Guinea-Bissau Generation Breakdown 2026: How Many Millennials, Gen Z, and Boomers?

Q: What is the largest generation in Guinea-Bissau?

Gen Z is the largest generation in Guinea-Bissau, with 722,504 people (31.4%).

Q: How many Gen Z, Millennials and Baby Boomers are in Guinea-Bissau?

Guinea-Bissau has 722,504 Gen Z, 451,558 Millennials and 94,748 Baby Boomers.

Q: What share of Guinea-Bissau is Gen Z, and how does it rank?

Gen Z is 31.4% of Guinea-Bissau, the 20th-highest Gen Z share of the 194 countries.

Q: How do the youngest and oldest generations compare in Guinea-Bissau?

The youngest generations, Gen Alpha and Gen Beta, together number 788,260 in Guinea-Bissau, versus 7,827 in the oldest two, the Silent and Greatest generations.

Q: How does the largest generation in Guinea-Bissau compare with the world?

Gen Z is 31.4% of Guinea-Bissau, compared with 24.7% worldwide.

By Marko Visic · Updated October 19, 2026

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

In Guinea-Bissau, Gen Z is the largest generation: 722,504 people, 31.4% of the population.

See the population pyramid for Guinea-Bissau.

Gen Beta: 94,282 (4.1%)
Gen Alpha: 693,978 (30.2%)
Gen Z: 722,504 (31.4%)
Millennials: 451,558 (19.7%)
Gen X: 232,909 (10.1%)
Baby Boomers: 94,748 (4.1%)
Silent Generation: 7,809 (0.3%)
Greatest Generation: 18 (<0.1%)

2,297,808

people on 1 July 2026

31.4%

Gen Z, the largest generation

31.4%

Gen Z share, the 20th-highest of the 194 countries

788,260

under 14 (Gen Alpha + Gen Beta)

7,827

aged 81+ (Silent + Greatest)

Generation Population Distribution - Guinea-Bissau

Gen Beta: 4.1%

Gen Alpha: 30.2%

Gen Z: 31.4%

Millennials: 19.7%

Gen X: 10.1%

Baby Boomers: 4.1%

Silent Generation: 0.3%

Greatest Generation: <0.1%

Generation Breakdown by Population - Guinea-Bissau

Total Population: 2,297,808

Generation	Birth Years	Age Range (2026)	Population	% of Total	Male	Female
Gen Beta	2025–2039	0–1 years	94,282	4.1%	47,844	46,438
Gen Alpha	2013–2024	2–13 years	693,978	30.2%	351,454	342,524
Gen Z	1997–2012	14–29 years	722,504	31.4%	363,480	359,024
Millennials	1981–1996	30–45 years	451,558	19.7%	224,306	227,252
Gen X	1965–1980	46–61 years	232,909	10.1%	109,464	123,444
Baby Boomers	1946–1964	62–80 years	94,748	4.1%	37,086	57,662
Silent Generation	1928–1945	81–98 years	7,809	0.3%	2,994	4,815
Greatest Generation	before 1928	99+ years	18	<0.1%	6	12
Total			2,297,808	100.0%	1,136,634	1,161,173

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).

Guinea-Bissau Generations: Frequently Asked Questions

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

What is the largest generation in Guinea-Bissau?

Gen Z is the largest generation in Guinea-Bissau, with 722,504 people (31.4%).

How many Gen Z, Millennials and Baby Boomers are in Guinea-Bissau?

Guinea-Bissau has 722,504 Gen Z, 451,558 Millennials and 94,748 Baby Boomers.

What share of Guinea-Bissau is Gen Z, and how does it rank?

Gen Z is 31.4% of Guinea-Bissau, the 20th-highest Gen Z share of the 194 countries.

How do the youngest and oldest generations compare in Guinea-Bissau?

The youngest generations, Gen Alpha and Gen Beta, together number 788,260 in Guinea-Bissau, versus 7,827 in the oldest two, the Silent and Greatest generations.

How does the largest generation in Guinea-Bissau compare with the world?

Gen Z is 31.4% of Guinea-Bissau, compared with 24.7% worldwide.

Explore Generation Data by Country

Other countries in Africa. See all 194 countries →