How Many People Are Named Cecilia?
An estimated 77,704 people in the United States have the first name Cecilia. It is almost exclusively a female name. The average bearer is 34 years old, and Cecilia peaked in popularity in 2024 with 2,238 births that year.
Below you will find a full statistical profile of Cecilia as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Cecilia paired with any surname.
Key Insights
- While Cecilia is overwhelmingly female, 177 male births have been registered with this name since 1880.
Estimated Living Americans
77,704
About 1 in 4,411 people in the U.S.
Rarity
Uncommon
Predicted Gender
Female
99.8% confidence
Average Age
34
years old
Peak Year
2024
2,238 births
Total Registered
109,169
since 1880
Gender Distribution for Cecilia
Cecilia is almost exclusively a female name. Out of 109,169 total births registered, 99.8% were female.
Cecilia as a male name
Ranked #11,647 in 2004
5 male births in 2004
Peak: 1987 (12 births)
Cecilia as a female name
Ranked #123 in 2024
2,238 female births in 2024
Peak: 2024 (2,238 births)
Cecilia: Popularity Over Time
SSA records for Cecilia span from the 1880s to the 2020s, covering 15 decades of naming data. The most popular decade for this name was the 2010s, when 16,150 babies were registered. While Cecilia is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Cecilia by Decade
How has Cecilia tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
| Decade | Total | Male | Female | |
|---|---|---|---|---|
| 1880s | 630 | 0 | 630 | |
| 1890s | 1,504 | 0 | 1,504 | |
| 1900s | 2,318 | 0 | 2,318 | |
| 1910s | 5,705 | 0 | 5,705 | |
| 1920s | 6,912 | 5 | 6,907 | |
| 1930s | 5,033 | 5 | 5,028 | |
| 1940s | 8,021 | 15 | 8,006 | |
| 1950s | 9,983 | 0 | 9,983 | |
| 1960s | 7,857 | 5 | 7,852 | |
| 1970s | 5,599 | 30 | 5,569 | |
| 1980s | 7,062 | 74 | 6,988 | |
| 1990s | 10,152 | 38 | 10,114 | |
| 2000s | 11,988 | 5 | 11,983 | |
| 2010s | 16,150 | 0 | 16,150 | |
| 2020s | 10,255 | 0 | 10,255 | |
Cecilia by State
Birth registrations for Cecilia span all 51 states and territories in the SSA database. The highest counts are in California, Texas, New York. The lowest are in Wyoming, Alaska, Vermont. On average, about 1,971 Cecilias were registered per state.
Cecilia + Last Name Combinations
How many people share a full name with Cecilia as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Cecilia
Other first names starting with C with a similar number of bearers.
Cecilia: Questions and Answers
How many people in the U.S. are named Cecilia?
We estimate approximately 77,704 people named Cecilia are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 4,411 Americans share this first name.
Is Cecilia a common name?
Cecilia is classified as "Uncommon" and is more popular than 99.4% of all first names in the SSA database. A total of 109,169 births have been registered with this name since 1880.
When was Cecilia most popular?
Cecilia reached peak popularity in 2024, when 2,238 babies were given this name. The average age of a living person named Cecilia is approximately 34 years old, reflecting when the name was most commonly given.
Is Cecilia a female name?
Cecilia is predominantly female. 99.8% of people with this name are female. See the gender breakdown above for full details.
How many Cecilia Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Cecilia Smith, Cecilia Johnson, Cecilia Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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