How old is someone named Katelyn?
The average Katelyn is 26 years old.
Half of all living Katelyns are between 20 and 33.
When was Katelyn popular?
Katelyn was a boom name: it shot up, peaked in 1993, and dropped away. That's why most Katelyns are close to the same age.
Popular names of 1993 · The most popular names of the 1990s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1970s | 183 | 170 |
| 1980s | 14,815 | 14,000 |
| 1990s | 52,863 | 52,000 |
| 2000s | 47,895 | 47,000 |
| 2010s | 16,519 | 16,000 |
| 2020s | 1,931 | 1,900 |
How many Katelyns are still alive?
About 130,000 Katelyns are alive in the US today. That's 98% of the roughly 130,000 babies named Katelyn since 1970.
Nearly every Katelyn ever born is still alive, because almost all of them are young.
What generation is the name Katelyn?
About half of living Katelyns are in Gen Z, born between 1997 and 2012.
- Millennial 38%
- Gen Z 54%
- Gen Alpha 8%
Is Katelyn an old name?
Not really. Katelyn is younger than 57 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Katelyn will be 53 in 2056, so the name is aging fast.
Is Katelyn a boy or girl name?
Almost entirely girls: 99.9% of living Katelyns are women.
Names the same age as Katelyn
NAME TWIN
Katelyn's name twin is Alyssa. Of all 3,713 names on AgeByName, Alyssa's age curve is the closest match to Katelyn's: 93% alike.
Other spellings: Kaitlyn (26) · Caitlin (32) · Kaitlin (31) · Caitlyn (26) · Katelynn (24) · Katlyn (29)
Compare: Kaitlyn vs. Katelyn
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Questions about the name Katelyn
How old is the average Katelyn?
The average Katelyn in the US is 26 years old. The median is 27, so half are older and half younger.
How many people are named Katelyn?
About 130,000 Katelyns are alive in the US today, out of roughly 130,000 babies given the name since 1970.
When was the name Katelyn most popular?
In 1993, when about 6,000 baby girls were named Katelyn.
Is Katelyn a Gen Z name?
Yes. About 54% of living Katelyns 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