 82.5 | 17,282 | 2,748 | −138 | +1.8% |
| 2070* | 939,449 | 27.0 | 2.69 | 84.0 | 18,542 | 3,620 | +778 | +1.7% |
| 2080* | 1,092,332 | 29.5 | 2.50 | 85.3 | 19,590 | 4,399 | −279 | +1.4% |
| 2090* | 1,239,191 | 32.1 | 2.34 | 86.5 | 19,816 | 5,467 | −253 | +1.1% |
| 2100* | 1,375,551 | 34.5 | 2.20 | 87.6 | 20,006 | 7,401 | +681 | +1.0% |
* 2024 onward is the UN medium projection. Fertility is births per woman; life expectancy is years at birth; births, deaths, and net migration are counts for that calendar year.
Download every year, 1950–2100 (CSV)
2026 population by age and sex
The table provides the counts behind the chart. Age groups are five-year bands, with everyone aged 100 or older combined.
| Age group | Male | Female | Total | Share |
|---|---|---|---|---|
| 0–4 | 27,491 | 26,909 | 54,400 | 15.7% |
| 5–9 | 23,714 | 23,513 | 47,227 | 13.6% |
| 10–14 | 22,070 | 22,662 | 44,732 | 12.9% |
| 15–19 | 19,460 | 20,265 | 39,725 | 11.4% |
| 20–24 | 12,378 | 13,887 | 26,265 | 7.6% |
| 25–29 | 8,165 | 11,841 | 20,006 | 5.8% |
| 30–34 | 8,641 | 12,567 | 21,208 | 6.1% |
| 35–39 | 8,685 | 12,139 | 20,824 | 6.0% |
| 40–44 | 9,043 | 10,959 | 20,002 | 5.8% |
| 45–49 | 7,893 | 8,338 | 16,231 | 4.7% |
| 50–54 | 6,409 | 5,750 | 12,159 | 3.5% |
| 55–59 | 4,172 | 4,066 | 8,238 | 2.4% |
| 60–64 | 3,378 | 3,111 | 6,489 | 1.9% |
| 65–69 | 2,309 | 2,098 | 4,407 | 1.3% |
| 70–74 | 1,326 | 1,310 | 2,636 | 0.8% |
| 75–79 | 711 | 842 | 1,553 | 0.4% |
| 80–84 | 435 | 459 | 894 | 0.3% |
| 85–89 | 209 | 189 | 398 | 0.1% |
| 90–94 | 47 | 77 | 124 | 0.0% |
| 95–99 | 7 | 14 | 21 | 0.0% |
| 100+ | 0 | 1 | 1 | 0.0% |
Countries with the most similar age structure
These profiles have the 2026 age distributions closest to Mayotte’s, measured by the total difference in the share of the population in each five-year band. Similar shapes can arise from very different histories, so the match is a starting point for comparison, not an explanation.
- Ivory Coast96% overlap · median age 18.5
- Republic of the Congo96% overlap · median age 18.7
- Mauritania96% overlap · median age 17.5
- Angola96% overlap · median age 16.7
- Cameroon95% overlap · median age 18.2
- Benin95% overlap · median age 18.2
To calculate school-age, working-age, or older groups with other boundaries, use the age-group calculator for Mayotte.
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APA
World Population Pyramid. (2026, October 19). Mayotte Population Pyramid 2026. https://worldpopulationpyramid.com/countries/mayotte/
MLA
“Mayotte Population Pyramid 2026.” World Population Pyramid, 19 Oct. 2026, worldpopulationpyramid.com/countries/mayotte/.
Chicago
World Population Pyramid. “Mayotte Population Pyramid 2026.” Last modified October 19, 2026. https://worldpopulationpyramid.com/countries/mayotte/.
Underlying data: United Nations, Department of Economic and Social Affairs, Population Division (2024). World Population Prospects 2024.
Frequently asked questions
What is the population of Mayotte in 2026?
Under the UN World Population Prospects 2024 medium scenario, Mayotte's population in 2026 is projected at 347,536.
What is the median age in Mayotte?
The projected median age in Mayotte in 2026 is 17.3 years: half the population is younger and half is older.
What is the fertility rate in Mayotte?
The projected total fertility rate in 2026 is 4.43 births per woman, above the replacement level of about 2.1 in low-mortality populations.
Is Mayotte's population projected to grow?
Between 2026 and 2050, the UN medium scenario indicates the population will grow by about 86%, from 347.5K to 645.4K.
What share of Mayotte is aged 65 or older?
In 2026, 2.9% of the projected population is aged 65 or older. By 2050, the medium scenario places the share at 6.8%.
How many babies are born in Mayotte each year?
The UN medium scenario projects 11,466 births and 919 deaths in 2026, about 31 births a day. Births exceed deaths by 10,547.
What is life expectancy in Mayotte for men and women?
Life expectancy at birth in 2026 is projected at 78.9 years for women and 74.6 years for men, a gap of 4.3 years in favour of women.
Does Mayotte have more immigrants or emigrants?
Mayotte is projected to lose about 2 more people through emigration than it gains in 2026. Between 2000 and 2023 the UN estimates cumulative net migration of −10,242.
What is the sex ratio in Mayotte?
The projected 2026 population sex ratio is 92.0 males per 100 females. This all-age ratio is different from the sex ratio at birth and can vary substantially by age.
Sources and notes
- United Nations, DESA, Population Division: World Population Prospects 2024, medium scenario.
- Population values are mid-year figures. Source values published in thousands are converted to people; displayed figures may imply more precision than is appropriate for planning.
- Historical values through 2023 are estimates. Values from 2024 onward are projections.
- Calculations follow the site methodology.