How old is someone named Kayli?
The average Kayli is 23 years old.
Half of all living Kaylis are between 18 and 30.
When was Kayli popular?
Kayli had one big moment, peaking in 2003. 59% of the babies ever named Kayli arrived in a single 15-year stretch.
Popular names of 2003 · The most popular names of the 2000s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1970s | 6 | under 100 |
| 1980s | 490 | 480 |
| 1990s | 2,257 | 2,200 |
| 2000s | 2,882 | 2,900 |
| 2010s | 1,183 | 1,200 |
| 2020s | 316 | 320 |
How many Kaylis are still alive?
About 7,000 Kaylis are alive in the US today. That's 99% of the roughly 7,100 babies named Kayli since 1978.
Nearly every Kayli ever born is still alive, because almost all of them are young.
What generation is the name Kayli?
More than half of living Kaylis are in Gen Z, born between 1997 and 2012.
- Millennial 26%
- Gen Z 60%
- Gen Alpha 14%
Is Kayli an old name?
Not really. Kayli is younger than 62 in 100 names on AgeByName.
Is Kayli a boy or girl name?
Almost entirely girls: over 99.9% of living Kaylis are women.
Names the same age as Kayli
NAME TWIN
Kayli's name twin is Jasmyn. Of all 3,713 names on AgeByName, Jasmyn's age curve is the closest match to Kayli's: 94% alike.
Other spellings: Kayleigh (20) · Kailey (21) · Kaylie (21) · Kaleigh (24) · Kaley (26) · Kayley (23)
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Questions about the name Kayli
How old is the average Kayli?
The average Kayli in the US is 23 years old. The median is 24, so half are older and half younger.
How many people are named Kayli?
About 7,000 Kaylis are alive in the US today, out of roughly 7,100 babies given the name since 1978.
When was the name Kayli most popular?
In 2003, when about 330 baby girls were named Kayli.
Is Kayli a Gen Z name?
Yes. About 60% of living Kaylis 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