Gen Z vs Gen Alpha vs Millennials vs Boomers: The Real Differences

Five named generations are alive and economically active right now. This is what actually separates them — birth years, the technology they grew up with, and the events they lived through at a formative age.

The cohorts at a glance

Generation	Birth years	Age in 2026	Defined by
Generation Beta	2025 onward	0–1	McCrindle
Generation Alpha	2013–2024	2–13	McCrindle
Generation Z	1997–2012	14–29	Pew Research
Millennials (Gen Y)	1981–1996	30–45	Pew Research
Generation X	1965–1980	46–61	Pew Research
Baby Boomers	1946–1964	62–80	Pew Research

Baby Boomers (1946–1964)

Named for the post-war birth rate surge. Grew up with television as the new mass medium and encountered computers, if at all, in adulthood and usually at work. This cohort is now at or past retirement age across most of the world, which makes it central to pension and healthcare policy debates almost everywhere.

Generation X (1965–1980)

The smallest of the living cohorts, and the bridge generation. Grew up analogue — landlines, physical media, no internet — and adapted to digital as working adults. Often described as the "latchkey" generation because of rising dual-income households during their childhood. Currently in peak earning years and holding a large share of senior management positions.

Millennials (1981–1996)

Came of age exactly as the internet went mainstream. Old enough to remember dial-up and the pre-smartphone world; young enough to have adopted each new platform as it arrived. The defining economic event for this cohort was the 2008 financial crisis, which hit many of them during their first years in the labour market — a period of unemployment or underemployment early in a career has measurable lifetime earnings effects, which is why Millennial wealth accumulation lags earlier cohorts at the same ages.

Generation Z (1997–2012)

The first cohort for whom smartphones and social media were present from childhood rather than arriving during adolescence or adulthood. Two shared experiences stand out. First, COVID-19 disrupted school or early career for essentially the entire cohort simultaneously — an unusually uniform shock. Second, they are entering a labour market being actively restructured by automation and AI, with entry-level roles in several sectors visibly contracting.

Gen Z is also the most formally educated cohort in history by enrolment rates, and in most surveyed countries the most ethnically diverse.

Generation Alpha (2013–2024)

The children of Millennials. The first cohort born entirely into the touchscreen era — most have never encountered a screen that was not interactive. Too young for meaningful behavioural research yet; nearly everything written about Gen Alpha at this stage is projection rather than finding. Worth treating claims about them with more scepticism than usual.

What the comparison is actually good for

The genuine analytical value here is separating age effects from cohort effects. If 25-year-olds today save less than 25-year-olds did in 1990, that could be because young people always save less (an age effect) or because this particular group faced different housing costs and wages (a cohort effect). Comparing cohorts at the same age is how researchers tell those apart.

What it is not good for is predicting individuals. Every cohort here spans 12 to 19 birth years and the entire world. The variation inside any one of them dwarfs the average difference between them — which is why most popular generational stereotypes fall apart when tested against actual survey data, something we look at in what the research shows about Gen Z.

Find your own cohort

Enter your date of birth in our generation calculator to see your cohort, its full range, and whether you sit on a cusp between two.