How old is someone named Brenna?
The average Brenna is 28 years old.
Half of all living Brennas are between 20 and 35.
When was Brenna popular?
Brenna was a boom name: it shot up, peaked in 1995, and dropped away. That's why most Brennas are close to the same age.
Popular names of 1995 · The most popular names of the 1990s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1940s | 39 | under 100 |
| 1950s | 254 | 200 |
| 1960s | 544 | 480 |
| 1970s | 1,647 | 1,600 |
| 1980s | 4,187 | 4,000 |
| 1990s | 9,202 | 9,000 |
| 2000s | 9,000 | 8,900 |
| 2010s | 3,784 | 3,800 |
| 2020s | 714 | 710 |
How many Brennas are still alive?
About 29,000 Brennas are alive in the US today. That's 98% of the roughly 29,000 babies named Brenna since 1946.
Nearly every Brenna ever born is still alive, because almost all of them are young.
What generation is the name Brenna?
About half of living Brennas are in Gen Z, born between 1997 and 2012.
- Boomer 1%
- Gen X 8%
- Millennial 34%
- Gen Z 48%
- Gen Alpha 10%
Is Brenna an old name?
Not really. Brenna is younger than 52 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Brenna will be 53 in 2056, so the name is aging fast.
Is Brenna a boy or girl name?
Almost entirely girls: over 99.9% of living Brennas are women.
Names the same age as Brenna
NAME TWIN
Brenna's name twin is Devin. Of all 3,713 names on AgeByName, Devin's age curve is the closest match to Brenna's: 92% alike.
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Questions about the name Brenna
How old is the average Brenna?
The average Brenna in the US is 28 years old. The median is 27, so half are older and half younger.
How many people are named Brenna?
About 29,000 Brennas are alive in the US today, out of roughly 29,000 babies given the name since 1946.
When was the name Brenna most popular?
In 1995, when about 1,200 baby girls were named Brenna.
Is Brenna a Gen Z name?
Partly. Gen Z are the largest group, about 48% of living Brennas, but the name spans several generations.
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