How old is someone named Rosalie?
The average Rosalie is 40 years old.
Half of all living Rosalies are between 8 and 75. The average sits between a large young group and an older one, so many Rosalies are much younger than 40.
When was Rosalie popular?
Rosalie was popular around 1940, faded for decades, and is back: 1,797 babies got the name in 2025.
Popular names of 1938 · The most popular names of the 1930s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 1,571 | 0 |
| 1910s | 6,310 | 0 |
| 1920s | 11,308 | 210 |
| 1930s | 13,763 | 3,500 |
| 1940s | 12,611 | 6,900 |
| 1950s | 6,795 | 5,300 |
| 1960s | 3,645 | 3,200 |
| 1970s | 1,679 | 1,600 |
| 1980s | 1,672 | 1,600 |
| 1990s | 1,405 | 1,400 |
| 2000s | 1,621 | 1,600 |
| 2010s | 10,535 | 10,000 |
| 2020s | 9,907 | 9,800 |
How many Rosalies are still alive?
About 45,000 Rosalies are alive in the US today. That's 54% of the roughly 84,000 babies named Rosalie since 1880.
Roughly half of all Rosalies ever born are still living.
What generation is the name Rosalie?
About two in five living Rosalies are in Gen Alpha, born in 2013 or later.
Is Rosalie an old name?
Somewhat. Rosalie is older than 67 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 Rosalie will be 26 in 2056, so its average age will actually fall, as the youngest Rosalies make up more of the total.
Is Rosalie a boy or girl name?
Almost entirely girls: over 99.9% of living Rosalies are women.
Names the same age as Rosalie
NAME TWIN
Rosalie's name twin is Estelle. Of all 3,713 names on AgeByName, Estelle's age curve is the closest match to Rosalie's: 90% alike.
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Questions about the name Rosalie
How old is the average Rosalie?
The average Rosalie in the US is 40 years old. The median is 33, so half are older and half younger.
How many people are named Rosalie?
About 45,000 Rosalies are alive in the US today, out of roughly 84,000 babies given the name since 1880.
When was the name Rosalie most popular?
In 1938, when about 3,800 baby girls were named Rosalie.
Is Rosalie a Gen Alpha name?
Partly. Gen Alpha are the largest group, about 41% of living Rosalies, 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