How old is someone named Joslyn?
The average Joslyn is 24 years old.
Half of all living Joslyns are between 13 and 31.
When was Joslyn popular?
Joslyn peaked in 2010 and has been given less and less ever since. Only 63 babies got the name in 2025.
Popular names of 2010 · The most popular names of the 2010s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1930s | 10 | 0 |
| 1940s | 31 | under 100 |
| 1950s | 407 | 320 |
| 1960s | 231 | 200 |
| 1970s | 563 | 530 |
| 1980s | 959 | 930 |
| 1990s | 1,598 | 1,600 |
| 2000s | 3,369 | 3,300 |
| 2010s | 3,380 | 3,400 |
| 2020s | 707 | 700 |
How many Joslyns are still alive?
About 11,000 Joslyns are alive in the US today. That's 97% of the roughly 11,000 babies named Joslyn since 1930.
Nearly every Joslyn ever born is still alive, because almost all of them are young.
What generation is the name Joslyn?
About half of living Joslyns are in Gen Z, born between 1997 and 2012.
- Boomer 4%
- Gen X 6%
- Millennial 17%
- Gen Z 47%
- Gen Alpha 25%
Is Joslyn an old name?
Not really. Joslyn is younger than 61 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Joslyn will be 44 in 2056, so the name is getting older.
Is Joslyn a boy or girl name?
Almost entirely girls: 99.8% of living Joslyns are women.
Names the same age as Joslyn
NAME TWIN
Joslyn's name twin is Gabriel. Of all 3,713 names on AgeByName, Gabriel's age curve is the closest match to Joslyn's: 90% alike.
Other spellings: Jocelyn (25) · Joselyn (21) · Jocelynn (18)
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Questions about the name Joslyn
How old is the average Joslyn?
The average Joslyn in the US is 24 years old. The median is 20, so half are older and half younger.
How many people are named Joslyn?
About 11,000 Joslyns are alive in the US today, out of roughly 11,000 babies given the name since 1930.
When was the name Joslyn most popular?
In 2010, when about 460 baby girls were named Joslyn.
Is Joslyn a Gen Z name?
Partly. Gen Z are the largest group, about 47% of living Joslyns, 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