How old is someone named Kirsten?
The average Kirsten is 38 years old.
Half of all living Kirstens are between 27 and 49.
When was Kirsten popular?
Kirsten peaked in 1991 and has been given less and less ever since. Only 60 babies got the name in 2025.
Popular names of 1991 · The most popular names of the 1990s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1930s | 40 | under 100 |
| 1940s | 297 | 170 |
| 1950s | 813 | 650 |
| 1960s | 6,686 | 6,000 |
| 1970s | 8,336 | 7,800 |
| 1980s | 8,807 | 8,500 |
| 1990s | 16,919 | 17,000 |
| 2000s | 9,349 | 9,200 |
| 2010s | 1,809 | 1,800 |
| 2020s | 337 | 340 |
How many Kirstens are still alive?
About 51,000 Kirstens are alive in the US today. That's 96% of the roughly 53,000 babies named Kirsten since 1937.
Nearly every Kirsten ever born is still alive, because almost all of them are young.
What generation is the name Kirsten?
About two in five living Kirstens are Millennials, born between 1981 and 1996.
- Boomer 5%
- Gen X 25%
- Millennial 39%
- Gen Z 29%
- Gen Alpha 3%
Is Kirsten an old name?
Somewhat. Kirsten is older than 63 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 Kirsten will be 63 in 2056, so the name is aging fast.
Is Kirsten a boy or girl name?
Almost entirely girls: 99.6% of living Kirstens are women.
Names the same age as Kirsten
NAME TWIN
Kirsten's name twin is Kirstin. Of all 3,713 names on AgeByName, Kirstin's age curve is the closest match to Kirsten's: 90% alike.
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Questions about the name Kirsten
How old is the average Kirsten?
The average Kirsten in the US is 38 years old. The median is 35, so half are older and half younger.
How many people are named Kirsten?
About 51,000 Kirstens are alive in the US today, out of roughly 53,000 babies given the name since 1937.
When was the name Kirsten most popular?
In 1991, when about 1,900 baby girls were named Kirsten.
Is Kirsten a Millennial name?
Partly. Millennials are the largest group, about 39% of living Kirstens, 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