Latin America · BR
Generation Alpha & Beta
in Brazil
How many of each cohort Brazil has, how fast the next one is arriving, and what the fertility rate, median age and school system mean for both.
Brazil has approximately 44 million Generation Alpha people (born 2010–2024), about 20.7% of its population, and roughly 4.5 million Generation Beta children born since 2025. Its fertility rate is 1.55 and its child population is shrinking, projected -24% by 2040.
Births since 1 January 2025 at Brazil's own rate, less infant mortality. It moves while you read.
Born 2010–2024 — 20.7% of the population, aged 2–16 this year.
One birth every 12.6 seconds in Brazil. All of them Generation Beta.
Smaller than the Alpha cohort of 44 million.
Size of the Generation Alpha cohort
Share of the population under 15
Total fertility rate
Child population to 2040 (−24%)
Brazil against the world average
Key dates for Brazil
14 compulsory years from age 6.
Born on 1 January 2025, they reach Brazil's starting age of 6.
Under-15s change by −24% against today.
Eighteen years after the cohort opened.
The cohort closes on 31 December 2039; its youngest members enter school here.
School dates follow Brazil's own starting age of 6 and 14 compulsory years, so they differ from the global figures on our Generation Beta page.
Social media age law in Brazil
In force: Accounts of under-16s must be linked to a parent's or guardian's account (minimum age 16). In force since 17 March 2026.
Source: Lei 15.211/2025, checked 16 October 2026. Every country's rule: social media age laws by country.
Every figure on this page
Brazil in 20 numbers
| Indicator | Brazil | World average | Rank |
|---|---|---|---|
| Population | 213.0 million | — | #7 of 194 |
| Generation Alpha (born 2010–2024) | 44 million | — | #8 of 194 |
| Gen Alpha share of population | 20.7% | — | #105 of 194 |
| Projected Gen Beta births 2025–39 | 35 million | — | #10 of 194 |
| Births per year | 2.5 million | — | #10 of 194 |
| Births per day | 6,849 | — | #10 of 194 |
| Under-15 share of population | 20% | 25% | #108 of 194 |
| Total fertility rate | 1.55 | 2.2 | #129 of 194 |
| Median age | 34 years | 31 years | #83 of 194 |
| Life expectancy at birth | 76 years | 73 years | #84 of 194 |
| Urban population | 88% | 58% | #28 of 194 |
| Internet use | 84% | 68% | #83 of 192 |
| Secondary school completion | 72% | 60% | #122 of 189 |
| School starting age | age 6 | — | #30 of 194 |
| Compulsory years of schooling | 14 years | — | #6 of 194 |
| Daily screen time, ages 8–12 | 4.3 hours | — | #7 of 42 |
| Cost of raising a child to 18 | $55k | — | #24 of 61 |
| Under-15 population change to 2040 | −24% | — | #176 of 194 |
| Youth dependency ratio | 29 per 100 adults | — | #110 of 194 |
| Mobile connections per 100 people | 110 | — | #103 of 194 |
Rank is out of the 194 countries profiled here and always runs highest first — so #1 on median age is the oldest country, not the youngest. World averages are population-weighted global figures and are shown only where a comparable one exists. Sources: UN World Population Prospects, World Bank Open Data, UNESCO and ITU, via our sources page.
1950 to 2023, with the UN projection to 2030
Brazil birth rate and fertility rate by year
About 2.6 million babies were born in Brazil in 2023, and women had 1.62 children on average. Since 1950, births peaked in 1983 at about 4 million. Fertility first fell below the replacement level of 2.1 in 2002. Annual births are 25% lower than in 2000.
Fertility rate (children per woman)
Births per year
Thousands of births. Dashed: UN medium-variant projection.
| Year | Births | Fertility rate |
|---|---|---|
| 1950 | 2.5 million | 6.12 |
| 1960 | 3.2 million | 6.05 |
| 1970 | 3.4 million | 4.93 |
| 1980 | 3.9 million | 4.04 |
| 1990 | 3.7 million | 2.90 |
| 2000 | 3.5 million | 2.25 |
| 2010 | 3 million | 1.79 |
| 2015 | 3 million | 1.78 |
| 2020 | 2.7 million | 1.65 |
| 2021 | 2.7 million | 1.64 |
| 2022 | 2.6 million | 1.63 |
| 2023 | 2.6 million | 1.62 |
| 2025 projected | 2.5 million | 1.60 |
| 2030 projected | 2.4 million | 1.58 |
UN World Population Prospects 2024, republished by Our World in Data. Years to 2023 are UN estimates, which can differ from a country's own registered counts; later years are the UN medium-variant projection. Every country is ranked on fertility rate by country.
Regional peers
Elsewhere in Latin America
Colombia
11 million Generation Alpha
Argentina
11 million Generation Alpha
Peru
8 million Generation Alpha
Venezuela
7 million Generation Alpha
Chile
4 million Generation Alpha
Guatemala
6 million Generation Alpha
Ecuador
4 million Generation Alpha
Bolivia
3 million Generation Alpha
Run the numbers yourself
Tools that use this data
Gen Beta by Country Forecast
Where the 2.1 billion Betas will be born, and which countries shrink instead.
Under-15 Share by Country
The countries where Alpha and Beta make up the largest share of the population.
Global Child Population Table
Where the world's children are, ranked by region, with the direction each one is…
Median Age Calculator
What a country's median age implies about its Alpha and Beta share, its dependency…
School-Age Population Forecast
How many children will be of school age in any year, globally or nationally.
Where a tool takes a number it opens prefilled with Brazil's own figure rather than the world one, and every input stays editable. The rest are the same ranked tables for every country.
Frequently asked about Brazil
How many Gen Alpha are there in Brazil?
Approximately 44 million people born between 2010 and 2024 live in Brazil, about 20.7% of the population.
How many Gen Beta children are there in Brazil?
Roughly 4.5 million children have been born in Brazil since 1 January 2025, growing by about 285 every hour.
What is the fertility rate in Brazil?
Brazil has a total fertility rate of 1.55 children per woman, against a replacement level of 2.1 and a world average of about 2.2.
At what age do children start school in Brazil?
Compulsory schooling begins at age 6 in Brazil, and runs for 14 years.
Is the child population in Brazil growing or shrinking?
It is shrinking. The under-15 population is projected to change by -24% between now and 2040.
How many babies are born in Brazil each year?
About 2.6 million in 2023, according to UN estimates, down from a peak of about 4 million in 1983 (the highest since 1950). The UN projects about 2.4 million in 2030.
How has the fertility rate in Brazil changed over time?
It was 6.12 children per woman in 1950 and 1.62 in 2023. It first fell below the replacement level of 2.1 in 2002.
AlphaBetaMinds (2026). Generation Alpha and Generation Beta in Brazil. Retrieved from https://alphabetaminds.com/countries/brazil
The printed sheet keeps the headline numbers, the world comparison, the key dates, the full indicator table and this citation, and drops the navigation, the tools and the FAQ. It fits a page or two and needs no login.
Free to reproduce, commercially or not, with a credit and a link. Figures are estimates for 2025–2026 and are updated when the underlying sources are.