How old is someone named Cecilia?
The average Cecilia is 34 years old.
Half of all living Cecilias are between 11 and 56. The average sits between a large young group and an older one, so many Cecilias are much younger than 34.
When was Cecilia popular?
Most of the Cecilias in the country were born in the last 15 years. The name peaked in 2025 and is still near the top.
Popular names of 2025 · The most popular names of the 2020s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 2,318 | 0 |
| 1910s | 5,705 | 0 |
| 1920s | 6,912 | 110 |
| 1930s | 5,033 | 1,100 |
| 1940s | 8,021 | 4,600 |
| 1950s | 9,983 | 7,800 |
| 1960s | 7,857 | 6,900 |
| 1970s | 5,599 | 5,300 |
| 1980s | 7,062 | 6,800 |
| 1990s | 10,152 | 10,000 |
| 2000s | 11,989 | 12,000 |
| 2010s | 16,150 | 16,000 |
| 2020s | 12,773 | 13,000 |
How many Cecilias are still alive?
About 83,000 Cecilias are alive in the US today. That's 74% of the roughly 110,000 babies named Cecilia since 1880.
Most Cecilias ever born are still alive.
What generation is the name Cecilia?
About one in four living Cecilias are in Gen Alpha, born in 2013 or later.
Is Cecilia an old name?
Somewhat. Cecilia is older than 57 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 Cecilia will be 33 in 2056, about the same as today.
Is Cecilia a boy or girl name?
Almost entirely girls: 99.8% of living Cecilias are women.
Names the same age as Cecilia
NAME TWIN
Cecilia's name twin is Adela. Of all 3,713 names on AgeByName, Adela's age curve is the closest match to Cecilia's: 94% alike.
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Questions about the name Cecilia
How old is the average Cecilia?
The average Cecilia in the US is 34 years old. The median is 27, so half are older and half younger.
How many people are named Cecilia?
About 83,000 Cecilias are alive in the US today, out of roughly 110,000 babies given the name since 1880.
When was the name Cecilia most popular?
In 2025, when about 2,500 baby girls were named Cecilia.
Is Cecilia a Gen Alpha name?
Partly. Gen Alpha are the largest group, about 30% of living Cecilias, 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