Portugal Generation Breakdown 2026: How Many Millennials, Gen Z, and Boomers?

By Marko Visic · Updated October 19, 2026

A UN projection for 1 July 2026 from World Population Prospects 2024 (medium variant).

In Portugal, Gen X is the largest generation: 2,453,776 people, 23.6% of the population.

See the population pyramid for Portugal.

Gen Beta: 128,832 (1.2%)
Gen Alpha: 1,042,028 (10.0%)
Gen Z: 1,736,318 (16.7%)
Millennials: 1,886,772 (18.2%)
Gen X: 2,453,776 (23.6%)
Baby Boomers: 2,410,792 (23.2%)
Silent Generation: 728,850 (7.0%)
Greatest Generation: 7,996 (0.1%)

10,395,362

people on 1 July 2026

23.6%

Gen X, the largest generation

16.7%

Gen Z share, the 16th-lowest of the 194 countries

1,170,860

under 14 (Gen Alpha + Gen Beta)

736,846

aged 81+ (Silent + Greatest)

Generation Population Distribution - Portugal

Gen Beta: 1.2%

Gen Alpha: 10.0%

Gen Z: 16.7%

Millennials: 18.2%

Gen X: 23.6%

Baby Boomers: 23.2%

Silent Generation: 7.0%

Greatest Generation: 0.1%

Generation Breakdown by Population - Portugal

Total Population: 10,395,362

Generation	Birth Years	Age Range (2026)	Population	% of Total	Male	Female
Gen Beta	2025–2039	0–1 years	128,832	1.2%	66,107	62,724
Gen Alpha	2013–2024	2–13 years	1,042,028	10.0%	533,168	508,860
Gen Z	1997–2012	14–29 years	1,736,318	16.7%	884,600	851,718
Millennials	1981–1996	30–45 years	1,886,772	18.2%	935,178	951,593
Gen X	1965–1980	46–61 years	2,453,776	23.6%	1,165,790	1,287,986
Baby Boomers	1946–1964	62–80 years	2,410,792	23.2%	1,089,386	1,321,406
Silent Generation	1928–1945	81–98 years	728,850	7.0%	274,168	454,682
Greatest Generation	before 1928	99+ years	7,996	0.1%	1,630	6,366
Total			10,395,362	100.0%	4,950,026	5,445,336

Projected population on 1 July 2026, UN World Population Prospects 2024 (medium variant). Generation definitions: Pew Research Center (Greatest Generation to Gen Z); McCrindle Research (Gen Alpha, Gen Beta).

Portugal Generations: Frequently Asked Questions

Population on 1 July 2026, UN World Population Prospects 2024 (medium variant).

What is the largest generation in Portugal?

Gen X is the largest generation in Portugal, with 2,453,776 people (23.6%).

How many Gen Z, Millennials and Baby Boomers are in Portugal?

Portugal has 1,736,318 Gen Z, 1,886,772 Millennials and 2,410,792 Baby Boomers.

What share of Portugal is Gen Z, and how does it rank?

Gen Z is 16.7% of Portugal, the 16th-lowest Gen Z share of the 194 countries.

How do the youngest and oldest generations compare in Portugal?

The youngest generations, Gen Alpha and Gen Beta, together number 1,170,860 in Portugal, versus 736,846 in the oldest two, the Silent and Greatest generations.

How does the largest generation in Portugal compare with the world?

Gen X is 23.6% of Portugal, compared with 17.5% worldwide.

Explore Generation Data by Country

Other countries in Europe. See all 194 countries →