How old is someone named Justus?
The average Justus is 21 years old.
Half of all living Justuses are between 12 and 28.
When was Justus popular?
Justus has never really gone out of style. Parents have chosen it every year for more than a century; its busiest year was 2002.
Popular names of 2002 · The most popular names of the 2000s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 20 | 0 |
| 1910s | 196 | 0 |
| 1920s | 207 | 0 |
| 1930s | 113 | under 100 |
| 1940s | 106 | under 100 |
| 1950s | 84 | under 100 |
| 1960s | 65 | under 100 |
| 1970s | 273 | 250 |
| 1980s | 396 | 370 |
| 1990s | 1,842 | 1,800 |
| 2000s | 3,053 | 3,000 |
| 2010s | 2,680 | 2,700 |
| 2020s | 871 | 870 |
How many Justuses are still alive?
About 9,100 Justuses are alive in the US today. That's 91% of the roughly 10,000 babies named Justus since 1880.
Nearly every Justus ever born is still alive, because almost all of them are young.
What generation is the name Justus?
About half of living Justuses are in Gen Z, born between 1997 and 2012.
- Boomer 1%
- Gen X 4%
- Millennial 15%
- Gen Z 51%
- Gen Alpha 29%
Is Justus an old name?
Not really. Justus is younger than 67 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Justus will be 40 in 2056, so the name is getting older.
Is Justus a boy or girl name?
Mostly a boy's name: 91% of living Justuses are men, and 9% are women.
The women average 19 and the men 21.
Names the same age as Justus
NAME TWIN
Justus's name twin is Abigail. Of all 3,713 names on AgeByName, Abigail's age curve is the closest match to Justus's: 93% alike.
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Questions about the name Justus
How old is the average Justus?
The average Justus in the US is 21 years old. The median is 20, so half are older and half younger.
How many people are named Justus?
About 9,100 Justuses are alive in the US today, out of roughly 10,000 babies given the name since 1880.
When was the name Justus most popular?
In 2002, when about 340 baby boys were named Justus.
Is Justus a Gen Z name?
Yes. About 51% of living Justuses are in Gen Z, born between 1997 and 2012.
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