How old is someone named Deja?
The average Deja is 26 years old.
Half of all living Dejas are between 23 and 30.
When was Deja popular?
Deja rose fast and peaked in 1996, then faded almost as fast. 74% of all Dejas were born within 15 years of each other.
Popular names of 1996 · The most popular names of the 1990s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1960s | 5 | 0 |
| 1970s | 157 | 150 |
| 1980s | 965 | 930 |
| 1990s | 8,319 | 8,200 |
| 2000s | 5,257 | 5,200 |
| 2010s | 1,237 | 1,200 |
| 2020s | 420 | 420 |
How many Dejas are still alive?
About 16,000 Dejas are alive in the US today. That's 98% of the roughly 16,000 babies named Deja since 1962.
Nearly every Deja ever born is still alive, because almost all of them are young.
What generation is the name Deja?
More than half of living Dejas are in Gen Z, born between 1997 and 2012.
- Gen X 1%
- Millennial 33%
- Gen Z 58%
- Gen Alpha 7%
Is Deja an old name?
Not really. Deja is younger than 56 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Deja will be 52 in 2056, so the name is aging fast.
Is Deja a boy or girl name?
Almost entirely girls: 99.5% of living Dejas are women.
Names the same age as Deja
NAME TWIN
Deja's name twin is Sierra. Of all 3,713 names on AgeByName, Sierra's age curve is the closest match to Deja's: 84% alike.
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Questions about the name Deja
How old is the average Deja?
The average Deja in the US is 26 years old. The median is 28, so half are older and half younger.
How many people are named Deja?
About 16,000 Dejas are alive in the US today, out of roughly 16,000 babies given the name since 1962.
When was the name Deja most popular?
In 1996, when about 1,600 baby girls were named Deja.
Is Deja a Gen Z name?
Yes. About 58% of living Dejas 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