How old is someone named Justin?
The average Justin is 34 years old.
Half of all living Justins are between 27 and 43.
When was Justin popular?
Justin was a boom name: it shot up, peaked in 1988, and dropped away. That's why most Justins are close to the same age.
Popular names of 1988 · The most popular names of the 1980s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 139 | 0 |
| 1910s | 938 | 0 |
| 1920s | 1,297 | under 100 |
| 1930s | 819 | under 100 |
| 1940s | 1,216 | 540 |
| 1950s | 2,295 | 1,500 |
| 1960s | 6,744 | 5,600 |
| 1970s | 87,132 | 79,000 |
| 1980s | 291,884 | 270,000 |
| 1990s | 220,879 | 210,000 |
| 2000s | 123,277 | 120,000 |
| 2010s | 45,676 | 45,000 |
| 2020s | 11,805 | 12,000 |
How many Justins are still alive?
About 750,000 Justins are alive in the US today. That's 95% of the roughly 790,000 babies named Justin since 1880.
Nearly every Justin ever born is still alive, because almost all of them are young.
What generation is the name Justin?
About half of living Justins are Millennials, born between 1981 and 1996.
- Boomer under 1%
- Gen X 14%
- Millennial 54%
- Gen Z 26%
- Gen Alpha 5%
Is Justin an old name?
Somewhat. Justin is older than 58 in 100 names on AgeByName, but younger than plenty of classics.
Looking ahead: if babies keep getting the name at today's pace, the typical Justin will be 59 in 2056, so the name is aging fast.
Is Justin a boy or girl name?
Almost entirely boys: 99.5% of living Justins are men.
Names the same age as Justin
NAME TWIN
Justin's name twin is Joshua. Of all 3,713 names on AgeByName, Joshua's age curve is the closest match to Justin's: 92% alike.
Compare: Jason vs. Justin
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Questions about the name Justin
How old is the average Justin?
The average Justin in the US is 34 years old. The median is 36, so half are older and half younger.
How many people are named Justin?
About 750,000 Justins are alive in the US today, out of roughly 790,000 babies given the name since 1880.
When was the name Justin most popular?
In 1988, when about 35,000 baby boys were named Justin.
Is Justin a Millennial name?
Yes. About 54% of living Justins are Millennials, born between 1981 and 1996.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). Updated each spring. How we calculate this