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

In Slovenia, Gen X is the largest generation: 492,862 people, 23.3% of the population.

Population on 1 July 2026, UN World Population Prospects 2024 (medium variant). See the population pyramid for Slovenia.

Gen Beta — 25,754 (1.2%)
Gen Alpha — 240,966 (11.4%)
Gen Z — 345,778 (16.4%)
Millennials — 427,624 (20.2%)
Gen X — 492,862 (23.3%)
Baby Boomers — 469,373 (22.2%)
Silent Generation — 110,798 (5.2%)
Greatest Generation — 1,418 (0.1%)

2,114,574

people on 1 July 2026

23.3%

Gen X — the largest generation

16.4%

Gen Z share, the 10th-lowest of the 194 countries

266,720

under 14 (Gen Alpha + Gen Beta)

112,216

aged 81+ (Silent + Greatest)

Generation Population Distribution - Slovenia

Gen Beta: 1.2%

Gen Alpha: 11.4%

Gen Z: 16.4%

Millennials: 20.2%

Gen X: 23.3%

Baby Boomers: 22.2%

Silent Generation: 5.2%

Greatest Generation: 0.1%

Generation Breakdown by Population - Slovenia

Total Population: 2,114,574

Generation	Birth Years	Age Range (2026)	Population	% of Total	Male	Female
Gen Beta	2025–2039	0–1 years	25,754	1.2%	13,301	12,452
Gen Alpha	2013–2024	2–13 years	240,966	11.4%	124,096	116,870
Gen Z	1997–2012	14–29 years	345,778	16.4%	179,194	166,585
Millennials	1981–1996	30–45 years	427,624	20.2%	228,582	199,042
Gen X	1965–1980	46–61 years	492,862	23.3%	255,920	236,942
Baby Boomers	1946–1964	62–80 years	469,373	22.2%	223,890	245,483
Silent Generation	1928–1945	81–98 years	110,798	5.2%	39,320	71,478
Greatest Generation	before 1928	99+ years	1,418	0.1%	237	1,180
Total			2,114,574	100.0%	1,064,540	1,050,033

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

Slovenia Generations: Frequently Asked Questions

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

What is the largest generation in Slovenia?

Gen X is the largest generation in Slovenia, with 492,862 people (23.3%).

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

Slovenia has 345,778 Gen Z, 427,624 Millennials and 469,373 Baby Boomers.

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

Gen Z is 16.4% of Slovenia, the 10th-lowest Gen Z share of the 194 countries.

How do the youngest and oldest generations compare in Slovenia?

The youngest generations, Gen Alpha and Gen Beta, together number 266,720 in Slovenia, versus 112,216 in the oldest two, the Silent and Greatest generations.

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

Gen X is 23.3% of Slovenia, compared with 17.5% worldwide.

Explore Generation Data by Country

🌍 World (all countries)

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Asia

Europe

Latin America and the Caribbean

Compare generation sizes across 194 countries. See how many Millennials, Gen Z, Boomers, and other generations live in each country on UN population data.