How old is someone named Aileen?
The average Aileen is 32 years old.
Half of all living Aileens are between 15 and 48.
When was Aileen popular?
Great-grandmother name, or brand-new favorite? Both. Aileen peaked around 1926, fell out of fashion, and is popular again today.
Popular names of 2009 · The most popular names of the 2000s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 818 | 0 |
| 1910s | 2,831 | 0 |
| 1920s | 4,648 | under 100 |
| 1930s | 2,157 | 400 |
| 1940s | 1,629 | 930 |
| 1950s | 1,957 | 1,500 |
| 1960s | 2,308 | 2,000 |
| 1970s | 1,781 | 1,700 |
| 1980s | 2,356 | 2,300 |
| 1990s | 3,258 | 3,200 |
| 2000s | 5,821 | 5,800 |
| 2010s | 5,360 | 5,300 |
| 2020s | 2,323 | 2,300 |
How many Aileens are still alive?
About 26,000 Aileens are alive in the US today. That's 68% of the roughly 38,000 babies named Aileen since 1880.
Roughly half of all Aileens ever born are still living.
What generation is the name Aileen?
About one in three living Aileens are in Gen Z, born between 1997 and 2012.
Is Aileen an old name?
Somewhat. Aileen is older than 55 in 100 names on AgeByName, but younger than plenty of classics.
Looking ahead: if babies keep getting the name at today's pace, the typical Aileen will be 40 in 2056, so the name is aging slowly.
Is Aileen a boy or girl name?
Almost entirely girls: over 99.9% of living Aileens are women.
Names the same age as Aileen
NAME TWIN
Aileen's name twin is Angelo. Of all 3,713 names on AgeByName, Angelo's age curve is the closest match to Aileen's: 91% alike.
Other spellings: Ayleen (13)
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Questions about the name Aileen
How old is the average Aileen?
The average Aileen in the US is 32 years old. The median is 25, so half are older and half younger.
How many people are named Aileen?
About 26,000 Aileens are alive in the US today, out of roughly 38,000 babies given the name since 1880.
When was the name Aileen most popular?
In 2009, when about 690 baby girls were named Aileen.
Is Aileen a Gen Z name?
Partly. Gen Z are the largest group, about 36% of living Aileens, 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