Girls' name · peaked in 1926
Aileen name popularity since 1925
31,293 babies born in the US from 1925 to 2025 were named Aileen. Half of them were born in 1994 or earlier, so the typical Aileen is about 32 years old in 2026. Aileen peaked in 1926 as the #289 name for girls, and it ranked #799 in 2025.
Key facts
- US babies since 1925
- 31,293
- Named Aileen, 1925–2025
- Peak year
- 1926
- #289 for girls that year
- In 2025
- #799
- for girls in 2025 (340 babies)
- Girls / boys
- 100.0% girls
- 31,288 girls · 5 boys
- Most popular in
- Hawaii
- 7.01× its national share
Peak year is the year Aileen made up the largest share of US girls, in records going back to 1880. Typical age is based on births from 1925 on, not on who is living today.
Aileen births per year, 1925–2025
The biggest year by count was 2009. Measured as a share of all babies, Aileen peaked in 1926.
- Steepest fall: Between 1936 and 1941, Aileen's share of baby girls fell by 47%, from 1 in 5,480 to 1 in 10,200.
- Fastest rise: Between 1995 and 2000, it became 2.1× more common, from 1 in 7,480 baby girls to 1 in 3,620.
Shaded on the chart. Both compare Aileen's share of all US girls five years apart, counting only years with at least 100 babies named Aileen.
Decade by decade
Babies named Aileen in each decade, and its rank among girls' names in the middle year of the decade (1935, 1945 … 2025).
| Decade | Girls | Boys | Rank |
|---|---|---|---|
| 1925–29 | 2,343 | 0 | – |
| 1930s | 2,157 | 0 | #478 |
| 1940s | 1,629 | 0 | #596 |
| 1950s | 1,957 | 0 | #642 |
| 1960s | 2,308 | 0 | #610 |
| 1970s | 1,781 | 0 | #809 |
| 1980s | 2,356 | 0 | #726 |
| 1990s | 3,258 | 0 | #832 |
| 2000s | 5,821 | 0 | #483 |
| 2010s | 5,355 | 5 | #514 |
| 2020–25 | 2,323 | 0 | #799 |
Ranks count every name given to at least 5 girls that year, so they can go past 1,000.
Generation fingerprint
29.3% of babies named Aileen from 1925 to 2025 were born in the Gen Z years (1997–2012). The full split by generation:
Where Aileen is most popular
The index compares Aileen's share of babies in each state with its share nationwide, 1925–2025 (1.50× = 50% more common). States with at least 300 babies named Aileen.
| State | Index | Babies |
|---|---|---|
| Hawaii | 7.01× | 584 |
| California | 2.75× | 7,761 |
| Arizona | 1.88× | 651 |
| New York | 1.70× | 3,431 |
| Texas | 1.59× | 3,331 |
Other spellings
Spellings that sound like Aileen and were given to at least 1,000 girls from 1925 to 2025, with the year each one was most popular.
| Spelling | Girls | Peak year |
|---|---|---|
| Aileen (this page) | 31,288 | 1926 |
| Ayleen | 7,221 | 2012 |
Names with a similar story
Of the other 1999 names on this site, these six had the share of babies closest in shape to Aileen's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Aileen.
Names from the same era
Other common names that peaked within two years of Aileen (1926).
Source: U.S. Social Security Administration national and state baby-name data, which covers names given to at least 5 babies of one sex in a year. About the data