How old is someone named Katlyn?
The average Katlyn is 29 years old.
Half of all living Katlyns are between 25 and 33.
When was Katlyn popular?
Katlyn rose fast and peaked in 1995, then faded almost as fast. 78% of all Katlyns were born within 15 years of each other.
Popular names of 1995 · The most popular names of the 1990s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1970s | 7 | under 100 |
| 1980s | 1,922 | 1,900 |
| 1990s | 10,718 | 11,000 |
| 2000s | 5,077 | 5,000 |
| 2010s | 624 | 620 |
| 2020s | 90 | under 100 |
How many Katlyns are still alive?
About 18,000 Katlyns are alive in the US today. That's 98% of the roughly 18,000 babies named Katlyn since 1979.
Nearly every Katlyn ever born is still alive, because almost all of them are young.
What generation is the name Katlyn?
About half of living Katlyns are Millennials, born between 1981 and 1996.
- Millennial 49%
- Gen Z 49%
- Gen Alpha 2%
Is Katlyn an old name?
Not really. Katlyn is younger than 51 in 100 names on AgeByName.
Is Katlyn a boy or girl name?
Almost entirely girls: over 99.9% of living Katlyns are women.
Names the same age as Katlyn
NAME TWIN
Katlyn's name twin is Cierra. Of all 3,713 names on AgeByName, Cierra's age curve is the closest match to Katlyn's: 92% alike.
Other spellings: Kaitlyn (26) · Katelyn (26) · Caitlin (32) · Kaitlin (31) · Caitlyn (26) · Katelynn (24)
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Questions about the name Katlyn
How old is the average Katlyn?
The average Katlyn in the US is 29 years old. The median is 29, so half are older and half younger.
How many people are named Katlyn?
About 18,000 Katlyns are alive in the US today, out of roughly 18,000 babies given the name since 1979.
When was the name Katlyn most popular?
In 1995, when about 1,300 baby girls were named Katlyn.
Is Katlyn a Millennial name?
Partly. Millennials are the largest group, about 49% of living Katlyns, 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