How old is someone named Katelynn?
The average Katelynn is 24 years old.
Half of all living Katelynns are between 18 and 30.
When was Katelynn popular?
Katelynn was a boom name: it shot up, peaked in 1998, and dropped away. That's why most Katelynns are close to the same age.
Popular names of 1998 · The most popular names of the 1990s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1970s | 5 | under 100 |
| 1980s | 1,630 | 1,600 |
| 1990s | 11,311 | 11,000 |
| 2000s | 12,199 | 12,000 |
| 2010s | 5,013 | 5,000 |
| 2020s | 533 | 530 |
How many Katelynns are still alive?
About 30,000 Katelynns are alive in the US today. That's 99% of the roughly 31,000 babies named Katelynn since 1979.
Nearly every Katelynn ever born is still alive, because almost all of them are young.
What generation is the name Katelynn?
More than half of living Katelynns are in Gen Z, born between 1997 and 2012.
- Millennial 29%
- Gen Z 62%
- Gen Alpha 10%
Is Katelynn an old name?
Not really. Katelynn is younger than 61 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Katelynn will be 51 in 2056, so the name is aging fast.
Is Katelynn a boy or girl name?
Almost entirely girls: over 99.9% of living Katelynns are women.
Names the same age as Katelynn
NAME TWIN
Katelynn's name twin is Jazmyne. Of all 3,713 names on AgeByName, Jazmyne's age curve is the closest match to Katelynn's: 93% alike.
Other spellings: Kaitlyn (26) · Katelyn (26) · Caitlin (32) · Kaitlin (31) · Caitlyn (26) · Katlyn (29)
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Questions about the name Katelynn
How old is the average Katelynn?
The average Katelynn in the US is 24 years old. The median is 25, so half are older and half younger.
How many people are named Katelynn?
About 30,000 Katelynns are alive in the US today, out of roughly 31,000 babies given the name since 1979.
When was the name Katelynn most popular?
In 1998, when about 1,500 baby girls were named Katelynn.
Is Katelynn a Gen Z name?
Yes. About 62% of living Katelynns 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