How old is someone named Kelsi?
The average Kelsi is 28 years old.
Half of all living Kelsis are between 23 and 35.
When was Kelsi popular?
Kelsi rose fast and peaked in 1991, then faded almost as fast. 65% of all Kelsis were born within 15 years of each other.
Popular names of 1991 · The most popular names of the 1990s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1960s | 6 | under 100 |
| 1970s | 158 | 150 |
| 1980s | 1,511 | 1,500 |
| 1990s | 5,054 | 5,000 |
| 2000s | 2,101 | 2,100 |
| 2010s | 1,023 | 1,000 |
| 2020s | 298 | 300 |
How many Kelsis are still alive?
About 10,000 Kelsis are alive in the US today. That's 98% of the roughly 10,000 babies named Kelsi since 1969.
Nearly every Kelsi ever born is still alive, because almost all of them are young.
What generation is the name Kelsi?
About half of living Kelsis are Millennials, born between 1981 and 1996.
- Gen X 2%
- Millennial 51%
- Gen Z 37%
- Gen Alpha 10%
Is Kelsi an old name?
Not really. Kelsi is younger than 52 in 100 names on AgeByName.
Is Kelsi a boy or girl name?
Almost entirely girls: over 99.9% of living Kelsis are women.
Names the same age as Kelsi
NAME TWIN
Kelsi's name twin is Deonte. Of all 3,713 names on AgeByName, Deonte's age curve is the closest match to Kelsi's: 91% alike.
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Questions about the name Kelsi
How old is the average Kelsi?
The average Kelsi in the US is 28 years old. The median is 30, so half are older and half younger.
How many people are named Kelsi?
About 10,000 Kelsis are alive in the US today, out of roughly 10,000 babies given the name since 1969.
When was the name Kelsi most popular?
In 1991, when about 620 baby girls were named Kelsi.
Is Kelsi a Millennial name?
Yes. About 51% of living Kelsis are Millennials, born between 1981 and 1996.
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